51218 Series

Single-Direction Thrust Ball Bearings

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Grouped product items
Parts Number
51218 Single-Direction Thrust Ball Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Display units Metric Imperial

Designations

51218

Boundary Dimensions

d	90	mm	Bore diameter
D	135	mm	Outside diameter
T,T3	35	mm	Height
r (min.)	1.1	mm	Chamfer dimension

Basic Load Ratings

C_a	114000	N	Basic dynamic load rating
C_0a	310000	N	Basic static load rating

Speeds

Grease	1400	min^-1	Grease lubrication
Oil (Oil-bath)	2200	min^-1	Oil-bath lubrication

Dimensions

d1	135	mm	Outside diameter shaft washer
D1	93	mm	Inner diameter housing washer

Abutment and Fillet Dimensions

da (min.)	117	mm	Diameter of shaft abutment
Da (max.)	108	mm	Diameter of housing abutment
ra (max.)	1	mm	Radius of shaft or housing fillet

Mass

(approx.)

1.69

Drawing for Reference

Designations	Boundary Dimensions				Basic Load Ratings		Tolerance Class	Limiting Speeds		Mass
Designations	d (mm)	D (mm)	T,T3 (mm)	T4 (mm)	C_a (N)	C_0a (N)	Tolerance Class	Grease (min^-1)	Oil (Oil-bath) (min^-1)	(approx.) (kg)
51218	90	135	35		114000	310000		1400	2200	1.69

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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

FAQs (2)

Customer Questions

How are axial load and thrust load different?

Axial load and thrust load are different words for the same concept: They both refer to loads parallel to the axis of the shaft.

Can thrust ball bearings take radial loads?

No, thrust ball bearings cannot take radial loads.