d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

a - 4,06 mm

b - 3,25 mm

f - 2,77 mm

r min. - 2 mm

r0 max. - 0,6 mm

r1 min. - 0,5 mm

D1 - 115,21 mm

D2 - 129,7 mm

da min. - 64 mm

Da max. - 111 mm

Weight - 1,37 Kg

Basic dynamic load rating (C) - 71,6 kN

Basic static load rating (C0) - 45 kN

(Grease) Lubrication Speed - 5600 r/min

(Oil) Lubrication Speed - 6700 r/min

Calculation factor (f0) - 13,2

• Model Number:6311NR
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2026-01-13
• Application:hydraulic connector,special broaching machine,hot and cold box,Hydraulic Couplings,wall industry,Storage Tool,metering pump,pipe fittings Steel industry,hinge industry,Performance test,floor industry
• Similar models:NSK 6311ZZ NTN 6311LUNR MB Bearing MR163110-2RS NTN 6311LLB AST 6311ZZ CRAFT 6311 CYSD 6311-Z KOYO 6311-2RS NTN-SNR 6311 KOYO M6311
• BEARING POWER International Trading Co.,Ltd. specialize in 6311NR products，there is large inventory of KOYO 6311NR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 6311NR Which KOYO 6311NR 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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  20248-MB	240	440	72	FAG	Spherical Roller Bearings
  21312VK	60,000	130,000	31,000	SNR	Spherical Roller Bearings
  23968YMB	340	460	90	Timken	Spherical Roller Bearings
  3909	45	85	28	INA	Thrust Ball Bearings
  42687/46260	76,2	127	30,162	FBJ	Tapered Roller Bearings
  6206/20HLC3	20	62	16	KBC	Deep Groove Ball Bearings
  6209DD	45	85	19	KBC	Deep Groove Ball Bearings
  95BIH430	241,3	323,85	41,275	Timken	Deep Groove Ball Bearings
  NJ2314	70	150	51	NTN	Cylindrical Roller Bearings
  R165.11				SNR	Wheel Bearings
  RNAF456220	45	62	20	JNS	Needle Roller Bearings
  SC03A59LLUC3/L347	17	59	20	NTN	Deep Groove Ball Bearings
  FT-7	.8750	1.8437		Andrews	THRUST BALL BEARINGS
  SCE2610			.6250	INA	NEEDLE BEARINGS
  4465	6.3750	9.1250		INA	THRUST BALL BEARINGS
  SN628	125		170	STEYR	PILLOW BLOCKS
  209	45	85	19	SKF	DEEP GROOVE BALL BEARINGS
  6306	30	72	19	STEYR	DEEP GROOVE BALL BEARINGS
  29414E	70	150		CONSOLIDATED	SPHERICAL ROLLER THRUST BEARINGS
  SS1621-2RS	.5000	1.3750	.4375	CONSOLIDATED	DEEP GROOVE BALL BEARINGS