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：2025-12-21
• Application:pump,E Beauty,horizontal processing,floor industry,non-motor vehicle Electric car,Oral Image,air purification,Laser Devices,marine test,construction machinery and equipment,mechanical and electrical
• Similar models:FBJ 30311D NTN 4T-30311D NTN 30311 KBC 30311J NTN 30311D ISO 30311 CYSD 30311 FAG 30311-A NKE 30311 KOYO 30311CR
• 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  32030XU	150	225	48	NTN	Tapered Roller Bearings
  3215 A	75	130	41,3	ISB	Angular Contact Ball Bearings
  4R4039	200	270	170	NTN	Cylindrical Roller Bearings
  511/600-FP	600	710	85	NKE	Thrust Ball Bearings
  51309	45	85	28	NACHI	Thrust Ball Bearings
  5245				Ruville	Wheel Bearings
  55175/55437	44,45	111,125	30,162	Timken	Tapered Roller Bearings
  6318 ZZ	90	190	43	CX	Deep Groove Ball Bearings
  7216CGD2/GNP4	80	140	26	NTN	Angular Contact Ball Bearings
  7332 A	160	340	68	ISO	Angular Contact Ball Bearings
  GTR 385230	38	52	30	IKO	Needle Roller Bearings
  D19	41,275	75,413	20,65	INA	Thrust Ball Bearings
  K19,3x25,3x19,8TN	19	25,3		MPZ	Needle Roller Bearings
  Q313	65	140	33	CX	Angular Contact Ball Bearings
  KT 303517	30	35		IKO	Needle Roller Bearings
  PSL 612-331	682,625	1080	660	TMB	Tapered Roller Bearings
  UCP210-31	49,2125		51,6	FYH	Bearing Units
  UCTX14	70			NACHI	Bearing Units
  NUP2311E	55	120	43	FAG	CYLINDRICAL ROLLER BEARINGS
  6820DD	100	125	13	NSK	DEEP GROOVE BALL BEARINGS