d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 25 mm

a - 25,5 mm

r min. - 2,5 mm

r2 min. - 2 mm

da min. - 67 mm

da max - 71 mm

Da min - 104 mm

Da max. - 108 mm

Db min. - 111 mm

ra max. - 2 mm

rb max. - 2 mm

Weight - 1,65 Kg

Basic dynamic load rating (C) - 149 kN

Basic static load rating (C0) - 170 kN

(Grease) Lubrication Speed - 3300 r/min

(Oil) Lubrication Speed - 4500 r/min

Calculation factor (e) - 0,35

Calculation factor (Y0) - 0,96

Calculation factor (Y1) - 1,74

• Model Number: 30311JR
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-12-17
• Application:inorganic chemical,sheet industry,vertical processing,shoe-making machinery,container finishing,hydraulic connector,equipment and,other accessories,scientific instruments,Plastic Equipment,Infrared Technology
• Similar models:Fersa 30311F KOYO 46T30311DJR/49 CRAFT 30311 SKF 30311J2/Q CX 30311A KBC 30311J NACHI E30311DJ FAG 30311-A KOYO 30311CR KBC 30311DJ
• BEARING POWER International Trading Co.,Ltd. specialize in 30311JR products，there is large inventory of KOYO 30311JR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 30311JR Which KOYO 30311JR 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
  22328-E1	140	300	102	FAG	Spherical Roller Bearings
  315823	40	90	23	SKF	Cylindrical Roller Bearings
  323/22R	22	56	22,25	KOYO	Tapered Roller Bearings
  46248A	240	360	115	KOYO	Tapered Roller Bearings
  7015 CE/HCP4A	115	75	20	SKF	Angular Contact Ball Bearings
  71920 CE/P4AL	140	100	20	SKF	Angular Contact Ball Bearings
  7205A5TRSU	25	52	15	NSK	Angular Contact Ball Bearings
  7405 A-UD	25	80	42	CX	Angular Contact Ball Bearings
  ESP212	60			SNR	Bearing Units
  HSS71919-E-T-P4S	95	130	18	FAG	Angular Contact Ball Bearings
  NKX17T2	17	30		NTN	Complex Bearings
  NUP 408	40	110	27	NACHI	Cylindrical Roller Bearings
  RTUEY50	50			INA	Bearing Units
  USF204	20			SNR	Bearing Units
  89316			11	INA	THRUST ROLLER BEARINGS
  6322Z	110	240	50	FAG	DEEP GROOVE BALL BEARINGS
  6306YC78	30	72	19	SKF	DEEP GROOVE BALL BEARINGS
  N-1019-KMSP/5	95	145	24	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  87608NR	40	90	.9055	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  8609NR	45	100	.9844	CONSOLIDATED	DEEP GROOVE BALL BEARINGS