Standard Range Nominal Diameter 3-16 mm

Transcription

1 Standard Range Nominal Diameter - 1 mm

2 2 steps for ordering properly: Choose screw type A or B for ground or rolled screws: 1412 or 142 Flange 2422 or 2442 End cap with flange 1214 or 124 Cylindrical 1112 or 112 Nut with connecting thread 1 or 10 Spring preloaded double in housing with connection thread Ordering Code: 1412/ T P 1412 Type of 2 Lead Nominal dn [mm] 1 [mm] 1 [mm] T ISO accuracy class P Appendix for backlash free Ordering Example: Ball screw with cyl. on rolled screw with backlash: 124/ T Ball screw with flange on ground screw, backlash free: 1412/ T P Accuracy Classes (see page ) For screws with ground thread (1412 / 2422 / 1214 / 1112 / 1). Tolerance of lead variation based on 00 mm of thread length. V 00p T 0: 4µm / 00mm T 1: µm / 00mm T 2: µm / 00mm T : 12µm / 00mm T : 2µm / 00mm For screws with rolled thread (142 / 2442 / 124 / 112 / 10). T : 2µm / 00mm T : 2µm / 00mm T : 2µm / 00mm Accuracy class ball screws ar NOT available with preloaded s except spring preloaded type 10. The stated strokes already include a certain safety and can possibly even be exceeded. Unless otherwise specified, all ball screws are shipped with our standard grease Klüber Staburags NBU EP applied. Please take note of our instructions for use, installation and operation (page 14/1)! Additonal bearings and bearing design are available on separate sheets attached to this catalog.

3 2 Specifications are subject to change without notice. With the issue of this catalog, all previous Miniature Ball Screw catalog will be void. Other product names mentioned in this catalog may be trademarks or registered trademarks of their respective companies and are acknowledged hereby. Reproduction is prohibited without the express written permission of August Steinmeyer GmbH & Co. KG Copyright 0/200 Printed in Germany

4 Up to Date with Steinmeyer The production plant in Albstadt /Germany. Together with sister companies in Suhl and Dresden, the Steinmeyer group represents one of the leading makers of ball screws and precision gauging instruments. The company Steinmeyer was established in 1920, and was originally concerned exclusively with the production of precision measuring instruments. Almost 40 years ago, a second line was launched with the development of what was then an almost unknown technology: the ball screw-now the company s most important product line. Steinmeyer is seen as one of the pioneers in this sector. In those early days ball screws were produced with nominal diameters between and 1 mm for instrument engineering and for research equipment applications. With the advent of numerical controls in the machine tools sector, the production range was successively extended to include larger sizes. Today, Steinmeyer offers a wide product program ranging from to 0 mm in diameter that sets whole new standards of quality. Experience and flexibility, as well as continually updated production facilities have made the name Steinmeyer synonymous with quality and reliability the world over. The company s continued expansion reflects the success of our close cooperation with our customers.

5 Up to Date with Steinmeyer essential role to play in deter- Steinmeyer flexibility and the To Steinmeyer quality means mining overall plant and equipment scope of our production range are that we use our knowledge to performance. It also represents a unique in the field. Our production transform the needs of our considerable factor in the cost of program includes a standard customers into an individual the final product, as it is usually program of miniature ball screws solution to meet even the most one of the most expensive pur- in the range of mm to 1 mm demanding specifications - never chase parts. nominal diameter, and different less, but sometimes even a bit Ball screw technology is not a new tive prices to the most renowned shapes of standardized s for Non-standard s still use our more. field in the world of industry. How- Steinmeyer has gained an out- names in the mechanical engi- the range of 1 mm to 0 mm. unique design features, such as ever, the systemrelated properties standing reputation in this field. neering industry. In cooperation For ball screws within a range of our advanced ball recirculation of the ball screw such as minimal We supply top quality compo- with our customers, we provide 1 to 0 mm nominal diameter a and our preloading system. Thus friction, preloading capability and nents at internationally competi- individual solutions for a widely separate catalog is available. our customers will benefit from the non-stickslip effects, to name but varying range of applications. outstanding performance of our a few, are nowadays no longer Highly developed production As our design allows us to ball screws without changing the sufficient as such to equip today s engineering and our many meet almost any possible require- design of their machines. We un- high-tech machines and plants decades of experience in this ment regarding outside derstand that quality is a never with adequate transmission sys- field ensure that we stay tech- dimensions, we can provide our ending process. This is why we tems. In practically every case of nically and economically up to customers with customized s, seek close proximity to and com- application, the ball screw has an date. too. munication with our customers. 4

