d - 4 mm

D - 10 mm

B - 3 mm

d₁ - - 5.9 mm

D₁ - - 8.2 mm

D₃ - 11.2 mm

C - 0.6 mm

r_1,2 - min. - 0.2 mm

d_a - min. - 5.6 mm

r_a - max. - 0.2 mm

Basic dynamic load rating - C - 0.553 kN

Basic static load rating - C₀ - 0.245 kN

Fatigue load limit - P_u - 0.011 kN

Reference speed - 130000 r/min

Limiting speed - 80000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 12.3

Mass bearing - 0.0011 kg

• Model Number: W 637/4 XR
• Inner Diameter：10mm Outer Diameter：4mm Width：3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-19
• Application:centrifugal pump,Warehouse Shelf Equipment,noise inspection,rubber products machinery and equipment,equipment and,office outdoor camping equipment,rolling machine,vacuum filter,non-ferrous metal alloy,pump accessories,welding equipment
• Similar models:SKF W637/8XR SKF W637/8-2ZS ISO 637 KOYO 637 AST 637HZZ SKF W637/4X FBJ 637 ISB SS637/3 SKF W637/2-2Z ISO 637-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in W637/4XR products，there is large inventory of SKF W 637/4 XR . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 637/4 XR Which SKF W637/4XR 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
  2207	35	72	23	AST	Self-Aligning Ball Bearings
  24124-E1-K30+AH+AH24124	120	200	80	FAG	Spherical Roller Bearings
  4T-2785/2720	33,338	76,2	23,812	NTN	Tapered Roller Bearings
  7208CDB	40	80	18	CYSD	Angular Contact Ball Bearings
  9310K	50	72	12	Timken	Deep Groove Ball Bearings
  KJ32×37×27S	32	37		NTN	Needle Roller Bearings
  K110X117X24	110,000	117,000		NTN	Needle Roller Bearings
  NK 18/20	18	26	20	NBS	Needle Roller Bearings
  NUP218-E-MPA	90	160	30	NKE	Cylindrical Roller Bearings
  UCF308-24	36,5125			KOYO	Bearing Units
  WTF450KVS5901Eg	450	595	368	NSK	Tapered Roller Bearings
  UEL205-100D1	1.0000	2.0472	.5906	NTN	PILLOW BLOCKS
  NNCF5036CV	180	280	136	SKF	CYLINDRICAL ROLLER BEARINGS
  MB150-SA	150	225	45	RBC	SPHERICAL PLAIN BEARINGS
  104S	20	42	9	MRC	DEEP GROOVE BALL BEARINGS
  FG3062EE	30	62	29	NADELLA	NEEDLE BEARINGS
  IR-6x10x10JSI	6		10	CONSOLIDATED	NEEDLE BEARINGS
  MB-20	100	120	10	CONSOLIDATED	LOCKWASHERS
  HK-1614-RS	22		14	CONSOLIDATED	NEEDLE BEARING
  KD-250XPO	25.0000	26.0000	.5000	CONSOLIDATED	FOUR POINT ANGULAR CONTACT BALL BEARINGS