(dimensions in mm)
Bearing Type - Open
Bore Dia (d) - 8.0000
Outer Dia (D) - 28.0000
Width (B) - 9.0000
Radius (min) (rs) - 0.300
Dynamic Load Rating (Cr) - 3,879
Static Load Rating (Cor) - 1,586
Max Speed (Grease) (X1000 RPM) - 28
Max Speed (Oil) (X1000 RPM) - 34
Max. Shaft Shoulder Dia. Inner (Li) - 14.5
Min. Housing Shoulder Dia., Outer (Lo) - 21.3
Ball Qty - 7
Ball Dia (Dw) - 4.7620
Weight (g) - 28.10
Precision - A1
Standard Clearance - K25
Material - Martensitic Stainless Steel
Also available in 52100 Chrome Steel
ABEC Grades 1, 3, 5, 7, and 9 are available. Also, the equivalent ISO classes.
- Model Number: 638H
- Inner Diameter：8mm Outer Diameter：28mm Width：9mm
- Type：Deep Groove Ball Bearings
- Update date：2025-12-15
- Application:training beds etc,glass processing machine,transistor fittings,Control,Machine Tool Accessories,leather processing,insect experimental analysis instrument,Embroidery,Machine Tool Accessories,Pneumatic Actuator,sheet industry
- Similar models:CX 63803-2RS ISB 63801 SKF W638/9-2Z SKF W63802R SKF W638/4X-2Z CX 63801 NSK 638DD SKF W63800-2RZ NSK 638ZZ1 ISB SS638/2-ZZ
- BEARING POWER International Trading Co.,Ltd. specialize in 638H products，there is large inventory of AST 638H . We has been built up long-term cooperation with AST company, could make a bulk order of the 638H Which AST 638H is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.
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Model No. Inner Diameter Outer Diameter Width Brand Type 16004 20 42 8 ISO Deep Groove Ball Bearings 23056 KCW33+H3056 280 420 106 ISO Spherical Roller Bearings 30VS3720P 30 37 KOYO Needle Roller Bearings 32213F 65 120 32,75 Fersa Tapered Roller Bearings 7028A5TRSU 140 210 33 NSK Angular Contact Ball Bearings ASTEPBF 3539-26 38 42 AST Plain Bearings DLF 10 12 10 16 12 KOYO Needle Roller Bearings EGW18-E40 18 32 1,5 INA Plain Bearings FYT 3/4 FM 19.05 SKF Bearing Units GAC 65 CP 65 100 23 ISB Plain Bearings HSS71901-E-T-P4S 12 24 6 FAG Angular Contact Ball Bearings K 50x55x20 50 55 NBS Needle Roller Bearings MR148ZZ 8 14 4 ISO Deep Groove Ball Bearings NF 216 80 125,3 26 NSK Cylindrical Roller Bearings NJ28/500 500 620 72 CX Cylindrical Roller Bearings NU2306 30 72 27 ISO Cylindrical Roller Bearings UKFL213 60,325 KOYO Bearing Units NTB100135 100 135 4 IKO THRUST NEEDLE BEARINGS RNA4908 62 22 SKF NEEDLE BEARINGS R6.2RS .3750 .8750 .2812 SKF DEEP GROOVE BALL BEARINGS
Hot number：NACHI 2217K NACHI 24126AX SKF 6206-2Z/VA201 ISO JL69349/10 RHP LJT3 NKE NUP2328-E-MPA FAG NU2313 FAG HK2216 SKF 29468E RIV MP85 STEYR HA2334 SKF (Old No.) NAF20x37x16 CONSOLIDATED 3319-DAM CONSOLIDATED NU-1952E CONSOLIDATED HC7202TGP/4 Timken 16582/16522 Gamet 244230X/244330P Timken 28682/28622B SKF 6218-RS1 SKF 6303-2ZNR NSK 6901L11-H-20 CYSD 6922-ZZ SKF GEZM 400 ES-2LS NACHI HM911245/HM911210 AST NJ206 E KOYO NUP1022 SKF SN612 SKF 81122 CONSOLIDATED IR-70x80x25 CONSOLIDATED WS81168
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