d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

r min. - 2 mm

da min. - 65 mm

Da max. - 110 mm

ra max. - 2 mm

Weight - 1,71 Kg

Basic dynamic load rating (C) - 145 kN

Basic static load rating (C0) - 163 kN

(Grease) Lubrication Speed - 3 700 r/min

(Oil) Lubrication Speed - 4 800 r/min

Calculation factor (e) - 0,25

Calculation factor (Y0) - 2,63

Calculation factor (Y1) - 2,69

Calculation factor (Y2) - 4,01

• Model Number:21311
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Spherical Roller Bearings
• Update date：2025-12-09
• Application:centrifugal pump,ventilator anesthesia machine etc,baler,aerial work equipment,paint paint,inorganic chemical,ECG,ultra-quiet generators,switch,hydraulic connector,embroidery cloth
• Similar models:CX 21311KCW33 AST 21311MBKW33 FAG 21311-E1-K+AHX311 ISB 21311K KOYO 21311RH ISB 21311K+AHX311 ISO 21311KCW33+H311 SNR 21311V AST 21311MB CX 21311CW33
• BEARING POWER International Trading Co.,Ltd. specialize in 21311 products，there is large inventory of NTN 21311 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 21311 Which NTN 21311 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
  48290/48220D+X2S-48290	127	182,562	85,728	Timken	Tapered Roller Bearings
  3306	30	72	30,2	CYSD	Angular Contact Ball Bearings
  4T-02476/02420	31,75	68,262	22,225	NTN	Tapered Roller Bearings
  4T-4395/4335	42,07	90,488	39,688	NTN	Tapered Roller Bearings
  51115	75	100		AST	Thrust Ball Bearings
  52316	65	140	79	FAG	Thrust Ball Bearings
  54218	75	135	69	KOYO	Thrust Ball Bearings
  CF52				AST	Needle Roller Bearings
  E 240 /NS 7CE1	40	80	18	SNFA	Angular Contact Ball Bearings
  KR 16 X	6	16	28	SKF	Cylindrical Roller Bearings
  SQL 12 C RS-1				ISB	Plain Bearings
  UCT207-21	33,3375			KOYO	Bearing Units
  MB-6	30	38	5	FAG	LOCKWASHERS
  SC205	25	52	15	FYH	DEEP GROOVE BALL BEARINGS
  NCF1864V	320	400	38	SKF	CYLINDRICAL ROLLER BEARINGS
  AH3038	190	180		STEYR	WITHDRAWAL SLEEVES
  62214-2RS1	70	125	31	SKF	DEEP GROOVE BALL BEARINGS
  AH2264	320	300		STEYR	WITHDRAWAL SLEEVES
  GE60FW-2RS	60	105	63	INA	SPHERICAL PLAIN BEARINGS
  6312K.2RS	60	130	31	STEYR	DEEP GROOVE BALL BEARINGS