NSK Ball Screws for High-Load Drive

Transcription

1 TAC Seies of all Scew Suppot eaings fo High-Load Applications NSK Rolle Guide RA Seies We have developed easy-to-use ball scews fo high-load applications and now offe a wide vaiety of poducts suited fo high-load dives. These ball scews enable the electic sevo dive to opeate unde the most sevee conditions.

2 Lineup of NSK all Scews fo High-Load Dive est suited design fo high-load applications The best aangement of the ball eciculation cicuits and use of the lagest possible ball have significantly contibuted to the enhancement of high-load beaing chaacteistics. (Refe to pages and fo details.) HTF-SRC Type Enables a maximum speed of 0 mm/s with fine scew leads. P P 6 HTF-SRD Type Enables a maximum speed of 0 mm/s with coase scew leads. P 7 P HTF-SRD Type Povides a wide ange of scew diamete and lead combinations (scew diametes of to 00 mm and leads of to mm). P P Lead, mm 5 HTF-SRC Type Equipped with Gease Retaining A Seals Optimized design of A seal enables supeio gease etaining pefomance. P P 8 HTF-ASRC Type HTF-ASRD Type 6 00 Shaft dia., mm

3 HTF-SRC Type HTF-SRC Type Specifications Reciculation system: Equipped with SRC (Smooth Retun Coupling) The new ball eciculation system incopoates an end deflecto. It picks up balls in the diection they ae moving, thus contibuting to moe than twice the feed speed and less than half the noise level compaed with those of the existing ball scews equipped with a etun tube. High-speed pefomance two times geate than existing poducts Accuacy gade Ct7 of JIS () is applicable as the standad accuacy gade. Axial play Standad axial play: 0.00 mm o less, o 0.0 mm o less Noise educed by 6 d (A) o moe compaed with etun tube type Smoothly picks up balls in the diection they ae moving. Picks up balls, focibly changing thei diection. Othe Please consult NSK fo special equests. Examples: Add a eciculation cicuit to incease the load capacity. Position all eciculation cicuits on the same phase of ball nut cicumfeence. Allowable d n value and feed speed Allowable feed speed of combinations of shaft diamete and lead Shaft dia. 6 Lead SRC type Lead and mm: o less Lead 0 and 5 mm: 000 o less d n: Shaft diamete d Rotational speed n (min ) Existing etun tube type 7 0 Unit: mm/s Design ) When designing the shaft ends, one end of the scew shaft must meet one of the following conditions. If not, we cannot install the ball nut on the scew shaft. The ball goove is cut though to the shaft end. The diametes of beaing jounals and the gea o pulley seat must be less than the oot diamete of ball goove d specified on the dimension table. ) Please consult NSK with you special design equiements. Selection Pecautions of all Scew Please efe to pages and 4 fo details on the opeating life of the ball scew and instuctions on installation and lubication. Please consult NSK in the case of a shot stoke opeation less than o equal to fou times the length of the ball scew lead Opeating Tempeatue Maximum opeating tempeatue: C (at outside diamete of ball nut) 4

4 HTF-SRC Type HTF-SRC Type Outline dawing 4-φ X dill PCD W φ D φ D φ Dh (encompasses potuding pat) T T T M T T T T M L L HTF-SRC Type Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating Dynamic C a all nut dimensions Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC HTF-SRC Ⅰ HTF-SRC Ⅱ HTF-SRC Ⅰ HTF-SRC Ⅱ Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK. 4. The ight hand scew is the standad. Fo specifications on left hand scews, contact NSK. 5 6

