Bearings, units and housings -- Roller bearings -- Spherical roller bearings -- Spherical roller bearings -- SKF 21308 EK

21308 EK

SKF Explorer

Dimensions

d		40	mm
D		90	mm
B		23	mm
d₂	≈	60	mm
D₁	≈	79.8	mm
b		5.5	mm
K		3	mm
r_1,2	min.	1.5	mm

Tapered bore, taper 1:12

Abutment dimensions

D_a	max.	81	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	107	kN
Basic static load rating	C₀	108	kN
Fatigue load limit	P_u	12	kN
Reference speed		7000	r/min
Limiting speed		9500	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

0.74

Mounting information

Recommended lock nut tightening angle

115

Model Number: 21308 EK
Inner Diameter：40mm Outer Diameter：90mm Width：23mm
Reference speed:9500 r/min Limiting speed:7000 r/min
Type：Bearings, units and housings Roller bearings Spherical roller bearings Spherical roller bearings
Details： Spherical roller bearings
Update date：2026-04-16
Application:Cylinder Pneumatic Treatment Element,extruder,drawing die,Spectrum Products,test strip,stamping die and its equipment,climb ladder,flexible processing,root canal filling,plastic rolling,journal lathe
Similar models:21308 E 21308 EK BD-21308 EK-AH 308
BEARING POWER International Trading Co.,Ltd. specialize in 21308EK products，there is large inventory of SKF 21308 EK Spherical roller bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the 21308 EK Which SKF 21308EK 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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115x160x12 CRW1 R	115	160	12	Seals
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71922 ACB/P4AL	110	150	20	Bearings, units and housings
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BT4-8069 G/HA1VA901	717.55	946.15	-	Bearings, units and housings
FYR 2 11/16-18	68.2625	-	-	Bearings, units and housings
GEH 35 TXE-2LS	35	62	22	Bearings, units and housings
GEP 460 FS	460	650	325	Bearings, units and housings
KMTA 11	24	-	55	Bearings, units and housings
KRV 47 PPXA	-	47	24	Bearings, units and housings

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