d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 25 mm

ra1 max. - 2 mm

a - 24,5 mm

r min. - 2,5 mm

r1 min. - 2 mm

da min. - 67 mm

Da min - 104 mm

Da max. - 110 mm

db max. - 71 mm

Db min. - 111 mm

ra max. - 2 mm

Sa - 4 mm

Sb - 6,5 mm

Weight - 1,66 Kg

Basic dynamic load rating (C) - 155 kN

Basic static load rating (C0) - 179 kN

(Grease) Lubrication Speed - 3 300 r/min

(Oil) Lubrication Speed - 4 400 r/min

Calculation factor (e) - 0,35

Calculation factor (Y0) - 0,96

Calculation factor (Y2) - 1,74

• Model Number: 4T-30311
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-04-18
• Application:Rolling mill gear box,Broadcasting System,wall industry,altimeter etc,medical equipment,Storage Device,medical equipment,wheel lathe,vertical processing,plastic blow molding,hydraulic pump
• Similar models:NTN 30311D Timken X30311/Y30311 SKF 30311J2/Q KOYO 30311JR SNR 30311A NACHI E30311DJ NTN 4T-30311D KOYO 30311CR NTN 4T-30311DDF NSK HR30311DJ
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-30311 products，there is large inventory of NTN 4T-30311 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-30311 Which NTN 4T-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
  14118/14276	30	69,012	19,845	Timken	Tapered Roller Bearings
  22209 KCW33+AH309	45	85	23	ISO	Spherical Roller Bearings
  53314 U 314	70	125	44,2	ISB	Thrust Ball Bearings
  6009	45	75	16	FAG	Deep Groove Ball Bearings
  639/633	63.500	130.175	41.275	NACHI	Tapered Roller Bearings
  7000 ADB	10	26	16	ISO	Angular Contact Ball Bearings
  7022 B-UO	110	170	56	CX	Angular Contact Ball Bearings
  7084A	420	620	90	NSK	Angular Contact Ball Bearings
  ASTEPB 1820-15	18	20		AST	Plain Bearings
  B1710	26,988	33,338	15,88	KOYO	Needle Roller Bearings
  HK 6032	60	68	32	NBS	Needle Roller Bearings
  MK8121	12.700	17.462	19.050	KOYO	Needle Roller Bearings
  NN3984C1NAP4	420	560	106	NTN	Cylindrical Roller Bearings
  NU218	90	160	30	FBJ	Cylindrical Roller Bearings
  UCC320	100		108	KOYO	Bearing Units
  UKPE213H	60			SNR	Bearing Units
  L18SG408.2RSD	4.5000	5.2500	.5000	FAG	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  E2312B/U	60	130	46	Rollway	CYLINDRICAL ROLLER BEARINGS
  SSL-630ZZ	3	6	2.5	NMB	DEEP GROOVE BALL BEARINGS
  222S.507	290	188	80	CONSOLIDATED	SPLIT SPHERICAL ROLLER BEARINGS