d - 8 mm

D - 28 mm

B - 9 mm

C - 9 mm

r min. - 0,3 mm

db max. - 12,8 mm

Db min. - 22,8 mm

rb max. - 0,3 mm

Weight - 0,0286 Kg

Basic dynamic load rating (C) - 4,55 kN

Basic static load rating (C0) - 1,97 kN

(Grease) Lubrication Speed - 28 000 r/min

• Model Number: 638 ZZ1
• Inner Diameter：8mm Outer Diameter：28mm Width：9mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:hook,position switch,physical instruments,chamfering machine etc,animal anatomy,medical equipment,Optical detection,air conditioning tools,Automation,education model Instruments,Infrared Technology
• Similar models:SKF 638/4-2Z ISB 638-RZ ISB 638ZZ ZEN 63801-2RS ZEN 63800-2RS ISB SS638/8-ZZ CYSD 1638-2RS NSK 638DD ISB 638 CX 63800ZZ
• BEARING POWER International Trading Co.,Ltd. specialize in 638ZZ1 products，there is large inventory of NSK 638 ZZ1 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 638 ZZ1 Which NSK 638ZZ1 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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