6 National Standards Used Accuracy Grades DIN / ISO / JIS or ANSI Standard Standard Lead Accuracy Grades All designations used in this catalog fully comply to the German DIN 9 01/part I-VI, and the European ISO/DIS 40 standard. This applies especially to the calculation of load capacity. When comparing, be sure to interpret values stated according to ANSI B.4 standard correctly. If uncertain, please contact our engineering service for assistance. Steinmeyer ball screws are available as a standard in five different accuracy grades, according to the ISO standard (grades 1,, for high precision ball screws and grades and for normal precision ball screws). Two accuracy grades have been added to meet requirements as per JIS standard grades 0 and 2. Regarding lead accuracy, both standards use five different values to define limits for mean travel deviation, travel variations and specified travel deviation. The respective designations that refer to the JIS standard are given in parenthesis. Fig. 2: The mean lead deviation e 0a with tolerances ± e p at the length l u. deviation l u Fig. : The variation v ua with tolerances v up at the length l u. l u e 0a +e p - e p travel Table 1 screw length Tolerances e p for mean lead deviation e 0a [ m] I u [mm] from Table 2 to Grade c: Specified lead deviation, used to compensate heat effects or if the screw shall be held under tension (T). travel screw length Tolerances v up for variation v ua [ m] I u [mm] Grade e p : v up : v 00p : Represents the deviation from a straight line, which is to be drawn as an average of the actual lead deviation over the full travel (E). Permissible variation of lead over full travel, which is defined as vertical distance of two straight lines parallel to the average (e p ), which include maximum and minimum of the lead graph (e). Same as v up, but refers to the maximum within any interval of 00 mm (e 00 ). v 2πa : Variation of lead within one revolution (e 2π ). deviation v up v ua Fig. 4: The varation v 00a with tolerance v 00p at the length of 00 mm. l u from to Fig. 1 travel l u deviation Table Tolerances v 00p for variation v 00a [ m] travel Grade deviation v up c e sa -e p +e p e 0a v 00p v 00a Fig. : The variation v 2πa within 2π rad.( =1 rev.) deviation travel n.2πrad Table Tolerances v 2πp for variation v 2πa [ m] Grade 2 2 v 2πp v 2πa

