ANGULAR CONTACT BEARINGS

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Dominick Fleming
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1 ANGULAR CONTACT S

ANGULAR CONTACT S Angular Contact Bearing Design Angular contact bearings have one ring shouler remove, this may be from the inner or outer ring.

2 ANGULAR CONTACT S Angular Contact Bearing Design Angular contact bearings have one ring shouler remove, this may be from the inner or outer ring. This allows a larger ball complement than foun in comparable eep groove bearings, giving a greater loa capacity. Spee capacity of angular contact bearings is also greater than eep groove. Baren angular contact bearings have a nominal contact angle ranging from 10 to 25. They can be use in pre-loae uplex sets, back to back (DB) or face to face (DF) for supporting thrust loas in both irections or in tanem (DT) for aitional capacity. Contact angles are obtaine by assembling the bearings to the appropriate raial play values. The smaller contact angles give better raial capacity an rigiity while the higher contact angles give higher axial capacity an rigiity. Angular contact bearings support thrust loas or combinations of raial an thrust loaing. They can not accept raial loas alone a thrust loa of sufficient magnitue must be applie. A single angular contact bearing can be loae in one thrust irection only, this may be an operating loa or pre-loa. Separable an non-separable types are available within the category of angular contact bearings. Separable bearings are useful where bearings must be installe in blin holes or where press fits are require on the shaft an in the housing. The separable feature also permits ynamic balancing of the rotating components with the inner ring mounte in place without the outer ring an housing. In Baren miniature an instrument angular contact bearings (types B an H), machine phenolic cages with high spee capability are stanar. These cages are outer ring lan guie, which allows lubricant access to the most esire point at the ring an ball contact area. Centrifugal force carries lubricant outwars uring operation to reach the other areas of nee. For larger spinle an turbine series B types, phenolic cages are also stanar, but H types are normally supplie with bronze cages of various esigns. In separable bearings the B type cages have steppe ball pockets to retain the balls when the inner ring is remove. Consult Baren engineering for questions regaring aitional cage consierations, or refer to cage iscussion in the engineering section. Baren 36 This page fols out

3 ANGULAR CONTACT S Nomenclature Example: M 102J JJ X17 R2 C Materials & Special Processes Lubrication Size & Series Calibration Cage Raial Runout Special Features Raial Play Functional Test Duplexing & Preloaing Materials & Special Processes BC Barrier coating P TCP coating C Ceramic Balls 30X X Life Ultra rings S AISI 440C rings an balls M M50 rings an balls T T5 rings an T15 balls V Denotes Abec 5T for torque tube an extra thin series No symbol inicates SAE rings an balls Sizes & Series R_B Inch series instrument angular contact bearing with separable relieve inner ring R_H Inch series instrument angular contact bearing with non separable relieve outer ring 30B or H Metric series spinle/turbine configurations as for R series above 100B Metric series spinle turbine bearing with separable relieve inner ring 100/200/300/1900 H Metric series spinle/ turbine angular contact non separable relieve outer ring 100/200/300/1900 J Metric series spinle/ turbine angular contact non separable relieve inner ring Cages B Reinforce phenolic, one piece, esigne to retain the balls in the outer ring H Reinforce phenolic, one piece, halo esign (H)JB Bronze machine halo light weight esign for optimum capacity (H)JH Bronze machine halo, heavier section, centere on ball pitch iameter (J)JJ Bronze presse halo with forme pockets Special Features Letters X or Y followe by numbers inicate special features. Some of these are now stanar an appear in the bearing tables. Some coonly use are: X204 Customer part number marke on bearing X205 Full of Balls (no cage) Consult Baren Engineering for etails. Raial Play Raial play in angular contact bearings is usually stanarise by the esign either: to achieve a esire contact angle or to achieve optimum performance uner the typical combine loa whilst still remaining assemble for hanling an mounting operations Functional Test Angular contact bearings are not normally subject to special low torque testing. Duplexing & Preloas For uplex sets, letter symbol inicates type of mounting. If followe by number, numerals inicate mean preloa in pouns. Absence of number inicates stanar preloa. D Universal mounting. Angular contact uplex sets universally groun have inner an outer rings of the same with, an can be installe DB, DF or DT. Stanar Preloas are inicate by: L Light, M Meium an H Heavy. Raial Runout E Special raial runout consult Baren R Inner ring marke for high point of raial runout R1 Outer ring marke for high point of raial runout R2 Both rings marke with high point of raial runout Calibration Bearings are available with bore an O/D calibrate into steps of ", " or C an O/D in " (0.0025) steps C44 & O/D in " ( ) steps O Is use when no calibration is require, i.e. CXO bore only calibrate in " steps Groups may be combine, i.e. C4X is calibrate in " steps an O/D in " steps CM Special metric calibration in 1 micron steps (0.001), inner ring bore only For further information consult Calibration in Engineering Section. Lubrication The pre-lubrication type is always inicate within the bearing number on the packaging. O or OJ numbers enote oil G or GJ numbers enote grease Popular lubricants are liste within Lubrication in the Engineering Section. Baren 37

