Products
Thin Section Bearings

Inch Open Type X Thin Section Bearings

The X-Type, or 4-point contact, ball bearing is ideal for moment loading. X-Type bearings are designed with gothic arch raceways creating 4 contact points between the balls and the raceways. This design is excellent for moment loading and reversing axial loading. The X-Type bearing can be used for other light loading conditions, but is not recommended in place of the C- or A-Type bearing for pure radial loads. Contact Silverthin™ for information on combined load and limiting speeds.

Loading Condition
RadialAxialMomentReversing AxialCombined Radial Thrust
PoorGood,ExcellentExcellentPoor
Nylon; one piece snapover separator standard
3/32" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.015"
  3. Race Width Tolerance: +0.000 -0.005"

SAA SERIES 3/16" x 3/16"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SAA10XL01.0001.3751.1401.2352902457303701701100.03
SAA15XL01.5001.8751.6401.7354002951,0004603401850.04
SAA17XL01.7502.1251.8901.9854603201,1405004402300.04
Brass; snapover separator standard
1/8" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.025"
  3. Race Width Tolerance: +0.000 -0.005"

SA SERIES 1/4" x 1/4"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SA020XP02.0002.5002.1862.3146805151,7107907704350.10
SA025XP02.5003.0002.6862.8148305852,0909101,1506000.13
SA030XP03.0003.5003.1863.3149906452,4701,0101,6007850.15
SA035XP03.5004.0003.6863.8141,1407002,8501,1102,1309850.18
SA040XP04.0004.5004.1864.3141,2907553,2201,2102,7401,2050.19
SA042XP04.2504.7504.4364.5641,3707853,4101,2603,0701,3200.20
SA045XP04.5005.0004.6864.8141,4408103,6001,3103,4201,4400.22
SA047XP04.7505.2504.9365.0641,5208353,7901,3503,7901,5650.23
SA050XP05.0005.5005.1865.3141,5908603,9801,4004,1801,6950.24
SA055XP05.5006.0005.6865.8141,7509104,3601,4805,0201,9600.25
SA060XP06.0006.5006.1866.3141,9009554,7401,5705,9302,2400.28
SA065XP06.5007.0006.6866.8142,0501,0005,1201,6506,9102,5350.30
SA070XP07.0007.5007.1867.3142,2001,0455,5001,7307,9802,8450.31
SA075XP07.5008.0007.6867.8142,3501,0905,8801,8109,1203,1650.34
SA080XP08.0008.5008.1868.3142,5001,1306,2601,89010,3303,5000.38
SA090XP09.0009.5009.1869.3142,8101,2107,0202,04012,9904,2050.44
SA100XP010.00010.50010.18610.3143,1101,2907,7802,18015,9404,9550.50
SA110XP011.00011.50011.18611.3143,4101,3608,5402,32019,2105,7500.52
SA120XP012.00012.50012.18612.3143,7201,4359,3002,45022,7706,5850.56
Brass; snapover separator standard
5/32" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.040"
  3. Race Width Tolerance: +0.000 -0.005"

SB SERIES 5/16" x 5/16"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SB020XP02.0002.6252.2312.3939307602,3401,1301,0806600.16
SB025XP02.5003.1252.7312.8931,1408502,8401,2901,6008950.19
SB030XP03.0003.6253.2313.3931,3409353,3501,4402,2201,1600.24
SB035XP03.5004.1253.7313.8931,5401,0153,8601,5902,9401,4500.29
SB040XP04.0004.6254.2314.3931,7501,0904,3701,7203,7701,7650.30
SB042XP04.2504.8754.4814.6431,8301,1204,5701,7804,1701,9150.31
SB045XP04.5005.1254.7314.8931,9501,1654,8801,8504,6902,1050.33
SB047XP04.7505.3754.9815.1432,0301,1955,0801,9005,1402,2650.34
SB050XP05.0005.6255.2315.3932,1501,2355,3801,9805,7202,4650.38
SB055XP05.5006.1255.7315.8932,3601,3055,8902,1006,8502,8450.41
SB060XP06.0006.6256.2316.3932,5601,3706,4002,2208,0803,2450.44
SB065XP06.5007.1256.7316.8932,7601,4356,9102,3409,4103,6700.47
SB070XP07.0007.6257.2317.3932,9701,5007,4202,45010,8504,1100.50
SB075XP07.5008.1257.7317.8933,1701,5607,9202,56012,3804,5700.53
SB080XP08.0008.6258.2318.3933,3701,6208,4302,67014,0205,0450.57
SB090XP09.0009.6259.2319.3933,7801,7309,4502,88017,6006,0500.66
SB100XP010.00010.62510.23110.3934,1901,84010,4603,08021,5807,1200.73
SB110XP011.00011.62511.23111.3934,5901,94511,4803,28025,9708,2550.75
SB120XP012.00012.62512.23112.3935,0002,04512,5003,47030,7709,4450.83
SB140XP014.00014.62514.23114.3935,8102,23514,5303,84041,58011,9951.05
SB160XP016.00016.62516.23116.3936,6202,41016,5604,19054,02014,7501.20
SB180XP018.00018.62518.23118.3937,4402,57518,5904,52068,09017,6951.35
SB200XP020.00020.62520.23120.3938,2502,73020,6204,85083,78020,8151.50
Brass; snapover separator standard
3/16" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.040"
  3. Race Width Tolerance: +0.000 -0.005"

