d - 8 mm
D - 28 mm
B - 9 mm
C - 9 mm
r min. - 0,3 mm
r1 min. - 0,3 mm
da min. - 10 mm
Da max. - 26 mm
ra max. - 0,3 mm
Weight - 0,029 Kg
Basic dynamic load rating (C) - 4,55 kN
Basic static load rating (C0) - 1,95 kN
(Grease) Lubrication Speed - 26000 r/min
(Oil) Lubrication Speed - 32000 r/min
Calculation factor (f0) - 12,3
- Model Number: 638
- Inner Diameter：8mm Outer Diameter：28mm Width：9mm
- Type：Deep Groove Ball Bearings
- Update date：2025-12-17
- Application:car and accessories,Antenna Potentials,Grinding and polishing equipment,Optical Instruments,industrial supplies,wheel lathe,Hydraulic Hose,industry test,Insect Capture,storage and transportation equipment,cleaners
- Similar models:SKF W63802R ZEN 63800 ZEN 63801 ZEN S638 SKF W638/5R-2Z SKF W63802-2RS1 ISB SS638/4-ZZ SKF 638/4-2Z ZEN 63803-2Z ISB 63801-ZZ
- BEARING POWER International Trading Co.,Ltd. specialize in 638 products，there is large inventory of KOYO 638 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 638 Which KOYO 638 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 180TP169 457,2 711,2 127 Timken Thrust Roller Bearings 23180 EKW33+AOH3180 380 650 200 ISB Spherical Roller Bearings 24144-K30-MB-W33+AH24144 220 370 150 NKE Spherical Roller Bearings 2P19013 950,000 1330,000 300,000 NTN Thrust Roller Bearings 32307 35 80 32,75 NTN Tapered Roller Bearings 32319 95 200 71,5 NTN Tapered Roller Bearings C 39/1060 KMB 1400 1060 250 SKF Cylindrical Roller Bearings 759/752A 88,9 159,995 47,625 Timken Tapered Roller Bearings F684 4 9 2,5 FBJ Deep Groove Ball Bearings K15X19X19,5SE 15 19 KOYO Needle Roller Bearings KYF120 304,800 342,900 19,050 NTN Angular Contact Ball Bearings NF3221 105 190 65,1 ISO Cylindrical Roller Bearings NU3240 200 360 128 ISO Cylindrical Roller Bearings PCJ404624 63.500 73.025 NTN Needle Roller Bearings PCM 081008 E 8 10 8 SKF Plain Bearings RI-3332ZZ 2,38 4,762 2,38 NMB Deep Groove Ball Bearings RT-758 304,8 SIGMA Thrust Roller Bearings SIL 08 8 CX Plain Bearings XLS-81/4 8.2500 11.0000 1.3750 MRC ANGULAR CONTACT BALL BEARINGS 6212RSNR 60 110 22 FAG DEEP GROOVE BALL BEARINGS
Hot number：NSK 24130CE4 CX 6224-2RS KOYO BTM172515 FBJ FR3 NMB HR25 NBS K89424-M INA NKIS60 ISB R188 LS SIGEW100ES FAG NU2308E Andrews 2282 FAG GS81104 FAG KR26C.DZ.2RS FED 2305SA New Departure 473L15 AST AST40 0815 AST AST650 202840 NTN EE243192/243250 INA EGB110115-E40 NTN LM247748D/LM247710A+A NSK MFH-1010 ISO NA4876 CX NJ3876 NSK NU 217 EM SKF NU 319 ECML SKF W 61706 R INA 956 CONSOLIDATED NU-1028 CONSOLIDATED 53244-U CONSOLIDATED 8502NR
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