4 ANGULAR CONTACT S Prouct Series Descriptions B Type J Type Series R, R100, M an 30 Miniature an Instrument Bearings; Series 1900, 100, 200 an 300 Metric Ultra Light, Extra Light, Light an Meium Turbine Bearings Separable Type (B): Outer ring has full shoulers, inner ring has one shouler cut away. The inner ring is removable for mounting on the shaft separately from the outer ring assembly. Type (H): Inner ring has full shoulers, outer has one shouler cut away with a small retaining lip at the ege of raceway. Type (J): Outer ring has full shoulers, inner ring has one shouler cut away with a small retaining lip at the ege of raceway. Materials: The stanar material for angular contact bearings is SAE bearing steel for both rings an balls. With the option of using silicon nitrie ceramic balls even higher spees can be attaine. Other materials available are AISI 440C corrosion resistant steel, Croniur 30 high nitrogen steel an M50 tool steel. Lubricant: Angular contact bearings can be supplie with a range of lubricants. Lubricant type shoul be specifie when orering base on application requirements. For applications that cannot tolerate extreme fits, selective fitting with calibrate parts shoul be consiere. See Engineering section for etails. Baren 39

5 ANGULAR CONTACT (INCH) s: to B an J Type Outsie D With B Shaft/Housing Raius r 1 Max. Shaft/Housing Raius r 2 Max. Non-Thrust Sie Contact Angle n 2 R1-5B R1-5H R144H R2-5B R2-5H R2B R2H R2-6H R3B R3H R4B R4H R4HX8 R8H Baren 40

6 ANGULAR CONTACT (INCH) s: to B an J Type NOMENCLATURE Static Capacity Raial C o (N) Thrust T o (N) Basic Dynamic Loa Rating C (N) B Type: Separable J Type: : ATTAINABLE SPEEDS (RPM) Oil Grease R1-5B R1-5B 267, ,000 R1-5H R1-5H 267, ,000 R144H R144H 315, ,000 R2-5B R2-5B 244, ,000 R2-5H R2-5H 244, ,000 R2B R2B 202, ,000 R2H R2H 202, ,000 R2-6H R2-6H 202, ,000 R3B R3B 152, ,000 R3H R3H 152, ,000 R4B R4B 116,000 93,000 R4H R4H 116,000 93,000 R4HX ,810 2,313 R4HX8 130, ,000 R8H 2,073 1,308 3,981 R8H 57,000 47,000 Baren 41

7 ANGULAR CONTACT (METRIC) s: 3 to 17 B an J Type Outsie D With B Shaft/Housing Raius r 1 Max. Shaft/Housing Raius r 2 Max. Non-Thrust Sie Contact Angle n 2 2M3BY3 34H 34BX M5BY1 36H 36BX1 37H 38H 38BX2 39H 100H 200H 1901H 101H 101BX48 201H 301H 1902H 102H 102BX48 102BJJX6 202H 302H 103H 103BX48 203H 303H Baren 42

