d - 2 mm

D - 5 mm

B - 2,5 mm

C - 2,5 mm

d1 - 2,7 mm

d2 - – mm

r1 min. - 2,6 mm

r2 min. - 2,6 mm

D1 - 4,4 mm

D2 - 0,1 mm

da min. - 2,6 mm

Da max. - 4,5 mm

ra max. - 0,1 mm

Weight - 0,0002 Kg

Basic dynamic load rating (C) - 0,094 kN

Basic static load rating (C0) - 0,025 kN

Fatigue load limit (Pu) - 0,001

Reference speed - 200000 r/min

Limiting speed - 100000 r/min

Calculation factor (f0) - 6,5

Calculation factor (kr) - 0,02

• Model Number: W638/2X-2Z
• Inner Diameter：2mm Outer Diameter：5mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-21
• Application:animal,tube,Embroidery,car steering pin,Garment Accessories,Anti-defibrillation pacing,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,DC generators,metallurgy,comprehensive experiment,Food testing
• Similar models:ISB 638-RZ FBJ 1638 ZEN 63802-2RS SKF W638/5R-2Z ISB F63803ZZ SKF W638-2RZ ZEN 63803-2RS ZEN SF63800-2Z SKF 638/8-2Z SKF W63806R-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W638/2X-2Z products，there is large inventory of SKF W638/2X-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W638/2X-2Z Which SKF W638/2X-2Z 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
  170RN91	170	248		Timken	Cylindrical Roller Bearings
  53317U+U317	85	150		ISO	Thrust Ball Bearings
  32234J2/DF	170	310	182	SKF	Tapered Roller Bearings
  3NCHAC913C	65	90	13	KOYO	Angular Contact Ball Bearings
  6817-2RS	85	110	13	CYSD	Deep Groove Ball Bearings
  AST11 3230	32	36		AST	Plain Bearings
  AXK1226	12	26	2	Timken	Needle Roller Bearings
  BTM1813	18	25	13	KOYO	Needle Roller Bearings
  CX636				CX	Wheel Bearings
  KFX050	127	165,1	19,05	KOYO	Angular Contact Ball Bearings
  NJ2204 ET	20	47	18	NSK	Cylindrical Roller Bearings
  NP3244	220	400	144	CX	Cylindrical Roller Bearings
  NU332-E-M6	160	340	68	NKE	Cylindrical Roller Bearings
  X32944/Y32944	220	300	51	Timken	Tapered Roller Bearings
  3314	70	150	35	New Departure	DEEP GROOVE BALL BEARINGS
  S-516M	1.0000			Sealmaster (Old No.)	PILLOW BLOCKS
  A-5068WB	340	520	133	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  NF-301	12	37	12	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  H-3024x110	120	145		CONSOLIDATED	ADAPTERS
  RNA-2207-2RS	72		22.8	CONSOLIDATED	NEEDLE BEARINGS