d - 4 mm

D - 10 mm

B - 3 mm

C - 3 mm

d1 - 5,9 mm

d2 - – mm

r1 min. - 0,2 mm

r2 min. - 0,2 mm

D1 - 8,2 mm

D2 - – mm

da min. - 5,6 mm

Da max. - 8,4 mm

ra max. - 0,2 mm

Weight - 0,001 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 - 130000 r/min

Limiting speed - 80000 r/min

Calculation factor (f0) - 12

Calculation factor (kr) - 0,02

• Model Number:W637/4X
• Inner Diameter：4mm Outer Diameter：10mm Width：3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-10
• Application:printing machinery,dye pigments,blood cell reagent,tapered grinder,roller lathe,generator,bag machine,Oral Equipment,root canal filling,Processing machinery,water protection
• Similar models:SKF W637-2Z SKF W637/5X-2Z AST 637H-2RS SKF W637/9-2Z SKF W637-2RS1 NSK 637VV SKF W637/5X-2ZS FBJ 637 INA F-238637.02.KL SKF W637/4X-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W637/4X products，there is large inventory of SKF W637/4X . We has been built up long-term cooperation with SKF company, could make a bulk order of the W637/4X Which SKF W637/4X 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
  4T-2582/2523	31,75	69,85	23,812	NTN	Tapered Roller Bearings
  6048D2	240,000	360,000	112,000	NTN	Deep Groove Ball Bearings
  6807N	35	47	7	NTN	Deep Groove Ball Bearings
  698	8	19	6	FBJ	Deep Groove Ball Bearings
  7334 C-UD	170	360	144	CX	Angular Contact Ball Bearings
  ARZ 12 40 61	40	61	12	Timken	Needle Roller Bearings
  B-910	14,288	19,05	15,88	NSK	Needle Roller Bearings
  HR30332J	160	340	75	NSK	Tapered Roller Bearings
  K28X36X20FV	28	36		Timken	Needle Roller Bearings
  NX 35	35	47	30	ISO	Complex Bearings
  RN216-E-MPBX	80	127,3	26	FAG	Cylindrical Roller Bearings
  SA20ET-2RS	20		16	AST	Plain Bearings
  120428	.7500	1.2500	1.7500	BAL	JOURNAL ROLLER ASSEMBLIES
  5413A	65	160	71.44	SKF	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  6030.2Z	150	225	35	SKF	DEEP GROOVE BALL BEARINGS
  NN-3021-KMSP/5	105	160	41	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  IR-7x10x12	7		12	CONSOLIDATED	NEEDLE BEARINGS
  239/1600	1600	2060	345	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  TN-212	60			CONSOLIDATED	PILLOW BLOCKS
  TPFY-112	1.7500			CONSOLIDATED	THERMOPLASTIC PILLOW BLOCKS