7 Ball Screw Selection Guide Ball Screw Selection Guide Load Capacity Selection Dynamic Axial Load Capacity C a Fig. Ball screws usually will be used carrying loads under dynamic conditions. The selection therefore has to take into consideration the load and the travel - or number of revolutions - made under this load. The normal service life expectancy is based on the fatigue of the material of the balls. Basically, travel made under higher load will determine the actual service life more than travel made under lower loads. As hardly any application will give a constant load, a mean load must be calculated, which will result in the same service life. This so-called dynamic equivalent load F m is then to be compared with the dynamic load capacity C a. For simplification, a typical work cycle of the machine under design should be described along with load and load direction, percentage of time and speed for every step. n [rpm] n m F [N] F m Equation.1 Equation.2 Equation. The dynamic load capacity for a ball screw listed in the catalog is based on the ISO 40 / DIN 901 calculations. This dynamic load capacity is the load F m *, under which the ball screw will show a service life of 1 million revolutions (L rating). To compare the ISO 40/DIN 901 with the ANSI.4 19, load capacity C a and service life must be converted in P i and B rating. a L ( ) 1 / F m = [ N ] C a = F m. L = ( C a F m ) L ( )1 / [ N ]. [rev.] F m = Dynamic equivalent load [N] C a = Dynamic load capacity [N] L = Nominal service life [rev.] P = Lead [mm] P i = Dynamic load capacity [LBS]; ANSI.4 C a = Dynamic load capacity [N] n 1 n 2 n q [%] F 1 F 2 F q [%] Equation.4 C a = P i. ( ) P / [N] q 1 q 2 0 q q 1 q 2 0 q The resulting actual service life expectancy should be in the range of: In the simplest case - non-preloaded single - these values can be converted to the dynamic equivalent load F m and the average speed n m by means of the following formulas: L 9 [rev.] Equation 1.1 q. 1 n. 1 F 1 + q. 2 n. 2 F q. z n. z F z F m = ( q. 1 n 1 + q. 2 n q. z n z ) 1 / [N] It is not recommended to rely on service life expectancies outside the above range. Equation 1.2 q 1 n 1 + q 2 n q z n (... z n m = q 1 + q q z ) [rpm] Static Axial Load Capacity C 0a The load F m, a ball screw can carry under static conditions is limited by the static load capacity. Exceeding this value will destroy the ball screw due to permanent deformation. F m = Dynamic equivalent load [N] F i = Actual load [N] n i = Actual speed [rpm] q i = Time of each duty cyclus [%] n m = Average speed [rpm] In all other cases the influence of the preload must be accounted for by calculating the modified dynamic equivalent load F m *. In case of single s preloaded by ball oversize the modified actual load F i * can be calculated by means of the following approximations: Radial Loads Ball screws are designed to take loads. The load capacities given in this catalog apply only to pure loading! As there are always tolerances in the alignment of bearings and linear guideways, there may be a small amount of radial force, which should be minimized. Under normal conditions, a radial load less than % of the minimum load will not cause any problems. When considering a ball screw for use under radial load, please consult Steinmeyer engineers. Equation 2 F i * = 1.2 F pr + lf i /2l The resulting loads F i * now can be used for calculating the dynamic equivalent load F m * by means of formula 1.1. Stiffness Besides the pure geometric accuracy the precision in position is mainly influenced by the stiffness (rigidity) of a ball screw drive. For miniature ball screws, the best values in stiffness will be reached by using preloaded s by ball oversize. 9

8 Ball Screw Selection Guide Ball Screw Selection Guide Critical Column Load Equation 4 Besides the service life calculations regarding the fatigue of the balls there may be further restrictions of the maximum loads. First the load should never exceed the static load capacity, as this will cause immediate permanent damage to the ball screw. Secondly for very long and slim screws, the critical column load needs to be considered. For quickly determining the buckling load, following approximation can be used for calculation: P B = ( m d N 4 / l s 2 ) 4 [N] Maximum Speed n max A further limitation is given by the maximum speed of the. As the balls are not running with constant speed through the like in a ball bearing, but have to follow the ball deflector grooves and thus receive an acceleration, the maximum speed is not simply determined by the temperature limits of the lubricant. So, the mass of the balls and the resulting accelerations and forces put a limitation to the speed. As Steinmeyer is using exclusively highly sophisticated ball recirculation systems, higher speeds are possible compared to other systems. Equation P B = Buckling load [N] d N = Nominal diameter of ball screw [mm] l s = Length of unsupported shaft [mm] m = Coefficient of bearing configuration fixed - fixed: 22.4 fixed - supported: 11.2 supported - supported:. fixed - free: 1.4 For safety reasons, a factor of 0. must be applied: F max = P B 0. Table : Series 1412/2422 Series 1112 Series 1214 For maximum speeds refer to following tables: n max = Maximum speed [rpm] d N P I u 0, , 2 2, 4 Toleranzklasse [ m] Critical Speeds Equation Equation The critical speed is the speed, where the screw starts vibrating because of resonance. For rotating screws the maximum speed (rpm) depends on the screw s nominal diameter, length and bearing method. For quickly determining the critical speed, following approximation can be used for calculation: n k = F d N (1 / l s2 ) [rpm] n k = Critical speed [rpm] d N = Nominal diameter of ball screw [mm] l s = Length of unsupported shaft [mm] F = Coefficient of bearing configuration fixed - fixed: 2. fixed - supported: 1. supported - supported: 11. fixed - free:.9 For safety reasons, a factor of 0. must be applied: n max = n k 0. Table : Series 1 Extreme Operating Conditions d N P I u Toleranzklasse [ m] In case of rolled executions the maximum speed values should be reduced by 0 % for all Series. The maximum speeds listed in this catalog apply only when using the ball screw under normal conditions. Extreme accelerations, vibrations, mounting inaccuracies or permanent use at high speeds, which may lead to extensive heating and possible failure of the lubricant, may reduce service life. Please make use of the experience of our application engineers in such cases

