d - 55 mm

D - 120 mm

T - 31.5 mm

B - 29 mm

C - 25 mm

a - 25.1 mm

r1 min. - 2.5 mm

r2 min. - 2.5 mm

r3 min. - 2 mm

r4 min. - 2 mm

Weight - 1.62 Kg

Basic dynamic load rating (C) - 146 kN

Basic static load rating (C0) - 170 kN

(Grease) Lubrication Speed - 3200 r/min

(Oil) Lubrication Speed - 4300 r/min

Calculation factor (e) - 0.35

Calculation factor (Y) - 1.7

Calculation factor (Y0) - 0.96

• Model Number: 30311J
• Inner Diameter：55mm Outer Diameter：120mm Width：31.5mm
• Type：Tapered Roller Bearings
• Update date：2025-04-20
• Application:Oral Image,Security Equipment,Storage Tool,security equipment,Broadcasting System,shoe-making machinery,equipment,Power equipment,hardware,raw material accessories,relay
• Similar models:ZVL 30311A CRAFT 30311 NTN 30311 NSK HR30311J KOYO 30311JR NACHI E30311J KOYO 46T30311JR/57 NTN 4T-30311DDF NSK HR30311DJ FBJ 30311
• BEARING POWER International Trading Co.,Ltd. specialize in 30311J products，there is large inventory of KBC 30311J . We has been built up long-term cooperation with KBC company, could make a bulk order of the 30311J Which KBC 30311J 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
  29880/29820DC+X1S-29880	266,7	323,85	63,5	Timken	Tapered Roller Bearings
  5204N	20	47	20.6	NACHI	Angular Contact Ball Bearings
  61707-2RS	35	44	5	ZEN	Deep Groove Ball Bearings
  6306-2ZNR	72	30	19	SKF	Deep Groove Ball Bearings
  635Z	5	19	6	NTN	Deep Groove Ball Bearings
  7230 C	150	270	45	ISO	Angular Contact Ball Bearings
  8503	17,000	40,000	14,288	NTN	Deep Groove Ball Bearings
  AST850BM 2425	24	27		AST	Plain Bearings
  CX590				CX	Wheel Bearings
  NAO 30x47x16	30	42		NBS	Needle Roller Bearings
  NU19/560	560	750	85	ISO	Cylindrical Roller Bearings
  RNAO22x30x13	22	30	13	ISO	Cylindrical Roller Bearings
  HE316	80	105		SKF	ADAPTERS
  127TV	7	22	7	FAG	SELF
  LS3047	30	47		INA	THRUST NEEDLE BEARINGS
  NU1972E	360	480	56	SKF	CYLINDRICAL ROLLER BEARINGS
  XLS-21	21.0000	28.0000	3.5000	NH	DEEP GROOVE BALL BEARINGS
  7384BMG	420	850	136	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS
  N-207	35	72	17	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  MI-47	2.9375		2.0100	CONSOLIDATED	NEEDLE BEARINGS