d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 22 mm

a - 29,8 mm

r min. - 2,5 mm

r2 min. - 2 mm

da min. - 67 mm

da max - 70 mm

Da min - 97 mm

Da max. - 108 mm

Db min. - 112 mm

ra max. - 2 mm

rb max. - 2 mm

Weight - 1,58 Kg

Basic dynamic load rating (C) - 144 kN

Basic static load rating (C0) - 161 kN

(Grease) Lubrication Speed - 3400 r/min

(Oil) Lubrication Speed - 4500 r/min

Calculation factor (e) - 0,55

Calculation factor (Y0) - 0,6

Calculation factor (Y1) - 1,1

• Model Number:30311CR
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-12-28
• Application:ship special,vertical pull,blood cell reagent,Performance test,climb ladder,auto tools,pipe fittings Steel industry,power tools,Pneumatic Control Elements,Generator,ECG
• Similar models:KBC 30311J NACHI E30311J Timken 30311 FBJ 30311D KOYO 30311CR KOYO 30311JR KOYO 46T30311DJR/49 ZVL 30311A CRAFT 30311 FAG 30311-A
• BEARING POWER International Trading Co.,Ltd. specialize in 30311CR products，there is large inventory of KOYO 30311CR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 30311CR Which KOYO 30311CR 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  230/500-E1A-MB1	500	720	167	FAG	Spherical Roller Bearings
  39KD	9	26	8	Timken	Deep Groove Ball Bearings
  33210	50	90	32	NKE	Tapered Roller Bearings
  62303-2RS	17	47	19	ISB	Deep Groove Ball Bearings
  6315-2Z	160	75	37	SKF	Deep Groove Ball Bearings
  7908DT	40	62	12	NTN	Angular Contact Ball Bearings
  AB41669	35	72	17	SNR	Deep Groove Ball Bearings
  B-1110	17,462	22,225	15,88	NSK	Needle Roller Bearings
  GT30	58,738	94,463	20,638	INA	Thrust Ball Bearings
  DAC35660037	35	66	37	ISO	Angular Contact Ball Bearings
  HM252349/10	260,35	422,275	86,121	ISO	Tapered Roller Bearings
  K43X48X27	43	48	27	FBJ	Needle Roller Bearings
  L812148/11	66,675	103,213	17,602	CX	Tapered Roller Bearings
  NP2226	130	230	64	ISO	Cylindrical Roller Bearings
  FX3/16	.1875	.3750	.1250	ADR	DEEP GROOVE BALL BEARINGS
  61905-2RZ	25	42	9	SKF	DEEP GROOVE BALL BEARINGS
  208-MFG	40	80	18	MRC	DEEP GROOVE BALL BEARINGS
  DCL1110			.6250	NTN	NEEDLE BEARINGS
  W608ZZ	8	22	7	SKF	DEEP GROOVE BALL BEARINGS
  NKI-45/25	45	62	25	CONSOLIDATED	NEEDLE BEARINGS