8 ANGULAR CONTACT (METRIC) s: 3 to 17 B an J Type NOMENCLATURE Static Capacity Raial C o (kn) Thrust T o (kn) Basic Dynamic Loa Rating C (kn) B Type: Separable J Type: : ATTAINABLE SPEEDS (RPM) Oil Grease 2M3BY M3BY3 315, ,000 34H H 183, ,000 34BX BX4 183, , B 34-5H 183, ,000 19M5BY M5BY1 200, ,000 36H H(JB) 250, ,600 36BX BX1 162, ,000 37H H(JB) 132,000 85,800 38H H(JH) 132,000 85,800 38BX BX2 88,000 57,000 39H H(JB) 132,000 85, H HJH 150, , H HJB 150, , H HJH 125,000 83, H HJH 125,000 83, BX BX48 125,000 83, H HJH 125,000 83, H HJH 125,000 62, H HJH 100,000 66, H HJB 100,000 66, BX BX48 100,000 66, BJJX BJJX6 100,000 66, H HJB 100,000 66, H HJH 100,000 50, H HJH 88,200 58, BX BX48 88,200 58, H HJH 88,200 58, H HJH 88,200 44,100 Tables continue on next page Baren 43

9 ANGULAR CONTACT (METRIC) s: 20 to 50 B an J Type Outsie D With B Shaft/Housing Raius r 1 Max. Shaft/Housing Raius r 2 Max. Non-Thrust Sie Contact Angle n 2 104H 104BX48 204H 304H 1905H 105H 105BX48 205H 305H 106H 106BX48 206H 306H 1907H 107H 107BX48 207H 307H 108H 108BX48 208H 308H 109H 209H 309H 110H 110BX48 210H Baren 44

10 ANGULAR CONTACT (METRIC) s: 20 to 50 B an J Type NOMENCLATURE Static Capacity Raial C o (kn) Thrust T o (kn) Basic Dynamic Loa Rating C (kn) B Type: Separable J Type: : Nonseparable ATTAINABLE SPEEDS (RPM) Oil Grease 104H HJH 75,000 50, BX BX48 75,000 50, H JJJ 204HJH 75,000 50, H HJB 75,000 37, H HJH 60,000 40, H HJH 60,000 40, BX BX48 60,000 40, H HJB 60,000 40, H HJB 60,000 30, H HJH 50,000 33, BX BX48 50,000 33, H HJH 50,000 33, H HJH 50,000 25, H HJH 42,800 28, H HJB 42,800 28, BX BX48 42,800 28, H HJH 42,800 28, H HJH 42,800 21, H HJH 37,500 25, BX BX48 37,500 25, H HJH 37,500 25, H HJH 37,500 18, H HJH 33,300 22, H HJB 33,300 22, H HJH 33,300 16, H HJH 30,000 20, BX BX48 30,000 20, H HJH 30,000 20,000 Tables continue on next page Baren 45

11 ANGULAR CONTACT (METRIC) s: 50 to 100 B an J Type Outsie D With B Shaft/Housing Raius r 1 Max. Shaft/Housing Raius r 2 Max. Non-Thrust Sie Contact Angle n 2 310H 211H 212H 312H 113H 113BX48 214H 115H 117H 117BX48 118H 220H Baren 46

12 ANGULAR CONTACT (METRIC) s: 50 to 100 B an J Type NOMENCLATURE Static Capacity Raial C o (kn) Thrust T o (kn) Basic Dynamic Loa Rating C (kn) B Type: Separable J Type: : ATTAINABLE SPEEDS (RPM) Oil Grease 310H HJH 30,000 20, H HJH 27,200 18, H HJH 25,000 16, H HJH 25,000 12, H HJH 23,000 15, BX BX48 23,000 15, H HJH 21,400 14, H HJH 20,000 13, H HJH 17,600 11, BX BX48 17,600 11, H HJH 16,600 11, H HJH 15,000 10,000 Baren 47

Crossed Roller Bearings

Crossed Roller Bearings Special Selection & http://www.ikont.eu Official Distributer in Unite Kingom rosse Bearings Unit rackley Way Peartree Lane Duley, West Milans DY UW Tel : 9 / E-mail : uley@goiva-bearings.co.uk for AT-EG