9 Ball Screw Selection Guide Ball Screw Selection Guide Lubrication Miniature ball screws normally will be operated with grease lubrication. In general, oil lubrication is preferred, if peripherical devices for relubrication already exist in the machine. In case of oil lubrication the oil feed rate should be at least 0. cm / hour or more, depending on the operation speed of the ball screw. The oil used should be suitable for extreme pressure. In general, the same oil as for ball bearing lubrication can be used. As the operating temperature severely affects the accuracy in position, oil lubrication is preferred for high speed operation and for high precision applications. Grease lubrication can be used if a central oil supply is not available. Re-lubrication must be considered carefully, because there is always more lubricant loss than for a ballbearing. The lubrication frequency depends highly on speed, number of revolutions made in a specific time, and environmental conditions. Also, possible contamination of the screw surface with dirt, dust, chips or aggressive gases or fluids may cause shorter re-lubrication interval to be necessary. If in doubt, please ask our application engineers. Maintenance Table Servicing a ball screw generally means cleaning and re-lubrication. In case of oil lubrication there is no attention required, except verifying that the oil supply is operational and covers / boots are able to protect the ball screw against contamination by foreign matters. In case of grease lubrication, the ball screw should be cleaned by carefully wiping away all used grease, dust and dirt by means of a clean, dry cloth. If possible, move the several times over the full travel to ensure that as much old grease as possible comes out of the. Do not use any detergents or other cleaning fluids, such as trichlorethylene, alcohol or acetone. Grease re-lubrication: Wipers None Labyrinth seals Lubrication Interval 2 months or 00 hours months or 00 hours Contact wiper 4 months or 0 hours Table Application Klüber Grease Felt or combination wipers months or 00 hours Normal operation Klueber Staburags NBU EP Low friction High temperature Low temperature Vacuum Klueber Isoflex LDS 1 Spezial A Klueberalpha BHR -402 Klueber Isoflex PDL 00 A Klueber Barrierta L/2 If washing of the ball screw is necessary, do not remove the. Only clean benzine may be used for washing, and the ball screw must be dried with compressed air carefully afterwards. Move the several times and blow all remaining liquid away. After cleaning, apply a thin layer of fresh grease over the entire surface of the screw. If available, refill the through the lube hole with approx. 0,2 ccm of grease. Do not overfill, as this will cause overheating of the grease. Special Applications/ Vacuum/Clean Room For special applications, where further attention to the ball screw is not possible, a grease package for service life lubrication is available on request. Operation of a ball screw with short oscillating movement forward and backward requires further attention regarding lubrication. Please consult our engineers. For operation under extreme environmental conditions, such as temperatures below -20 C, above 0 C, under vacuum (pressure below -9 bar), with exposure to radiation, under clean room conditions, or even in space environment, please consult our engineers. If dry lubrication is required, special coatings are available. Please contact us for recommendations. After re-lubrication, the screw should be operated at low speeds and low loads first to ensure that all contact surfaces of, balls and screw are covered with a grease film. 12 1

10 Mounting Methods Alignment and Squareness Mounting a Ball Screw Miniature ball screws usually will be supported using thrust bearings on one end, or by using one deep groove ballbearing on each end, which are preloaded against each other. In this case use ballbearings with increased backlash, in order to provide a better contact angle after backlash elimination. For applications with larger forces, it is recommended to use angular contact ballbearings. The following ball screw bearing examples show possible solutions for supporting our standard miniature ball screws. Mounting Tolerances Steinmeyer recommends not to exceed out-of-center tolerances and squarenesses as specified below. Optimum parallelism of the ball screw axis and the guideways, as well as squareness of the s mounting surface, is most important not to overload the ball. After assembly, make sure that the ball screw rotates freely even with the in the closest position possible to the bearings. Any misalignment may lead to premature failure of the ball screw. According to fig..1, the bushing holding the outer ring on one end of the assembly should be fixed by clamping or any other appropriate method to ensure proper alignment. Preload forces for backlash elimination should be applied manually or by incorporating spring action. Excessive preload forces must be avoided carefully, as this might compromise smoothness of the entire assembly. Tilt Error Fig. A B Fig A - B T A - B T 0.0 A - B T Out of Center Line Fig. 9 A B Fig A - B T A - B T 0.0 A - B T Mounting tolerances: T 1 - : preloaded ground execution T : preloaded rolled execution T : ball screws with backlash 14 1

