d - 55 mm

D - 120 mm

B - 29 mm

d₁ - - 75.34 mm

D₂ - - 103.7 mm

D₃ - 115.21 mm

D₄ - 129.7 mm

b - 3.1 mm

C - 4.06 mm

f - 2.82 mm

r₀ - 0.6 mm

r_1,2 - min. - 2 mm

d_a - min. - 66 mm

d_a - max. - 75.2 mm

D_a - max. - 109 mm

D_b - min. - 131 mm

b_a - min. - 3.5 mm

C_a - max. - 6.88 mm

r_a - max. - 2 mm

Basic dynamic load rating - C - 79.2 kN

Basic static load rating - C₀ - 67 kN

Fatigue load limit - P_u - 2.8 kN

Reference speed - 10000 r/min

Limiting speed - 5000 r/min

Calculation factor minimum radial load - k_r - 0.05

Mass bearing - 1.5 kg

Snap ring - SP 120

• Model Number: 311-2ZNR
• Inner Diameter：120mm Outer Diameter：55mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-15
• Application:tower crane,engineering machinery,Hydraulic Couplings,marine analysis and testing equipment,wall industry,Spectrum Products,bio-chemical,thin metal materials,Film machine,intermediate,rolling mill roll neck and slowdown device
• Similar models:NSK BL311Z FBJ 4311-2RS NACHI 6311ZENR Timken 311KD ISB 6311-2RS SIGMA 6311 NTN-SNR 6311N SKF 6311-2RS1 NACHI UK211+H2311 KOYO 6311
• BEARING POWER International Trading Co.,Ltd. specialize in 311-2ZNR products，there is large inventory of SKF 311-2ZNR . We has been built up long-term cooperation with SKF company, could make a bulk order of the 311-2ZNR Which SKF 311-2ZNR 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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