SC SERIES 3/8" x 3/8"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SC040XP04.0004.7504.2774.4732,1001,4155,2602,2104,6002,3250.45
SC042XP04.2505.0004.5274.7232,2201,4655,5602,2905,1402,5400.47
SC045XP04.5005.2504.7774.9732,3401,5105,8602,3805,7102,7600.48
SC047XP04.7505.5005.0275.2232,4601,5556,1602,4606,3202,9900.50
SC050XP05.0005.7505.2775.4732,5901,6006,4602,5406,9503,2250.58
SC055XP05.5006.2505.7775.9732,8301,6857,0602,6908,3003,7150.59
SC060XP06.0006.7506.2776.4733,0701,7707,6602,8409,7704,2350.63
SC065XP06.5007.2506.7776.9733,3101,8508,2702,99011,3704,7750.68
SC070XP07.0007.7507.2777.4733,5501,9308,8703,13013,0805,3400.73
SC075XP07.5008.2507.7777.9733,7902,0059,4703,27014,9105,9300.78
SC080XP08.0008.7508.2778.4734,0302,08010,0703,41016,8706,5400.84
SC090XP09.0009.7509.2779.4734,5102,22511,2703,67021,1307,8300.94
SC100XP010.00010.75010.27710.4734,9902,36512,4703,93025,8809,2001.06
SC110XP011.00011.75011.27711.4735,4702,49513,6804,18031,11010,6501.16
SC120XP012.00012.75012.27712.4735,9502,62014,8804,42036,83012,1751.25
SC140XP014.00014.75014.27714.4736,9102,86017,2804,89049,69015,4351.52
SC160XP016.00016.75016.27716.4737,8803,08519,6905,33064,48018,9551.73
SC180XP018.00018.75018.27718.4738,8403,29522,0905,76081,19022,7101.94
SC200XP020.00020.75020.27720.4739,8003,49024,5006,17099,83026,6952.16
SC250XP025.00025.75025.27725.47312,2003,94030,5107,140154,80037,5202.69
SC300XP030.00030.75030.27730.47314,6104,34036,5208,050221,90049,4353.21
Brass; snapover separator standard
1/4" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.060"
  3. Race Width Tolerance: +0.000 -0.005"

SD SERIES 1/2" x 1/2"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SD040XP04.0005.0004.3704.6303,0802,3107,7003,5206,9303,9000.78
SD042XP04.2505.2504.6204.8803,1902,3557,9803,6007,5804,1950.83
SD045XP04.5005.5004.8705.1303,4202,4558,5503,7708,5504,6000.88
SD047XP04.7505.7505.1205.3803,5302,4958,8403,8609,2804,9150.94
SD050XP05.0006.0005.3705.6303,7602,5909,4104,02010,3505,3501.00
SD055XP05.5006.5005.8706.1304,1002,72510,2604,26012,3106,1351.06
SD060XP06.0007.0006.3706.6304,4502,85511,1204,49014,4506,9601.16
SD065XP06.5007.5006.8707.1304,7902,98011,9704,72016,7607,8251.22
SD070XP07.0008.0007.3707.6305,1303,10512,8304,94019,2408,7301.31
SD075XP07.5008.5007.8708.1305,4703,22013,6805,16021,8909,6701.41
SD080XP08.0009.0008.3708.6305,8103,34014,5405,37024,71010,6451.53
SD090XP09.00010.0009.3709.6306,5003,56016,2505,79030,87012,6951.72
SD100XP010.00011.00010.37010.6307,1803,77517,9606,19037,71014,8701.88
SD110XP011.00012.00011.37011.6307,8703,98019,6706,57045,23017,1752.06
SD120XP012.00013.00012.37012.6308,5504,18021,3806,95053,44019,5902.25
SD140XP014.00015.00014.37014.6309,9204,55024,8007,67071,91024,7552.73
SD160XP016.00017.00016.37016.63011,2904,90028,2208,36093,11030,3253.10
SD180XP018.00019.00018.37018.63012,6505,22531,6409,030117,00036,2703.48
SD200XP020.00021.00020.37020.63014,0205,53535,0609,670143,70042,5603.85
SD250XP025.00026.00025.37025.63017,4406,23543,61011,180222,40059,6504.79
SD300XP030.00031.00030.37030.63020,8606,85552,16012,600318,10078,4455.73
Brass; snapover separator standard
3/8" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.080"
  3. Race Width Tolerance: +0.000 -0.005"

