d - 55 mm

D - 72 mm

B - 9 mm

C - 9 mm

rn - 0,3 mm

a - 1,7 mm

b - 0,95 mm

f - 0,85 mm

r min. - 0,3 mm

r0 max. - 0,25 mm

D1 - 70,7 mm

D2 - 74,8 mm

da min. - 57 mm

da max - 59 mm

Da max. - 70 mm

ra max. - 0,3 mm

Dx - 76 mm

Cy - 2,3 mm

Cz - 0,9 mm

rn - 0,3 mm

Weight - 0,083 Kg

Basic dynamic load rating (C) - 8,8 kN

Basic static load rating (C0) - 8,1 kN

(Grease) Lubrication Speed - 8 700 r/min

(Oil) Lubrication Speed - 10 000 r/min

Calculation factor (f0) - 16,2

• Model Number: 6811NR
• Inner Diameter：55mm Outer Diameter：72mm Width：9mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-15
• Application:multi-knife lathe,ultra-quiet generators,Gas turbine,Pneumatic Actuator,machine lathe,Machine Tool Accessories,Surveying Surveying Instruments,stamping die,auto tools,Hydraulic Press,supporting facilities
• Similar models:KOYO 6811-2RD NTN 6811 NSK 6811N FBJ 6811 NTN 6811NR FBJ 6811ZZ NTN 6811ZZ NACHI 6811 NACHI 6811Z NSK 6811DDU
• BEARING POWER International Trading Co.,Ltd. specialize in 6811NR products，there is large inventory of NTN 6811NR . We has been built up long-term cooperation with NTN company, could make a bulk order of the 6811NR Which NTN 6811NR 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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