5 HTF-SRD Type HTF-SRD Type Specifications Reciculation system: Equipped with end deflecto Used with well accepted end deflectos, HTF-SRD type ball scews achieve the maximum feed speed of 0 mm/s. The ball nut body suface is completely ound, thus enabling well balanced ball nut otation. High-lead specification optimal fo high speed Accuacy gade Ct7 of JIS () is applicable as the standad accuacy gade. Axial play Standad axial play: 0.00 mm o less, o 0.0 mm o less Noise educed by 6 d (A) o moe compaed with etun tube type Smoothly picks up balls in the diection they ae moving. Picks up balls, focibly changing thei diection. Seal The ball nut length is shotened by the use of thin seals. Othes Please consult NSK fo infomation on nut otation. Allowable d n value and feed speed Shaft dia. 6 Lead End deflecto type d n: 000 o less d n: Shaft diamete d Rotational speed (min - ) Allowable feed speed of combinations of shaft diamete and lead Existing etun tube type Unit: mm/s Design Pecautions ) When designing the shaft ends, one end of the scew shaft must meet one of the following conditions. If not, we cannot install the ball nut on the scew shaft. The ball goove is cut though to the shaft end. The diametes of beaing jounals and the gea o pulley seat must be less than the oot diamete of ball goove d specified on the dimension table. ) Please consult NSK with you special design equiements. Selection of all Scew Please efe to pages and 4 fo details on the opeating life of the ball scew and instuctions on installation and lubication. Please consult NSK in the case of a shot stoke opeation less than o equal to fou times the length of the ball scew lead. 4 Opeating Tempeatue Maximum opeating tempeatue: C (at outside diamete of ball nut) 7 8

6 HTF-SRD Type HTF-SRD Type Outline dawing - T φ X dill PCD W φ D L H HTF-SRD Type Specifications Model No. Lead Shaft dia. d Root dia. asic load ating Dynamic Static all nut dimensions D A L H W X Q d C a C 0a T Allowable axial load Fa max. HTF-SRD6-4E HTF-SRD-6E HTF-SRD-8E HTF-SRD6-6E HTF-SRD6-8E HTF-SRD-6E HTF-SRD-8E Remaks:. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The ight hand scew is the standad. Fo specifications on left hand scews, contact NSK.. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK.

7 Specifications Design Pecautions Reciculation system: all etun tube Allowable d n value and feed speed Lead and allowable d n value Lead Standad High-speed 0 mm o less 000 o less o less Allowable feed speed of combinations of shaft diamete and lead Shaft dia Lead 5 mm 000 o less to mm 000 o less 0 d n: Shaft diamete d Rotational speed (min - ) Unit: mm/s 0 ) When designing the shaft ends, one end of the scew shaft must meet one of the following conditions. If not, we cannot install the ball nut on the scew shaft. The ball goove is cut though to the shaft end. The diametes of beaing jounals and the gea o pulley seat must be less than the oot diamete of ball goove d specified on the dimension table. ) Please consult NSK with you special design equiements. Selection Please efe to pages and 4 fo details on the opeating life of the ball scew and instuctions on installation and lubication. Please consult NSK in the case of a shot stoke opeation less than o equal to fou times the length of the ball scew lead. 4 Opeating of all Scew Tempeatue Maximum opeating tempeatue: C (at outside diamete of ball nut) Accuacy gade Ct7 of JIS () is applicable as the standad accuacy gade. Axial play Standad axial play: 0.00 mm o less, o 0.0 mm o less Othes Please consult NSK fo special equests. Examples: Add a eciculation cicuit to incease the load capacity. Position all eciculation cicuits on the same phase of ball nut cicumfeence.

8 Outline dawing 4-φ X dill PCD W 4-φ X dill PCD W φ Dg6 φ Dg6 φ Dg6 φ Dh (encompasses potuding pat) φ Dh (encompasses potuding pat) T L T M T T T M T T T T L L M Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating all nut dimensions Dynamic C a Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF-5 HTF6-5 HTF-7.5 HTF HTF45- HTF-7.5 HTF- HTF-7.5 HTF- HTF6-5 HTF-7.5 HTF HTF-7.5 HTF- HTF-7.5 HTF- HTF6-7.5 HTF Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK.

9 Outline dawing 4-φ X dill PCD W φ Dg6 φ Dg6 φ Dh (encompasses potuding pat) T T T M T T T T L L M Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating all nut dimensions Dynamic C a Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF-7.5 HTF-7.5 HTF6-7.5 HTF6- HTF-7.5 HTF- HTF-7.5 HTF-7.5 HTF6-7.5 HTF6- HTF6-.5 HTF6- HTF-7.5 HTF- HTF-.5 HTF- HTF0-7.5 HTF0- HTF-7.5 HTF Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK. 5

10 Outline dawing 4-φ X dill PCD W φ Dg6 φ Dg6 φ Dh (encompasses potuding pat) T T T M T T T T L L M Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating all nut dimensions Dynamic C a Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF-7.5 HTF- HTF-.5 HTF0-7.5 HTF0- HTF0-.5 HTF HTF00- HTF00-.5 HTF00- HTF0-7.5 HTF0- HTF0-.5 HTF0- HTF-7.5 HTF Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK.

