d - 55 mm

D - 120 mm

T - 31,5 mm

B - 29 mm

C - 22 mm

a - 29,8 mm

r min. - 2,5 mm

r2 min. - 2 mm

da min. - 67 mm

da max - 70 mm

Da min - 97 mm

Da max. - 108 mm

Db min. - 112 mm

ra max. - 2 mm

rb max. - 2 mm

Weight - 1,58 Kg

Basic dynamic load rating (C) - 144 kN

Basic static load rating (C0) - 161 kN

(Grease) Lubrication Speed - 3400 r/min

(Oil) Lubrication Speed - 4500 r/min

Calculation factor (e) - 0,55

Calculation factor (Y0) - 0,6

Calculation factor (Y1) - 1,1

• Model Number: 30311CR
• Inner Diameter：55mm Outer Diameter：120mm Width：31,5mm
• Type：Tapered Roller Bearings
• Update date：2025-04-22
• Application:Security Equipment,transistor fittings,other accessories,surgical instruments,forming machine,crimping tools,Storage Tool,ultra-quiet generators,root canal filling,Technical Equipment,switch
• Similar models:KOYO 30311CR FAG 30311-A KBC 30311J FBJ 30311D SNR 30311A NSK HR30311DJ Fersa 30311F NTN 4T-30311D ISO 30311 CX 30311A
• BEARING POWER International Trading Co.,Ltd. specialize in 30311CR products，there is large inventory of KOYO 30311CR . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 30311CR Which KOYO 30311CR 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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  2928	140	185	31	FBJ	Thrust Ball Bearings
  32313	65	140	51	CRAFT	Tapered Roller Bearings
  45268	340	520	133	KOYO	Tapered Roller Bearings
  6203-C-2HRS	17	40	12	FAG	Deep Groove Ball Bearings
  6310-2RD	50	110	27	KOYO	Deep Groove Ball Bearings
  B7019-C-2RSD-T-P4S	95	145	24	FAG	Angular Contact Ball Bearings
  CSCA055	139,7	152,4	6,35	INA	Deep Groove Ball Bearings
  FR3	4,763	12,7	3,967	ZEN	Deep Groove Ball Bearings
  IJ223001				ILJIN	Angular Contact Ball Bearings
  NF217	85	150	28	CRAFT	Cylindrical Roller Bearings
  NK 14/20 XL	14	22	20	INA	Needle Roller Bearings
  RNA6909	52	68	40	KOYO	Needle Roller Bearings
  SB209	45	85	36	CRAFT	Deep Groove Ball Bearings
  W211PP5	1.5000	4.0000	1.7500	FAF	AGRICULTURAL BALL BEARINGS
  RK6-25E1Z	534	742.3		KAYDON	SLEWING BEARINGS
  AXK100135	100	135	4	INA	THRUST NEEDLE BEARINGS
  GS81109	47	65		Torrington	THRUST ROLLER BEARINGS
  MM90BS160P/4	90	160	30	CONSOLIDATED	ANGULAR CONTACT BALL SCREW SUPPORT BEARINGS