SF SERIES 3/4" x 3/4"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SF040XP04.0005.5004.5554.9455,3604,66513,4006,83012,7308,3101.90
SF042XP04.2505.7504.8055.1955,6404,79514,1107,07014,1108,9952.00
SF045XP04.5006.0005.0605.4455,9304,92514,8107,30015,5509,6952.10
SF047XP04.7506.2505.3055.6956,2105,05015,5207,53017,07010,4152.20
SF050XP05.0006.5005.5555.9456,4905,17016,2207,76018,66011,1552.30
SF055XP05.5007.0006.0556.4457,0505,41517,6308,20022,04012,6952.50
SF060XP06.0007.5006.5556.9457,6205,65019,0508,63025,71014,3102.70
SF065XP06.5008.0007.0557.4458,1805,88020,4609,05029,66015,9952.90
SF070XP07.0008.5007.5557.9458,7506,10521,8709,46033,89017,7453.20
SF075XP07.5009.0008.0558.4459,3106,32523,2809,87038,41019,5703.40
SF080XP08.0009.5008.5558.9459,8806,53524,69010,26043,20021,4553.50
SF090XP09.00010.5009.5559.94511,0006,94527,51011,03053,64025,4103.90
SF100XP010.00011.50010.55510.94512,1307,34030,33011,77065,21029,6104.30
SF110XP011.00012.50011.55511.94513,2607,72033,15012,49077,91034,0304.80
SF120XP012.00013.50012.55512.94514,3908,08535,97013,19091,73038,6655.20
SF140XP014.00015.50014.55514.94516,6508,77541,62014,530122,80048,5556.00
SF160XP016.00017.50016.55516.94518,9009,42047,26015,820158,30059,2007.10
SF180XP018.00019.50018.55518.94521,16010,03052,90017,060198,40070,5357.90
SF200XP020.00021.50020.55520.94523,42010,60058,55018,250243,00082,5308.90
SF250XP025.00026.50025.55525.94529,06011,91072,65021,070374,200115,03510.90
SF300XP030.00031.50030.55530.94534,70013,06586,76023,720533,600150,71013.00
SF350XP035.00036.50035.55535.94540,35014,100100,90026,220721,200189,10515.10
Brass; snapover separator standard
1/2" balls
  1. Load capacities are not additive
  2. The maximum shaft or housing fillet radius that the bearing corners will clear for this series is 0.080"
  3. Race Width Tolerance: +0.000 -0.005"

SG SERIES 1" x 1"

SILVERTHIN
PART
NUMBER
DIMENSION IN INCHES CAPACITIES IN POUNDS / IN-LBS APPROX
WEIGHT
POUNDS
BORE OUTSIDE
DIA
LAND
DIA
LAND
DIA
RADIAL THRUST MOMENT
B D L1 L2 STATIC DYN STATIC DYN STATIC DYN
SG040XP04.0006.0004.7425.2588,2107,98020,52011,26020,52014,9653.60
SG042XP04.2506.2504.9925.5088,2107,91520,52011,26021,55015,5903.80
SG045XP04.5006.5005.2425.7588,7608,20521,89011,75024,08016,9304.00
SG047XP04.7506.7505.4926.0089,3008,48523,26012,23026,74018,3054.10
SG050XP05.0007.0005.7426.2589,8508,76024,62012,71029,55019,7204.30
SG055XP05.5007.5006.2426.75810,4008,98025,99013,18033,79021,8954.70
SG060XP06.0008.0006.7427.25811,4909,50528,73014,09040,22024,9555.10
SG065XP06.5008.5007.2427.75812,0409,71530,10014,53045,14027,3255.40
SG070XP07.0009.0007.7428.25813,13010,21032,83015,40052,53030,6355.80
SG075XP07.5009.5008.2428.75813,68010,41034,20015,82058,14033,1956.10
SG080XP08.00010.0008.7429.25814,77010,88036,94016,65066,48036,7456.50
SG090XP09.00011.0009.74210.25816,42011,52541,04017,87082,08043,2407.20
SG100XP010.00012.00010.74211.25818,06012,14545,14019,04099,32050,1257.90
SG110XP011.00013.00011.74212.25819,70012,74049,25020,180118,20057,3458.60
SG120XP012.00014.00012.74213.25821,34013,31553,35021,280138,70064,9359.30
SG140XP014.00016.00014.74215.25824,62014,40561,56023,410184,70081,05510.80
SG160XP016.00018.00016.74217.25827,91015,42569,77025,450237,20098,37512.30
SG180XP018.00020.00018.74219.25831,19016,38577,98027,410296,300116,79513.70
SG200XP020.00022.00020.74221.25834,47017,29586,18029,300362,000136,24015.80
SG250XP025.00027.00025.74226.25842,68019,360106,70033,780554,900188,84019.50
SG300XP030.00032.00030.74231.25850,89021,200127,20037,980788,800246,54023.30
SG350XP035.00037.00035.74236.25859,10022,845147,70041,9701,064,000308,52527.10

Part Number Cross Reference

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