11 Outline dawing 4-φ X dill PCD W φ Dg6 φ Dg6 φ Dh (encompasses potuding pat) T T T M T T T T L L M Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating all nut dimensions Dynamic C a Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF5-7.5 HTF HTF05- HTF05-.5 HTF05- HTF5-7.5 HTF5- HTF5-.5 HTF5- HTF5-7.5 HTF5- HTF5-.5 HTF5- HTF HTF Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK. 0

12 Outline dawing 4-φ X dill PCD W φ Dg6 φ Dg6 φ Dh (encompasses potuding pat) T T T M T T T T L L M Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits asic load ating all nut dimensions Dynamic C a Static C 0a D A L M W X U V Dh Q T T Allowable axial load Fa max. HTF-7.5 HTF- HTF-.5 HTF HTF00- HTF00-.5 HTF HTF000- HTF-7.5 HTF- HTF-.5 HTF0-7.5 HTF0- HTF0-.5 HTF HTF Remaks:. The ball nut length with no seals is shote by M than that of a ball nut with seals.. Please consult NSK if load exceeds the allowable axial load (Fa max.).. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK.

13 HTF-ASRC Type and HTF-ASRD Type HTF-ASRC Type and HTF-ASRD Type Equipped with Gease Retaining A Seal Specifications Equipped with gease etaining A seal The optimum design of the A seal (patent applied fo and pending) allows supeio gease etaining pefomance. Reciculation system: Equipped with SRC o end deflecto These ball scews ae used with the SRC o the end deflecto eciculation system, which pick up balls smoothly in the diection they ae moving. Smoothly picks up balls in the diection they ae moving. Smoothly picks up balls in the diection they ae moving. Accuacy gade Ct7 of JIS () is applicable as the standad accuacy gade. Axial play Standad axial play: 0.0 mm o less Design Pecautions ) When designing the shaft ends, one end of the scew shaft must meet one of the following conditions. If not, we cannot install the ball nut on the scew shaft. Cut the ball goove though to the shaft end. The diametes of beaing jounals and the gea o pulley seat must be less than the oot diamete of ball goove d specified on the dimension table. ) The table below shows the maximum length of scew shaft fo the equipment of the A seal. ) Please contact NSK with you special design equiements. Unit: mm Shaft dia. Max. shaft length 8 SRC type End deflecto type 6 0 Allowable d n value and feed speed Lead mm: o less Lead 0 and 5 mm: 000 o less Lead, and mm : 000 o less d n: Shaft diamete d Rotational speed (min - ) Allowable feed speed of combinations of shaft diamete and lead Shaft dia. 6 0 Lead HTF-ASRC type HTF-ASRD type 0 Unit: mm/s Selection 0, of all Scew Please efe to pages and 4 fo details on the opeating life of the ball scew and instuctions on installation and lubication. Please consult NSK in the case of a shot stoke opeation less than o equal to fou times the length of the ball scew lead. 4 Envionmental Conditions 00 Maximum opeating tempeatue: C (at outside diamete of ball nut) Neve use in an envionment whee degeasing solvents ae pesent. Examples: white keosine, ust peventive oil (containing white keosine) 4

14 HTF-ASRC Type HTF-ASRC Type Outline dawing 4-φ X dill S S -Gease etaining A seal S S -Gease etaining A seal E E φ D φ D PCD W φ Dh (encompasses potuding pat) -Oil hole Q -Dain hole S 4-Oil hole Q -Dain hole S T T T T T T T L L HTF-ASRC Type Specifications Model No. Lead Shaft dia. d Root dia. d Effective ball tuns Tuns Cicuits Nut model asic load ating Dynamic C a all nut dimensions Static C 0a D A L W X U V Dh Q T T S E S S Allowable axial load Fa max. HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/4 5. HTF-ASRC Rc/ HTF-ASRC Rc/ HTF-ASRC Rc/4 5.0 HTF-ASRC Rc/ Remaks:. Dain holes ae plugged duing shipping.. The ight hand scew is the standad. Fo specifications on left hand scews, contact NSK.. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK. 4. Connect a gease dain pipe to dain hole S befoe use of the ball scew. 5 6

15 HTF-ASRD Type HTF-ASRD Type Outline dawing T T -Gease etaining A seal -Oil hole Q 6-φ X dill PCD W H φ D S S L -Dain hole S φ counteboe depth 0 0 HTF-ASRD Type Specifications Model No. Lead Shaft dia. d Root dia. d asic load ating Dynamic C a Static C 0a D A L H all nut dimensions W X Q T T S S S Allowable axial load Fa max. HTF-ASRD6-4E Rc/ HTF-ASRD-6E Rc/ HTF-ASRD-8E Rc/ HTF-ASRD6-6E Rc/ HTF-ASRD6-8E Rc/ HTF-ASRD-6E Rc/ HTF-ASRD-8E Rc/ Remaks:. Dain holes ae plugged duing shipping.. The ight hand scew is the standad. Fo specifications on left hand scews, contact NSK.. The allowable axial load (Fa max.) is detemined in accodance with the mounting conditions of ball scews ecommended by NSK. Refe to page 4 fo the mounting conditions. If you mounting conditions diffe fom those povided, please consult NSK. 4. Connect a gease dain pipe to dain hole S befoe use of the ball scew. 7 8

16 Technical Desciption Technical Desciption Injection Examples of Application Resin Retaining Piece NSK S 4A moment load caused by misalignment of a ball scew can hinde smooth motion of the balls, thus causing ball Reciculation system Application Retun tube type molding machine Die cast machine Sevo pess Pess bake Punch pess Powde pess ending machine Pess fitting machine Elevating machine jamming in the ball eciculation cicuits and advesely affecting the duability of the ball scew. y incopoating the esin etaining piece NSK S between balls, NSK has geatly impoved the duability of ball scews unde a moment load. SRC type End deflecto type = Excellent, = Good Shaft End Configuation A vaiety of shaft end configuations ae available fo high toque tansmission. Conventional NSK S Examples of suppoted foms Involute splines (JIS 0) Staight-sided splines (JIS 0) Keyways Duability test with continuous high load Test model: HTF All load balls (without S), and with S Low Noise With the new ball eciculation system, SRC and end deflecto types achieve a noise eduction of 6- d(a) compaed with the tube type. 0 Test conditions: Load condition: Fowad 00 kn, ack 0 kn Stoke: mm, Cycle time: sec Lubication: Gease Tempeatue: Nomal Noise Pessue Level, d(a) 0 SRC type End deflecto type Conventional tube type Mounting eo: Max. 0.0 mm 0. mm 0. mm Oute suface of balls.e+0.5.e+0.6.e+0.7 Dw dm n All load balls: vey good (afte cycles) All load balls: damaged (afte 000 cycles) With S: vey good (afte cycles) 0

17 Technical Desciption NSK all Scews fo High-Load Dive Technical Desciption 5 Theoy of even load distibution (applies to SRC and etun tube types) Layout of ball etun tubes is symmetically designed in axial diection to be effective fo moment balance. Even Load Distibution Technology in all Nut Japan patents: 675, 7, 75, & 446 < cicuits> <4 cicuits> Radially =, Moment = Radially =, Moment = Radially = Radially = Theoy of even load distibution (applies to SRC and etun tube types) all etun tubes ae located degees apat fo equal load distibution to the balls. Conventional design Minimum diffeence between uppe and lowe balls HTF design 4 tuns Diffeence: tuns Conventional design, Moment =, Moment = 6 tuns Theoy of even load distibution (applies to all seies) 5 tuns Diffeence: 0 tuns HTF design Acting point of load is to be at opposite ends of scew shaft and ball nut, shown below as case (A), in ode to balance the axial defomation. 5 tuns (A) F () F Load distibution to balls Load distibution Effect of nut defomation (shaft is igid) Conventional design Effect of shaft defomation (nut is igid) HTF design - + = = Load on balls, kn 4 0 Axial position of balls, mm Combination

