d - 9 mm

D - 17 mm

B - 6 mm

d₂ - - 10.7 mm

D₂ - - 15.2 mm

r_1,2 - min. - 0.2 mm

d_a - min. - 10.3 mm

d_a - max. - 10.6 mm

D_a - max. - 15.4 mm

r_a - max. - 0.2 mm

Basic dynamic load rating - C - 0.761 kN

Basic static load rating - C₀ - 0.335 kN

Fatigue load limit - P_u - 0.014 kN

Reference speed - 85000 r/min

Limiting speed - 43000 r/min

Calculation factor - k_r - 0.02

Calculation factor - f₀ - 7.7

Mass bearing - 0.0049 kg

• Model Number: W 638/9-2Z
• Inner Diameter：17mm Outer Diameter：9mm Width：6mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-13
• Application:Hydraulic Press,motor,motorcycle,Spectrum Products,Industrial Electromechanical,spreader series,spring industry,Pneumatic Actuator,car shock absorber,coal,orthodontic material
• Similar models:SKF W63800-2Z ZEN S63800-2Z CX 63803ZZ SKF W63801-2RZ ZEN S63800 ISB SS638/4-ZZ KOYO 638-2RD ZEN SF63800 ISO 63802 SKF W638/2X-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in W638/9-2Z products，there is large inventory of SKF W 638/9-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 638/9-2Z Which SKF W638/9-2Z 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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