11 Mounting Methods Ordering Information Preloading Systems Fig. P P P For miniature ball screws Steinmeyer uses two different systems for preloading to meet all requirements. Basically, preload serves to eliminate backlash and to increase stiffness. Since the preload also affects the friction torque and represents at the same time a load that has to be accounted for service life aspects, it needs to be controlled accurately. Single s are available either with backlash or preloaded by ball oversize in three different type of s. As preloaded single s always use a fourpoint contact between balls and ball race, the efficiency is reduced slightly compared to s with two-point contact. However, this design offers a good cost/performance ratio and allows economic solutions. The Steinmeyer ball return system, optimized for this purpose, does not need any spacer balls to improve smoothness. Fig. 1 Standard product no Standard w/ custom screw no yes yes see pages 1-49 refer to standard product for technical data. Provide drawing for screw Give item-no., i.e. Custom product no. will be composed similar to the example above, with additional ident no., i.e. Preloaded Accuracy grade 9 mm Threaded length mm Nominal diameter 12 mm Lead 2 mm Nut style Fig. 11 Especially for miniature ball screws Steinmeyer has developed a spring loaded double to meet most demanding requirements of low torque along with high accuracy in position. For technical details see our 1 / 10 series. To determine, in which application this design will offer advantages, see Fig. 12 below. custom w/ custom screw yes Provide technical data req`d and drawing for and screw Preloaded Accuracy grade 2 mm Threaded length 24 mm Nominal diameter mm Lead 2 mm Specific ident no. Nut style Fig. 12 no Backlash-free operation reqd. with low and constant friction torque? yes Length / dia - ratio >= 40? yes Determine the standard preload F pr Fig. 14 Ball screw with flange and internal ball return ( circuits) no Fi <= 0. x F pr? yes no no Determine the maximum preload setting F pr max Fi <= 0. x F pr max? yes Fig. 1 Ball screw with end cap with flange (2+2 circuits) Single execution Spring preloaded Double execution 1 1

12 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1412, 1214, 1112 Screw Type A Stroke 0 90 Ø2h 4 Ø2h Flange 1412 Series 1412: Nut with flange and standard wipers both ends Cylindrical 1214 Series 1214: Cylindrical Nut with connecting thread 1112 Series 1112: Nut with connecting thread Precision Ball Screws Nominal Diameter mm Stroke Mx0. Ø4.h Specifications Nut with backlash Nut backlash-free size lead nom. number ball dyn. load stat. load of circ. capacity 0a capacity C backl. torque backl. torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] 0,..0, , Øg Ø wrench flat Nuts shown in standard orientation. Select one from table. L LF Ø D Flange 1412 Cylindrical 1214 Nut w. connect. thread 1112 length length length length LF D1g L LZ DZ h LA DA [mm] LZ DZ M LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Precision Ball Screws 1 19

13 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1 Screw Type A Stroke 4 90 Ø2h 4 Ø2h Spring preloaded double in housing with connecting thread 1 Series 1: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter mm Stroke wrench flat M Specifications Spring preloaded double in housing with connecting thread 1 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] 0,..0, , Mx0. Ø4.h Øg Ø9. LD preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] DD Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is factory-set to F pr max and cannot be increased. The maximum permissible load of F max cannot be exceeded. Precision Ball Screws 20 21

14 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1412 / 2422, 1214, 1112 Screw Type A Stroke Øh 14 Øh Flange Series 1412 / 2422: Nut with flange and standard wipers both ends Nut type 2422 only Cylindrical 1214 Series 1214: Cylindrical Nut with connecting thread 1112 Series 1112: Nut with connecting thread Precision Ball Screws Nominal Diameter mm Stroke Mx0. Ø4.h Specifications Nut with backlash Nut backlash-free 0,..0, , , Øg Ø9. 1. wrench flat Nuts shown in standard orientation. Select one from table. size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] L LF D1 12 Ø LZ DZ Mx1 for pin wrench Ø2 Flange 1412/ 2422 Cylindrical 1214 Nut w. connect. thread 1112 length length length length LF D1g L LZ DZ h LA DA [mm] LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. 22 Precision Ball Screws 2

