d - 2 mm

D - 5 mm

B - 2.5 mm

d₁ - - 2.7 mm

D₂ - - 4.4 mm

D₃ - 6.2 mm

C - 0.6 mm

r_1,2 - min. - 0.1 mm

d_a - min. - 2.6 mm

r_a - max. - 0.1 mm

Basic dynamic load rating - C - 0.094 kN

Basic static load rating - C₀ - 0.025 kN

Fatigue load limit - P_u - 0.001 kN

Reference speed - 200000 r/min

Limiting speed - 100000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 6.5

Mass bearing - 0.00025 kg

• Model Number:W 638/2 XR-2Z
• Inner Diameter：5mm Outer Diameter：2mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:Medical equipment,Broadcasting System,chuck industry,water,Pest Monitoring,shoe-making machinery,Display Devices,diving equipment,wall materials,hydraulic pressure gauge,enzyme
• Similar models:ZEN S638 SKF W63800R SKF W63803 SKF W63806-2Z SKF W638/1.5R-2Z AST 638H ISB SS63800-ZZ SKF W638/2X-2Z CYSD 1638-2RS SKF W638/8-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W638/2XR-2Z products，there is large inventory of SKF W 638/2 XR-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/2 XR-2Z Which SKF W638/2XR-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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  22309EAKW33	45,000	100,000	36,000	SNR	Spherical Roller Bearings
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  32044 AX	220	340	76	CX	Tapered Roller Bearings
  52BWKH01		126		NSK	Angular Contact Ball Bearings
  6580R/6535	88,9	161,925	53,975	KOYO	Tapered Roller Bearings
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  AX 5 30 47	30	47	5	Timken	Needle Roller Bearings
  CF10-1				AST	Needle Roller Bearings
  GEG15ET-2RS	15	30		AST	Plain Bearings
  K80X88X30	80	92		KOYO	Needle Roller Bearings
  K81218J	90,000	120,000		NTN	Thrust Roller Bearings
  M804049/M804010	47,625	88,9	25,4	Timken	Tapered Roller Bearings
  NAO 12x28x12	12	22		NBS	Needle Roller Bearings
  NNU4988 V	440	600	160	CX	Cylindrical Roller Bearings
  7302BE2RS	15	42	13	INA	ANGULAR CONTACT BALL BEARINGS
  R0310	.0469	.1562	.0625	FAG	DEEP GROOVE BALL BEARINGS
  32213J2	65	120	31	SKF	TAPERED ROLLER BEARINGS
  UCP213-208T	2.5000			NTN	PILLOW BLOCKS
  5314	70	150	63.5	CONSOLIDATED	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS