d - 280 mm

D - 500 mm

B - 90 mm

d₁ - - 365 mm

D₁ - - 415 mm

a - 390 mm

h - 12.5 mm

b - 15 mm

r₀ - 2.5 mm

r_1,2 - min. - 5 mm

d_a - min. - 302 mm

D_a - max. - 478 mm

r_a - max. - 4 mm

Basic dynamic load rating - C - 728 kN

Basic static load rating - C₀ - 1460 kN

Fatigue load limit - P_u - 31.5 kN

Reference speed - 1300 r/min

Limiting speed - 2000 r/min

Calculation factor - k_a - 0.9

Calculation factor - e - 1.34

Calculation factor - X - 0.54

Calculation factor - Y₀ - 0.44

Calculation factor - Y₁ - 0.47

Calculation factor - Y₂ - 0.81

Mass bearing - 82 kg

• Model Number: QJ 1256 N2MA
• Inner Diameter：500mm Outer Diameter：280mm Width：90mm
• Type：Angular Contact Ball Bearings
• Update date：2025-12-17
• Application:tapered grinder,Surveying Surveying Instruments,heating fans,glass processing machine,Industrial Adhesive,Industrial,food add,generator,Roller mill,welding equipment,Equipment
• Similar models:CX QJ1256 SKF QJ1256N2MA ISO QJ1256
• BEARING POWER International Trading Co.,Ltd. specialize in QJ1256N2MA products，there is large inventory of SKF QJ 1256 N2MA . We has been built up long-term cooperation with SKF company, could make a bulk order of the QJ 1256 N2MA Which SKF QJ1256N2MA 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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