15 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1 Screw Type A Stroke Øh 14 Øh Spring preloaded double in housing with connecting thread 1 Series 1: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter mm Stroke Specifications Mx0. Ø4.h. Øg Ø9. 1. size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] 0,..0, , , wrench flat Mx1 LD DD Spring preloaded double in housing with connecting thread 1 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is factory-set to F pr max and cannot be increased. The maximum permissible load of F max is around 0-0 % of the preload. Precision Ball Screws 24 2

16 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1412 / 2422, 1214, 1112 Screw Type A Stroke Øh 1 Øh Flange Series 1412 / 2422: Nut with flange and standard wipers both ends Nut type 2422 only Cylindrical 1214 Series 1214: Cylindrical Nut with connecting thread 1112 Series 1112: Nut with connecting thread Precision Ball Screws Nominal Diameter mm Stroke Øh Mx1 Øg Ø wrench flat 0,..0, , , , ,..1, , , , Ø.x0. Nuts shown in standard orientation. Select one from table. Specifications Nut with backlash Nut backlash-free size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] Øg L LF Ø D LZ DZ M14x1 for pin wrench Ø Flange 1412/ 2422 Cylindrical 1214 Nut w. connect. thread 1112 length length length length LF D1g L LZ DZ h LA DA [mm] LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Alternate design. Quote number of circuits when ordering. 2 Precision Ball Screws 2

17 Nominal Diameter mm Ground execution with standard bearing journal Outer Diameter h Series 1 Screw Type A Stroke Øh 1 Øh Spring preloaded double in housing with connecting thread 1 Series 1: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter mm Stroke Specifications 9 1 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] 0,..0, , , ,..1, Øh Mx1 Øg Ø11. 4 wrench flat 9 Ø.x0. Øg M14x1 4. wrench flat 1 LD DD Spring preloaded double in housing with connecting thread 1 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is set to F pr max or at a minimum of 20 N. If F max is higher than 20 N the preload can be set at the factory up to F pr max. The maximum permissible load of F max is around - 0 % of the preload. Precision Ball Screws 2 29

18 Nominal Diameter 12 mm Ground execution with standard bearing journal Outer Diameter 11.h Series 1412 / 2422, 1214, 1112 Screw Type A Stroke 00 9 Øh Mx0. Øh 22 Øh Flange Series 1412 / 2422: Nut with flange and standard wipers both ends Nut type 2422 only Cylindrical 1214 Series 1214: Cylindrical (with keyway) Nut with connecting thread 1112 Series 1112: Nut with connecting thread Precision Ball Screws Nominal Diameter 12 mm Stroke Øh Mx1 Øg Ø wrench flat 12 Specifications Nut with backlash Nut backlash-free , , , , Nuts shown in standard orientation. Select one from table. size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] Ø.x0.9 Øg L LF D1 Ø4. D1-0. D L9 D4 D M1x1 for pin wrench Ø Flange 1412/ 2422 Cylindrical 1214 Nut w. connect. thread 1112 hole flange length flange length PCD width length length LF D1g D4 D L L9 LZ DZ h LP LA DA [mm] [mm] LP 1 (P=2:12) LZ DZ keyway 1.9 dp LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Alternate design. Quote number of circuits when ordering. 0 Precision Ball Screws 1

19 Nominal Diameter 12 mm Ground execution with standard bearing journal Outer Diameter 11.h Series 1 Screw Type A Stroke 00 9 Øh Mx0. Øh 22 Øh Spring preloaded double in housing with connecting thread 1 Series 1: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter 12 mm Stroke Specifications 1 20 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] , , Øh Mx1 Øg Ø14 wrench flat 12 Ø.x0.9 Øg M1x1. wrench flat 22 LD DD Spring preloaded double in housing with connecting thread 1 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is set at a minimum of 0 N and can be set at the factory to F pr max. The maximum permissible load of F max is around 0 - % of the preload. Precision Ball Screws 2

