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51204

Single-Direction Thrust Ball Bearings
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Images shown are representations. Designs and specifications may differ from actual products.
Parts Number
51204 Single-Direction Thrust Ball Bearings
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Display units

Parts Number

51204

Boundary Dimensions

d 20 mm Bore diameter
D 40 mm Outside diameter
T,T3 14 mm Height
r (min.) 0.6 mm Chamfer dimension

Basic Load Ratings

Ca 22500 N Basic dynamic load rating
C0a 37500 N Basic static load rating

Speeds

Grease 4300 min-1 Grease lubrication
Oil (Oil-bath) 6300 min-1 Oil-bath lubrication

Dimensions

d1 40 mm Outside diameter shaft washer
D1 22 mm Inner diameter housing washer

Abutment and Fillet Dimensions

da (min.) 32 mm Diameter of shaft abutment
Da (max.) 28 mm Diameter of housing abutment
ra (max.) 0.6 mm Radius of shaft or housing fillet

Mass

(approx.) 0.077 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)
51204 20 40 14 22500 37500 ISO NORMAL CLASS 4300 6300 0.077

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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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