18 Technical Desciption Technical Desciption Life of all Scew 6Computational life, which is estimated by calculation, is the flaking life caused by olling contact fatigue. The fatigue life of a ball scew can be estimated by basic dynamic load ating (Ca). Mounting of ball scew NSK ball scews fo high-load dive achieve high capacity by special intenal design exclusively fo high-load use and the theoy of even load distibution. To maximize these benefits, it is ecommended to mount the ball scew as shown below. Do not apply extenal tension foce to the bolts. If bolts eceive tension foce, the stength of bolts must be checked. Recommended mounting diection asic dynamic load ating (Ca) asic dynamic load ating (Ca) is the axial load that allows 0% of a goup of the same ball scews to otate one million times ( 6 ev) unde the same conditions without flaking occuing due to olling contact fatigue. asic dynamic load atings (Ca) ae shown in the dimension tables. acket Fixed suppot beaing, moto side How to calculate fatigue life The fatigue life of a ball scew is obtained by the following fomula. Moto Main extenal load L = Ca Fa fw 6 L: Rated fatigue life (ev) Lt: Life in hous (h) Ls: Life by unning distance (km) Lt = Ls = L n L l 6 Ca: asic dynamic load ating (N) Fa: Axial load (N) n: Rotational speed (min - ) l: Lead fw: Load facto* Pecautions fo lubication use When using the ball scew, it is necessay to supply lubication. Even if the gease is of high quality, it gadually deteioates and its lubication function diminishes in elation to the peiod of use. Also, the gease in the ball nut is gadually emoved by stoke movement. In some envionments, the gease becomes dity, and foeign objects may ente. Gease should be eplenished peiodically. (Fo a high-load application, we ecommend the use of a high-load gease with an exteme pessue additive.) *The load facto is decided by opeating conditions. Consult NSK when impact and/o vibations occu duing the opeation. 4

19 Technical Desciption Technical Desciption Gease Retaining A Seal 7Geatly impoved gease etaining pefomance Low fiction toque and low-heat geneation The incease of dynamic toque caused by the A seal is vey small (0 to Ncm in case of ball scew with -mm diamete). This level of incease has pactically no impact on the diving toque. The pactical tempeatue ise caused by the A seal is meely to C highe than that of existing plastic seals. Thanks to the special ball goove pofile of the scew shaft togethe with the gease etaining A seal, the gease etaining chaacteistics have geatly impoved compaed with those of existing plastic seals. Gease leakage at initial cycle opeation (Test piece: HTF-ASRC6-.5 with high-load gease with an exteme pessue additive [woked penetation: 00]) Constuction of ball scew equipped with gease etaining A seal alls all etaining piece NSK S Gease etaining A seal With gease etaining A seals With conventional labyinth seals Suppesses gease scatteing and peseves a clean envionment Use of the A seal geatly suppesses gease scatteing, showing a significant impovement ove the use of existing plastic seals. The A seal simplifies the design of you cove, helping to peseve a clean and healthy envionment. Gease splash afte 0-cycle opeation Test conditions Test piece HTF-ASRC6-.5 Speed 0 min Stoke 0 mm Lubication High-load gease with an exteme pessue additive Afte initial un of 0 cycles at 00 min, gease was wiped off fom shaft OD, then photos wee taken at the speed of 00 min. Gease dain hole When eplenishing gease, old gease is dischaged hee. all scew shaft with special goove pofile With gease etaining A seals (stoke cente aea) With existing plastic seals (stoke cente aea) 5 6

