d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

b - 6 mm

d2 - 72,7 mm

r1 min. - 2 mm

r2 min. - 2 mm

D1 - 96,2 mm

K - 3 mm

da min. - 66 mm

Da max. - 109 mm

ra max. - 2 mm

Weight - 1,7 Kg

Basic dynamic load rating (C) - 156 kN

Basic static load rating (C0) - 166 kN

Fatigue load limit (Pu) - 18,6

Reference speed - 5600 r/min

Limiting speed - 7500 r/min

Calculation factor (e) - 0,24

Calculation factor (Y0) - 2,8

Calculation factor (Y1) - 2,8

Calculation factor (Y2) - 4,2

• Model Number:21311EK
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Spherical Roller Bearings
• Update date：2025-12-16
• Application:Industrial,Solenoid Valves,training beds etc,dye pigments,equipment,pump,hook,nail products,altimeter etc,Cylinder Standard,Air
• Similar models:FAG 21311-E1-K+H311 SNR 21311VK ISO 21311KCW33+AH311 CX 21311KCW33+H311 ISB 21311K+AHX311 ISO 21311KCW33+H311 ISB 21311EKW33+H311 ISO 21311W33 CX 21311KCW33+AH311 NSK 21311EAKE4
• BEARING POWER International Trading Co.,Ltd. specialize in 21311EK products，there is large inventory of SKF 21311EK . We has been built up long-term cooperation with SKF company, could make a bulk order of the 21311EK Which SKF 21311EK 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
  1220 K+H220	90	180	34	ISB	Self-Aligning Ball Bearings
  23124EMW33	120,000	200,000	62,000	SNR	Thrust Roller Bearings
  23292CA/W33	460	830	296	SKF	Spherical Roller Bearings
  33109A	45	80	26	ZVL	Tapered Roller Bearings
  4308	40	90	33	FBJ	Deep Groove Ball Bearings
  4T-M86643/M86610	25,4	64,292	21,433	NTN	Tapered Roller Bearings
  6211	55	100	21	KOYO	Deep Groove Ball Bearings
  E32922J	110	150	25	NACHI	Tapered Roller Bearings
  KV25X32X31.3	25,000	32,000		NTN	Needle Roller Bearings
  NF324	120	260	55	ISO	Cylindrical Roller Bearings
  NUP2218-E-MPA	90	160	40	NKE	Cylindrical Roller Bearings
  AN38			1.1350	SKF	LOCKNUTS
  63817-2RS	85	110	19	ELGES	DEEP GROOVE BALL BEARINGS
  B20-LNMSS	1.2500	2.0000	1.0937	RBC	SPHERICAL PLAIN BEARINGS
  LJ-3/4-2Z	.7500	1.8750	.5625	RHP	DEEP GROOVE BALL BEARINGS
  F689	9	17	4	NTN	DEEP GROOVE BALL BEARINGS
  231/560	560	920	280	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  62214-2RS	70	125	31	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  SIL10C	10		9	CONSOLIDATED	ROD ENDS
  SS1640-2RS	.8750	2.0000	.5625	CONSOLIDATED	DEEP GROOVE BALL BEARINGS