Bearings, units and housings -- Roller bearings -- Needle roller bearings -- Needle roller and cage assemblies -- Needle roller bearings, needle roller and cage assemblies SKF K 45x53x21

K 45x53x21

Dimensions

F_w	45	mm
E_w	53	mm
U	21	mm

Calculation data

Basic dynamic load rating	C	36.9	kN
Basic static load rating	C₀	67	kN
Fatigue load limit	P_u	8.3	kN
Reference speed		9000	r/min
Limiting speed		10000	r/min

Mass

Mass needle roller and cage assembly

0.06

Model Number: K 45x53x21
Inner Diameter：45mm Outer Diameter：53mm Width：21mm
Reference speed:10000 r/min Limiting speed:9000 r/min
Type：Bearings, units and housings Roller bearings Needle roller bearings Needle roller and cage assemblies
Details： Needle roller and cage assemblies Needle roller bearings, needle roller and cage assemblies
Update date：2026-08-24
Application:plant determination,packaging machinery,power source,large agricultural machinery,marine analysis and testing equipment,chamfering machine etc,Industry,Generator,bathroom facilities,electronic materials,Hydraulic Couplings
Similar models:PCM 455040 M FY 45 FM K 45x50x17 SY 45 WF AXK 110145 LM 451345/310 SIA 45 ESX-2LS BT4-8045 G/HA1VA901 K 40x45x17 BTW 45 CTN9/SP
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Model No. Inner Diameter Outer Diameter Width Type

3201 A-2Z
7011 CB/P4A
7661
NU 313 ECPH
PFD 40 RM

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Hot number： 1024690 3208 A 330x370x18 HDS2 D 37340 401905 40x60x8 CRW1 R 570 VRME R 6311-2ZNR 71908 ACB/P4AL BK 1516 GE 20 ESL-2LS NK 18/20 SYF 509 W 61804-2RZ W 639

Model No.	Inner Diameter	Outer Diameter	Width	Type
3201 A-2Z
7011 CB/P4A
7661
NU 313 ECPH
PFD 40 RM