Bearings, units and housings -- Roller bearings -- Spherical roller bearings -- Spherical roller bearings -- SKF 21311 E

21311 E

SKF Explorer

Dimensions

d		55	mm
D		120	mm
B		29	mm
d₂	≈	72.7	mm
D₁	≈	96.2	mm
b		6	mm
K		3	mm
r_1,2	min.	2	mm

Abutment dimensions

d_a	min.	66	mm
D_a	max.	109	mm
r_a	max.	2	mm

Calculation data

Basic dynamic load rating	C	159	kN
Basic static load rating	C₀	163	kN
Fatigue load limit	P_u	18	kN
Reference speed		5600	r/min
Limiting speed		7500	r/min
Calculation factor	e	0.24
Calculation factor	Y₁	2.8
Calculation factor	Y₂	4.2
Calculation factor	Y₀	2.8

Mass

Mass bearing

1.7

Model Number: 21311 E
Inner Diameter：55mm Outer Diameter：120mm Width：29mm
Reference speed:7500 r/min Limiting speed:5600 r/min
Type：Bearings, units and housings Roller bearings Spherical roller bearings Spherical roller bearings
Details： Spherical roller bearings
Update date：2026-07-24
Application:container finishing,storage shelves,welding equipment,electromyography machine,horizontal processing,motor,aerial work equipment,rolling machine,directional control valve,tooth filling,Machine Tool Accessories
Similar models:21311 E BD-21311 EK-AHX 311 21311 EK BD-21311 EK-H 311
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Model No. Inner Diameter Outer Diameter Width Type

1309 EKTN9 + H 309
7011 ACB/P4A
6056
D/W R1-4 R-2ZS
SYFWR 1.1/2 YZTHR

Purchase the SKF 21311 E Please fill in the following

Hot number： 216 NR 405002 78738 812/630 M C 2210 V C 2226 K HK 1210 HME 31/630 KMFE 6 NRT 150 B OKCX 690 PBM 071212 M1 PCM 081008 E S7000 CD/HCP4A SSAFS 22544 x 8 TLC

Model No.	Inner Diameter	Outer Diameter	Width	Type
1309 EKTN9 + H 309
7011 ACB/P4A
6056
D/W R1-4 R-2ZS
SYFWR 1.1/2 YZTHR