20 Nominal Diameter 1 mm Ground execution with standard bearing journal Outer Diameter 1.h Series 1412 / 2422, 1214, 1112 Screw Type A Stroke Øh M12x1 Ø12h Ø12h Flange Series 1412 / 2422: Nut with flange and standard wipers both ends Nut type 2422 only Cylindrical 1214 Series 1214: Cylindrical (with keyway) Nut with connecting thread 1112 Series 1112: Nut with connecting thread Precision Ball Screws Nominal Diameter 1 mm Stroke Øh M12x1 wrench flat 12 Ø12g Ø Specifications Nut with backlash Nut backlash-free 2.1.1, , , , , , Nuts shown in standard orientation. Select one from table. size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] 22 Ø9.x1.1 Øg Mx0, 12 dp L 1 LF D1 Ø. D1-0. D L9 lube hole M 0 D4 D LP 1 LZ DZ keyway 1.9 dp M22x1 LA for pin wrench Ø Flange 1412/ 2422 Cylindrical 1214 Nut w. connect. thread 1112 hole flange length flange length PCD width length length LF D1g D4 D L L9 LZ DZ h LP LA DA [mm] [mm] DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Alternate design. Quote number of circuits when ordering. 4 Precision Ball Screws

21 Nominal Diameter 1 mm Ground execution with standard bearing journal Outer Diameter 1.h Series 1 Screw Type A Stroke Øh M12x1 Ø12h Ø12h Spring preloaded double in housing with connecting thread 1 Series 1: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter 1 mm Stroke Øh M12x1 Ø12g Ø wrench flat 12 Specifications Spring preloaded double in housing with connection connecting thread 1 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] 2.1.1, ,.1.1, , Ø9.x1.1 Øg Mx0, 12 dp M22x1. wrench flat 0 LA preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is set at a minimum of 40 N and can be set at the factory to F pr max. The maximum permissible load of F max is around 0 - % of the preload. Precision Ball Screws

22 Nominal Diameter mm Rolled execution with standard bearing journal Outer Diameter h Series 142 / 2442, 124, 112 Spindelwellen Screw Type A A Stroke Øh 1 Øh Flange Series 142 / 2442: Nut with flange and standard wipers both ends Nut type 2442 only Cylindrical 124 Series 124: Cylindrical Nut with connecting thread 112 Series 112: Nut with connecting thread Precision Ball Screws Nominal Diameter mm Stroke Øh Mx1 Øg Ø wrench flat , , ,..1,. 2, , , , Ø.x0. Nuts shown in standard orientation. Select one from table. Specifications Nut with backlash Nut backlash-free size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] Øg L LF Ø D LZ DZ M14x1 for pin wrench Ø Flange 142/ 2442 Cylindrical 124 Nut w. connect. thread 112 length length length length LF D1g L LZ DZ h LA DA [mm] LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Alternate design. Quote number of circuits when ordering. Precision Ball Screws 9

23 Nominal Diameter mm Rolled execution with standard bearing journal Outer Diameter h Series 10 Screw Type A Stroke Øh 1 Øh Spring preloaded double in housing with connecting thread 10 Series 10: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter mm Stroke Specifications 9 1 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] , ,..1, Øh Mx1 Øg Ø11. 4 wrench flat 9 Ø.x0. Øg M14x1 4. wrench flat 1 LD DD Spring preloaded double in housing with connecting thread 10 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is factory-set to F pr max and can be reduced to a minimum of 20 N. The maximum permissible load of F max is around - 0 % of the preload. Precision Ball Screws 40 41

24 Nominal Diameter 12 mm Rolled execution with standard bearing journal Outer Diameter 11.h Series 142 / 2442, 124, 112 Spindelwellen Screw Type A A Stroke 00 9 Øh Mx0. Øh 22 Øh Flange Series 142 / 2442: Nut with flange and standard wipers both ends Nut type 2442 only Cylindrical 124 Series 124: Cylindrical (with keyway) Nut with connecting thread 112 Series 112: Nut with connecting thread Precision Ball Screws Nominal Diameter 12 mm Stroke Øh Mx1 Øg Ø wrench flat 12 Specifications Nut with backlash Nut backlash-free , , , Nuts shown in standard orientation. Select one from table. size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] Ø.x0.9 Øg L LF D1 Ø4. D1-0. D L9 D4 D M1x1 for pin wrench Ø Flange 142/ 2442 Cylindrical 124 Nut w. connect. thread 112 hole flange length flange length PCD width length length LF D1g D4 D L L9 LZ DZ h LP LA DA [mm] [mm] LP 1 (P=2:12) LZ DZ keyway 1.9 dp LA DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. Alternate design. Quote number of circuits when ordering. 42 Precision Ball Screws 4