20 Technical Data sheet Technical Data sheet Technical Data Sheet fo NSK High-Load Dive all Scew Custom-made ball scew Company name: Section: Addess: Date: Peson in chage: Name of machine* : Electic injection molding machine; 0-ton capacity Application* : Dawing/ough sketch attached?: Yes No * Please specify capacity of the machine in case of injection molding machine o pess. * If the application is injection molding machine, please indicate the axis. (Examples: injection axis and clamping axis). Use conditions Opeating conditions Shaft otation Moving nut Shaft otation Moving shaft Nut otation Moving nut Nut otation Moving shaft Nomal opeation ack dive opeation Oscillation Diection C-C T-T T-C C-T othe of load* (Refe to figues below.) Lubicant Request fo oil hole Gease and name: High-load gease with an exteme pessue additive Degee of vibation / impact Mounting oientation Oil ( Make: ) How to eplenish NSK ecommended You equest lubicant NSK sales office Clamping axis Smooth opeation without impact Nomal opeation Opeation associated with impact o vibation Hoizontal Vetical (Indicate the diection of gavity.) Gease gun Automatic ( cm / cycles) Technical Data Sheet fo NSK High-Load Dive all Scew. Load chat (If using multiple ball scews in an axis, fill out the axial load pe ball scew.) Rotational speed N, min Speed V, mm/s Load F, kn ➀ ➁ ➂ ➃ Avg Time: t (s) Time: t (s) Necessity of seals Yes No NSK S necessay? NSK ecommended Not necessay Avg. 00 Envionment Tempeatue ( 4 0 deg) Suface teatment Quantity in mass-poduction Paticles / Yes (Size of paticle: a) to 0., b) ove 0. to 0., c) ove 0., d) Ingedient: ) No paticle Not equied Low-tempeatue chome plating Fluoide low-tempeatue chome plating Othe /Month /Yea /Lot Quantity used pe machine * Please specify loading diection code on the figues below. (Shaft fixed:, Main load: ) C-C (NSK ecommended). Specifications Shaft diamete No. Special note / Requests f 4 0 mm HTF -7.5-S Lead Effective tuns of balls T-T (NSK ecommended). 5 mm Accuacy gade Diection of tun C t 7 i g h t T-C Axial play P l e a s e c a l c u l a t e t h e l i f e a s a c o n t i n u o u s o p e a t i o n b a s e d o n. L o a d c h a t. Thead length / Oveall shaft length pcs./machine C-T 0.0 o less mm max / ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉ Dynamic axial load (max.)*: Stoke in nomal use: Cycle time: Rotational speed o Aveage speed N (min ) (s) V (mm/s) *If using multiple ball scews in an axis, fill out the axial load pe ball scew. Time t (s) Stoke St Static axial load (max.)* (at 0 mm/s): Maximum stoke: 4. Plan to conduct the enduance test of the ball scew? Actual data on the machine Axial load* F Yes Total: Total: ( mm) Remaks Requied life: ( h o cycles) N/A Planning to check enduance (Date: Fom the middle of Mach 008 ) No (Reason: ) Enduance of the ball scew () Mounting accuacy, load conditions, and lubicating conditions ae the main factos affecting the ball scew fatigue life. Theefoe, we ecommend evaluating the influence of those factos on actual use of you machines. () A tempeatue ise caused by opeational and envionmental conditions may educe the effectiveness of lubicant. 7 8

21 Technical Data sheet Technical Data sheet Technical Data Sheet fo NSK High-Load Dive all Scew Custom-made ball scew Company name: Section: Addess: Date: Peson in chage: Name of machine* : Application* : Dawing/ough sketch attached?: Yes No * Please specify capacity of the machine in case of injection molding machine o pess. * If the application is injection molding machine, please indicate the axis. (Examples: injection axis and clamping axis). Use conditions Opeating conditions Shaft otation Moving nut Shaft otation Moving shaft Nut otation Moving nut Nut otation Moving shaft Nomal opeation ack dive opeation Oscillation Diection C-C T-T T-C C-T othe of load* (Refe to figues below.) Lubicant Request fo oil hole Degee of vibation / impact Mounting oientation Gease and name: Oil ( Make: ) How to eplenish NSK ecommended You equest lubicant NSK sales office Smooth opeation without impact Nomal opeation Opeation associated with impact o vibation Hoizontal Vetical (Indicate the diection of gavity.) Gease gun Automatic ( cm / cycles). Load chat (If using multiple ball scews in an axis, fill out the axial load pe ball scew.) Rotational speed N, min Speed V, mm/s Load F, kn Technical Data Sheet fo NSK High-Load Dive all Scew Time: t (s) Time: t (s) Necessity of seals Yes No NSK S necessay? NSK ecommended Not necessay Envionment Tempeatue ( deg) Suface teatment Quantity in mass-poduction Paticles / Yes (Size of paticle: a) to 0., b) ove 0. to 0., c) ove 0., d) Ingedient: ) No paticle Not equied Low-tempeatue chome plating Fluoide low-tempeatue chome plating Othe /Month /Yea /Lot Quantity used pe machine * Please specify loading diection code on the figues below. (Shaft fixed:, Main load: ) C-C (NSK ecommended). Specifications Shaft diamete No. Special note / Requests f mm Lead Effective tuns of balls T-T (NSK ecommended) mm Accuacy gade Diection of tun T-C Axial play Thead length / Oveall shaft length pcs./machine C-T / mm max. ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉ Dynamic axial load (max.)*: Stoke in nomal use: Cycle time: Rotational speed o Aveage speed N (min ) (s) V (mm/s) *If using multiple ball scews in an axis, fill out the axial load pe ball scew. Time t (s) Stoke St Static axial load (max.)* (at 0 mm/s): Maximum stoke: 4. Plan to conduct the enduance test of the ball scew? Actual data on the machine Axial load* F Yes ( mm) Remaks Requied life: ( h o cycles) N/A Planning to check enduance (Date: ) No (Reason: ) Enduance of the ball scew () Mounting accuacy, load conditions, and lubicating conditions ae the main factos affecting the ball scew fatigue life. Theefoe, we ecommend evaluating the influence of those factos on actual use of you machines. () A tempeatue ise caused by opeational and envionmental conditions may educe the effectiveness of lubicant.

