d - 4 mm

D - 8 mm

B - 3 mm

d₁ - - 5 mm

D₂ - - 7.4 mm

D₃ - 9.2 mm

C - 0.6 mm

r_1,2 - min. - 0.1 mm

d_a - min. - 4.8 mm

r_a - max. - 0.1 mm

Basic dynamic load rating - C - 0.225 kN

Basic static load rating - C₀ - 0.072 kN

Fatigue load limit - P_u - 0.003 kN

Reference speed - 150000 r/min

Limiting speed - 75000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 7.2

Mass bearing - 0.0006 kg

• Model Number: W 637/4 XR-2Z
• Inner Diameter：8mm Outer Diameter：4mm Width：3mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-22
• Application:E Beauty,Cylinder Type,insect experimental analysis instrument,Laser Cutting,lifting equipment Hoisting hoist,,Plastic Equipment,mechanical annex,Laser Devices,Automation,quality inspection equipment
• Similar models:SKF W637/8XR ISO 637-2RS KOYO 637 KOYO F637ZZ SKF W637/4XR-2Z NSK 637DD SKF W637/4XR SKF W637/4X SKF W637-2Z SKF W637/9R-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W637/4XR-2Z products，there is large inventory of SKF W 637/4 XR-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 637/4 XR-2Z Which SKF W637/4XR-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.

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  23160RHA	300	500	160	KOYO	Spherical Roller Bearings
  51418	90	187		CX	Thrust Ball Bearings
  5203ANS	17	40	17.5	NACHI	Angular Contact Ball Bearings
  6316 ZZ	80	170	39	ISO	Deep Groove Ball Bearings
  7048 BDT	240	360	112	ISO	Angular Contact Ball Bearings
  D/W SRI-1634-2ZS	25,4	19,05	3,967	SKF	Deep Groove Ball Bearings
  H7024C	120	180	28	AST	Angular Contact Ball Bearings
  K68X74X35ZW	68,000	74,000		NTN	Needle Roller Bearings
  KDX060	152,4	177,8	12,7	KOYO	Angular Contact Ball Bearings
  NA 4822	110	140	30	JNS	Needle Roller Bearings
  PSL 212-27	864	1028	110	PSL	Thrust Ball Bearings
  TUP2 90.40	90	95		CX	Plain Bearings
  UK316L3	80	170	55	KOYO	Deep Groove Ball Bearings
  XLJ9.1/2	241,3	323,85	41,275	RHP	Deep Groove Ball Bearings
  6200NR	10	30	9	FAG	DEEP GROOVE BALL BEARINGS
  6312K	60	130	31	STEYR	DEEP GROOVE BALL BEARINGS
  NJ344	220	460	88	STEYR	CYLINDRICAL ROLLER BEARINGS
  6011NR	55	90	18	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  12x19x3mm	12	19	3	CONSOLIDATED	OIL SEALS
  CRHSBC-52	1.5000	3.2500	1.7500	CONSOLIDATED	NEEDLE BEARINGS