25 Nominal Diameter 12 mm Rolled execution with standard bearing journal Outer Diameter 11.h Series 10 Screw Type A Stroke 00 9 Øh Mx0. Øh 22 Øh Spring preloaded double in housing with connecting thread 10 Series 10: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter 12 mm Stroke Specifications 1 20 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] , Øh Mx1 Øg Ø14 wrench flat 12 Ø.x0.9 Øg M1x1. wrench flat 22 LD DD Spring preloaded double in housing with connecting thread 10 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is factory-set to F pr max and can be reduced to a minimum of 0 N. The maximum permissible load of F max is around 0 - % of the preload. Precision Ball Screws 44 4

26 Nominal Diameter 1 mm Rolled execution with standard bearing journal Outer Diameter 1.h Series 142 / 2442, 124, 112 Spindelwellen Screw Type A A Stroke Øh M12x1 Ø12h Ø12h Flange Series 142 / 2442: Nut with flange and standard wipers both ends Nut type 2442 only Cylindrical 124 Series 124: Cylindrical (with keyway) Nut with connecting thread 112 Series 112: Nut with connecting thread Precision Ball Screws Nominal Diameter 1 mm Stroke Øh M12x1 wrench flat 12 Ø12g Ø Specifications Nut with backlash Nut backlash-free 2.1.1, , , , , , Nuts shown in standard orientation. Select one from table. size lead nom. number of circ. ball dyn. load stat. load capacity capacity backl. C 0a backl. torque torque P d N C a T 0 T pr0 [mm] [mm] i [mm] [N] [N] [mm] [N cm] [mm] [N cm] 22 Ø9.x1.1 Øg Mx0, 12 dp L 1 LF D1 Ø. D1-0. D L9 lube hole M 0 D4 D LP 1 LZ DZ keyway 1.9 dp M22x1 LA for pin wrench Ø Flange 142/ 2442 Cylindrical 124 Nut w. connect. thread 112 hole flange length flange length PCD width length length LF D1g D4 D L L9 LZ DZ h LP LA DA [mm] [mm] DA Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life Alternate design. Quote number of circuits when ordering. 4 Precision Ball Screws 4

27 Nominal Diameter 1 mm Rolled execution with standard bearing journal Outer Diameter 1.h Series 10 Screw Type A Stroke Øh M12x1 Ø12h Ø12h Spring preloaded double in housing with connecting thread 10 Series 10: Spring preloaded double in housing with connecting thread without wipers Precision Ball Screws Nominal Diameter 1 mm Stroke Specifications Øh M12x1 Ø12g Ø wrench flat 12 size lead nom. number of circ. ball dyn. load stat. load capacity capacity C 0a P d N C a [mm] [mm] i [mm] [N] [N] 2,.1.1, , Ø9.x1.1 Øg Mx0, 12 dp M22x1. wrench flat 0 LA DA Spring preloaded double in housing with connecting thread 10 preload torque length load LD DD Fpr max F max T pr0 [N] [N] [Ncm] [mm] [mm] Dynamic load capacity C a : permissible dynamic load resulting in 1 rev. service life. The preload is factory-set to F pr max and can be reduced to a minimum of 40 N. The maximum permissible load of F max is around 0 - % of the preload. Precision Ball Screws 4 49

28 Steinmeyer Precision Ball Screws worldwide Germany (headquarters) August Steinmeyer GmbH & Co. KG Riedstraße 24 Albstadt Phone Fax USA Steinmeyer Inc. 11 DeAngelo Drive Bedford, MA 010 Phone Fax Toll-free

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30 B2001.1/0.0/1/Printed in Germany