22 TAC Seies of all Scew Suppot eaings TAC Seies of all Scew Suppot eaings fo High-Load Applications TAC-HR Seies and TAC-SHR Seies of all Scew Suppot eaings fo High-Load Applications Angula Contact Thust all eaings of all Scew Suppot eaings fo High-Load Applications TAC-SHR seies The TAC-SHR seies has the same oute diamete and width dimensions as the TAC-HR seies but with a smalle boe diamete. Since the TAC-SHR seies has the same load ating as the TAC-HR seies, uses can use a smalle diamete of scew shaft end. High-capacity beaings used fo suppoting ball scews opeating unde high loads typically adopt lagediamete steel balls in ode to ensue sufficient high capacity and to educe the numbe of ows of combinations. With the development and commecialization of the TAC-SHR seies, which has the same load ating as that of the TAC-HR seies but with a smalle boe diamete, uses can maintain equivalent high-capacity pefomance with a smalle diamete of scew shaft end without changing the numbe of ows. Please efe to pages 4 and 44 fo applicable beaing tables. TAC-SHR Seies Mounted to a all Scew (Example) TAC-HR Seies High capacity and compact These beaings achieve high-load capacity in a small-envelope design. Impoved eliability These beaings offe a fivefold longe sevice life than that of angula contact ball beaings of the same size. Easy handling These beaings come in an easy-to-use univesal aangement that povides the necessay peload by simply mounting them. Pocedues associated with designing and pocessing pats in ode to adjust the peload have been eliminated. Optimum design fo educed toque These beaings have been optimally designed to achieve significant eductions in toque. ø ø0 Fou ows of Six ows of ø ø TAC0 beaings TAC0 beaings ø 56 6 Flanged shaft end Width of shaft is extended fo flangeless shaft ends TAC-SHR Seies a a Compaison of Load Capacity 7 (Standad angula contact ball beaing; º contact angle) Limiting axial load Dynamic load ating TAC0AT85 (TAC-HR seies) ø Fou ows of TAC- beaings ø TAC-HR seies a= ( oe diamete: o less) a= ( oe diamete: 0 o moe) TAC-SHR seies a= ( oe diamete: o less) a= ( oe diamete: o moe) TAC-T85 (TAC-SHR seies) Load, kn

