d - 4 mm

D - 10 mm

B - 4 mm

C - 4 mm

C - 0,8 mm

D3 - 11,6 mm

Weight - 0,0015 Kg

Basic dynamic load rating (C) - 0,553 kN

Basic static load rating (C0) - 0,245 kN

Fatigue load limit (Pu) - 0,011

Reference speed - – r/min

Limiting speed - 36 000 r/min

• Model Number: W 638/4 XR-2RS1
• Inner Diameter：4mm Outer Diameter：10mm Width：4mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-13
• Application:decoration machinery,EEG,crimping tools,Antenna Industry,outdoor equipment,Safety protection,Cylinder Pneumatic Treatment Element,Spectrum Products,spreader series,Low-voltage electrical equipment,supporting facilities
• Similar models:ZEN 638-2RS SKF W63800R SKF W63802-2Z FBJ 1638ZZ SKF W638/1.5-2Z ISO 63802-2RS ISO 63803ZZ SKF W638/3-2RS1 ZEN S638-2Z ZEN 63802-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W638/4XR-2RS1 products，there is large inventory of SKF W 638/4 XR-2RS1 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/4 XR-2RS1 Which SKF W638/4XR-2RS1 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
  306WG	30	72	19	Timken	Deep Groove Ball Bearings
  32313J	65	140	51	KBC	Tapered Roller Bearings
  6313-Z-NR	65	140	33	NKE	Deep Groove Ball Bearings
  7006CDB	30	55	13	CYSD	Angular Contact Ball Bearings
  71905 ACE/HCP4AH	42	25	9	SKF	Angular Contact Ball Bearings
  AST50 12IB16	19,05			AST	Plain Bearings
  MK11101	17.462	22.225	15.880	KOYO	Needle Roller Bearings
  NJ2215-E-MA6+HJ2215-E	75	130	31	NKE	Cylindrical Roller Bearings
  NJ3208	40	80	30,2	CX	Cylindrical Roller Bearings
  NU3868	340	420	60	ISO	Cylindrical Roller Bearings
  RNA6903	22	30	23	SKF	Needle Roller Bearings
  SIA110ES	110			LS	Plain Bearings
  1122	160	110		Aetna	THRUST BALL BEARINGS
  HW-7/16				INA	THRUST BALL BEARINGS
  MR104ZZS	4	10	4	ISC	DEEP GROOVE BALL BEARINGS
  LJT13/8	1.3750	3.0000	.6875	RHP	ANGULAR CONTACT BALL BEARINGS
  Z99AE015	.9375	2.0472	.5906	New Departure	BALL BEARINGS
  18APPL	105	190	36	RIV	DEEP GROOVE BALL BEARINGS
  RMS-31	13.0000	23.5000	4.0000	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  62813-ZZ	65	85	13	CONSOLIDATED	DEEP GROOVE BALL BEARINGS