d - 8 mm

D - 28 mm

B - 6 mm

C - 6 mm

d1 - 14,8 mm

d2 - – mm

r1 min. - 10,4 mm

r2 min. - 10,4 mm

D1 - 22,6 mm

D2 - 0,3 mm

da min. - 14,7 mm

Da max. - 25,6 mm

ra max. - 0,3 mm

Weight - 0,03 Kg

Basic dynamic load rating (C) - 1,33 kN

Basic static load rating (C0) - 0,57 kN

Fatigue load limit (Pu) - 0,024

Reference speed - 60000 r/min

Limiting speed - 30000 r/min

Calculation factor (f0) - 12

Calculation factor (kr) - 0,03

• Model Number: 638-RZ
• Inner Diameter：8mm Outer Diameter：28mm Width：6mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-25
• Application:enzyme,garbage disposal,other rubber,position switch,chamfering machine etc,medical equipment,gear grinding machine,power tools,Safety protection,medical equipment,tire industry
• Similar models:SKF W63802-2RS1 ZEN SF63800-2Z ISB F63803ZZ SKF W638/4X-2Z SKF W638-2RS1 ZEN 638-2Z ISB 63801-ZZ SKF W63803 SKF W638/8R-2Z SKF W638/2XR-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in 638-RZ products，there is large inventory of SKF 638-RZ . We has been built up long-term cooperation with SKF company, could make a bulk order of the 638-RZ Which SKF 638-RZ 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  100RJ02	100	165		Timken	Cylindrical Roller Bearings
  24096 ECA/W33	700	480	218	SKF	Spherical Roller Bearings
  308KDD	40	90	23	Timken	Deep Groove Ball Bearings
  30BD40A-T12DDF2CG01	30	55	23	NSK	Angular Contact Ball Bearings
  591/670	670	800	78	ISB	Thrust Ball Bearings
  6018ZZNR	90,000	140,000	24,000	NTN	Deep Groove Ball Bearings
  71828 C	140	175	18	ISO	Angular Contact Ball Bearings
  7211C	55	100	21	KOYO	Angular Contact Ball Bearings
  88925/88126	234,95	320,675	50,8	Timken	Tapered Roller Bearings
  B-7976-C	184,15	406,4	203,2	Timken	Thrust Roller Bearings
  CX415L				CX	Wheel Bearings
  K45X52X18	45,000	52,000		NTN	Needle Roller Bearings
  N 1009 KTN/HC5SP	45	75	16	SKF	Cylindrical Roller Bearings
  RASE20-FA164	20			INA	Bearing Units
  RNA 4913UU	72	90	25	IKO	Needle Roller Bearings
  SAF610	1.7500			FAG	PILLOW BLOCKS
  RCT-49A	12.3400	12.7500		INA	THRUST ROLLER BEARINGS
  6917ZZ	85	120	18	NSK	DEEP GROOVE BALL BEARINGS
  W-5/8				CONSOLIDATED	THRUST BALL BEARINGS
  121-KR	105	160	26	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS