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53244XU

Single-Direction Thrust Ball Bearings
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Images shown are representations. Designs and specifications may differ from actual products.
Parts Number
53244XU Single-Direction Thrust Ball Bearings
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Display units

Parts Number

53244XU

Boundary Dimensions

d 220 mm Bore diameter
D 300 mm Outside diameter
T,T3 65.6 mm Height
T4 75 mm Height bearing include seat washer
r (min.) 2 mm Chamfer dimension

Basic Load Ratings

Ca 325000 N Basic dynamic load rating
C0a 1210000 N Basic static load rating

Speeds

Grease 670 min-1 Grease lubrication
Oil (Oil-bath) 1000 min-1 Oil-bath lubrication

Dimensions

A 118 mm Centre height housing washer sphere
R 225 mm Radius sphered housing washer
b 25 mm Height sphered housing washer
D2 260 mm Inner diameter sphered seat washer
d1 297 mm Outside diameter shaft washer
D3 310 mm Outside diameter sphered housing washer
D1 224 mm Inner diameter housing washer

Abutment and Fillet Dimensions

da (min.) 268 mm Diameter of shaft abutment
Da (max.) 252 mm Diameter of housing abutment
ra (max.) 2 mm Radius of shaft or housing fillet

Mass

(approx.) 18 kg
Designations Boundary Dimensions Basic Load Ratings Tolerance Class Limiting Speeds Mass
d
(mm)		 D
(mm)		 T,T3
(mm)		 T4
(mm)		 Ca
(N)		 C0a
(N)		 Grease
(min-1)		 Oil (Oil-bath)
(min-1)		 (approx.)
(kg)
53244XU 220 300 65.6 75 325000 1210000 ISO NORMAL CLASS 670 1000 18

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Not to scale.
(*) The chamfer dimensions are minimum values.
For heavy load applications, ensure that the da value chosen is large enough to support the shaft washer rib.

CAD

© NSK Ltd.

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