d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 25 mm

a - 25 mm

r1 min. - 2,5 mm

r2 min. - 2,5 mm

r3 min. - 2 mm

r4 min. - 2 mm

da max - 71 mm

Da min - 104 mm

db min - 65 mm

Db min. - 111 mm

Weight - 1,8 Kg

Basic dynamic load rating (C) - 159 kN

Basic static load rating (C0) - 167 kN

Limiting speed - 5600 r/min

Calculation factor (e) - 0,34

Calculation factor (Y) - 1,74

Calculation factor (Y0) - 0,96

• Model Number: 30311
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:Infrared Technology,motor,printing machinery,Optical detection,leather processing,generator,Industrial,metallurgical mold,mechanical and electrical,granulator,Industrial Electromechanical
• Similar models:NTN 430311XU FBJ 30311 KOYO 46T30311JR/57 KOYO 30311JR NSK HR30311J Fersa 30311F SNR 30311A Timken 30311 ISO 30311 CYSD 30311
• BEARING POWER International Trading Co.,Ltd. specialize in 30311 products，there is large inventory of NKE 30311 . We has been built up long-term cooperation with NKE company, could make a bulk order of the 30311 Which NKE 30311 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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  29448 M	240	440		CX	Thrust Roller Bearings
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  49576/49520	44,45	101,6	31,75	Timken	Tapered Roller Bearings
  6216NR	80	140	26	SKF	Deep Groove Ball Bearings
  6216ZZ	80	140	26	KBC	Deep Groove Ball Bearings
  6306	30	72	19	KBC	Deep Groove Ball Bearings
  AST20 4040	40	44		AST	Plain Bearings
  7214DTBT	70,000	125,000	96,000	NTN	Angular Contact Ball Bearings
  K20x24x13	20	24	13	CX	Needle Roller Bearings
  N1928-K-M1-SP	140	190	24	FAG	Cylindrical Roller Bearings
  N2932	160	220	36	ISO	Cylindrical Roller Bearings
  NK16/16	16	24	16	FBJ	Needle Roller Bearings
  NU206	30	62	16	KOYO	Cylindrical Roller Bearings
  NU38/670	670,000	820,000	112,000	NTN	Cylindrical Roller Bearings
  NUP3317	85	180	73	CX	Cylindrical Roller Bearings
  R55-24UQU42	55	90	24	NSK	Tapered Roller Bearings
  RSTO25	52		15.8	INA	NEEDLE BEARINGS
  210-SZ	90	50	20	MRC	DEEP GROOVE BALL BEARINGS
  NJ2322E	110	240	80	STEYR	CYLINDRICAL ROLLER BEARINGS
  FR-6-ZZ	.3750	.8750	.2812	CONSOLIDATED	DEEP GROOVE BALL BEARINGS