23 TAC Seies of all Scew Suppot eaings TAC Seies of all Scew Suppot eaings fo High-Load Applications eaing numbes d ounday dimensions D Dimensions d d Dimensions D D Contact angle a Recommended amount of pepacked gease (cc) Limiting speed (min ) ow asic dynamic load ating C a by numbe of ows sustaining F a ows ows 4 ows 5 ows 6 ows ow Limiting axial load by numbe of ows sustaining F a ows ows 4 ows 5 ows 6 ows 5TAC0AT NSK all Scews fo High-Load Dive TAC-HR Seies eaing Specifications TAC0AT TAC0AT ød ød ød ød ød ød TAC0AT a TAC0AT TAC0AT TAC0AM TAC0CMC TAC0CMC Dynamic equivalent load Angula contact thust ball beaings fo electic injection molding machines ae subjected to extemely lage axial loads (F a) in compaison to adial loads (F ). The F a/f atio fa exceeds constant e (when contact angle a is º, e is.4; when contact angle a is º, e is.7). Theefoe, the dynamic equivalent load P of the suppot beaing is obtained by the following fomula egadless of the numbe of ows: When contact angle a is º, P is 0.7 F + F a When contact angle a is º, P is 0.8 F + F a TAC-SHR Seies eaing Specifications eaing numbes TAC5-T85 TAC-T85 TAC45-T85 d 5 45 ounday dimensions D Dimensions Dimensions d d D D Contact angle a Recommended amount of pepacked gease (cc) Limiting speed (min ) ow asic dynamic load ating C a by numbe of ows sustaining F a ows ows ows ows ows ow Limiting axial load by numbe of ows sustaining F a ows ows 4 ows ows ows TAC-T TAC-M TAC-MC TAC0-MC all Scew Shaft Diametes and Recommended TAC Seies Shaft diamete TAC-HR Seies TAC-SHR Seies Remaks:. Chamfe dimensions and of bounday dimensions listed in the beaing specifications ae minimum values.. The numbe of ows fo the basic dynamic load atings and limiting axial loads show the numbe of beaing ows fo the pimay axially loaded side. Do not confuse this numbe of ows with the numbe of ows fo the entie assembly. ( ow: D, DF; ows: DT, D, DD, DFD, DFF; ows: DTD, DT, DFT). The limiting axial load is the limiting value of the ball duing aceway-shoulde tansition (ball ovehang). Theefoe, the pemissible axial load fo the beaing selection should be each value descibed above multiplied by Please contact NSK fo beaings not listed in the specifications above., TAC0 TAC0 TAC0 TAC0 TAC0 0TAC0 TAC0 TAC5- TAC- TAC- TAC- TAC- TAC0-4 44

24 NSK Rolle Guides RA Seies NSK Rolle Guides RA Seies The RA seies olle guides featue high-load capacity and high igidity and help to peseve the woking envionment. This seies is the culmination of NSK s analysis technology and tibology. Demand fo peloaded olling linea guides fo high-load dive is now inceasing. The RA seies with high igidity and a function fo peseving a clean envionment is one of the most suitable linea guides fo high-load applications. High-load capacity The wold s highest-load capacity, taking full advantage of NSK s analysis technology, ensues a long opeating life. High igidity The optimum size of the olle ensues high igidity and suppots moe compact machiney. Specifications Rolle Slide Types and Shapes Two types of olle slides ae available in this seies: a flange type and a squae type. A compact, low-pofile squae type is now available. On the mounting hole of the flange type, the tapped pat is used to fix the olle slide fom the top suface, and the mino diamete can be used as a bolt hole fom the bottom. This povides mounting fom both diections, top and bottom. Rolle slide length can be specified by the standad high-load type o special long, supe-high load type. Fig. Squae type (RA5, 0, 5, 0, 5, 45,, and 65) Rolle slide shape code AN (High load) Highly dust-esistant design A high-pefomance seal, povided as standad equipment, pevents the enty of foeign matte and maintains the olle guides at its oiginal level of sound pefomance fo extended peiods of time. Intechangeable seies (Random assembly seies of guide ails and olle slides) The intechangeable seies of the guide ails and the olle slides ae independently available in stock. They can be andomly matched and assembled in accodance with the applicable code of accuacy and peload fo pompt delivey. Fig. Low-pofile type (RA5, 5, 0, 5, 45, and ) N (Supe-high load) Rolle slide shape code AL (High load) Optimal Design L (Supe-high load) NSK executed a compehensive, detailed pefomance simulation of olle guides by integating its analysis technology and the tibology technology that the company had been developing ove many yeas. Down to the dimensions and shapes of component details, we have attained an optimal design completely. Smooth motion by use of etaining pieces alanced fou-diectional iso-load specifications Fig. Flange type (RA5, 0, 5, 0, 5, 45,, and 65) Rolle slide shape code EM (High load) GM (Supe-high load) Example of olle slide defomation analysis Analysis example of contact pessue distibution of olles Please efe to Cat. No. E8 fo moe details

25 CAT. No.E8 00 E- Pinted in Japan NSK Ltd. 00