d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

b - 3,1 mm

d1 - 75,3 mm

f - 2,82 mm

r0 max. - 0,6 mm

r1 min. - 2 mm

r2 min. - 2 mm

C - 4,06 mm

D2 - 104 mm

D3 - 115,21 mm

D4 - 129,7 mm

ba min. - 3,5 mm

Ca max. - 6,88 mm

da min. - 66 mm

da max - 75,2 mm

Da max. - 109 mm

Db min. - 131 mm

ra max. - 2 mm

Weight - 1,5 Kg

Basic dynamic load rating (C) - 79,2 kN

Basic static load rating (C0) - 67 kN

Fatigue load limit (Pu) - 2,85

Reference speed - 10000 r/min

Limiting speed - 6300 r/min

Calculation factor (kr) - 0,05

• Model Number:311NR
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-18
• Application:bathroom facilities,Industrial Adhesive,Optical Instruments,other processing,journal lathe,non-motor vehicle Electric car,packing equipment,Forming mold,car,defogging and degreasing,Other machinery
• Similar models:ISB 6311NR Timken 311NPP SNR UK311+H SKF 6311-2Z/VA208 SKF W6204-2RS1/VP311 NTN 6311ZZNR NKE 6311-Z KOYO 4311 Timken 311NP NTN 6311LUNR
• BEARING POWER International Trading Co.,Ltd. specialize in 311NR products，there is large inventory of SKF 311NR . We has been built up long-term cooperation with SKF company, could make a bulk order of the 311NR Which SKF 311NR 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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