240TMP12

Thrust Cylindrical Roller Bearings

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Parts Number
240TMP12 Thrust Cylindrical Roller Bearings			Add to Compare You can use this service by registering as a member.

Product Information

Display units Metric Imperial

Parts Number

240TMP12

Boundary Dimensions

d	240	mm	Bore diameter
D	340	mm	Outside diameter
T,T3	78	mm	Height
r (min.)	2.1	mm	Chamfer dimension

Basic Load Ratings

C_a	965000	N	Basic dynamic load rating
C_0a	4100000	N	Basic static load rating

Speeds

Grease	280	min^-1	Grease lubrication
Oil (Oil-bath)	850	min^-1	Oil-bath lubrication

Dimensions

Dw	32	mm
t	23	mm	Height shaft washer
d1	335	mm	Outside diameter shaft washer
D1	244	mm	Inner diameter housing washer

Abutment and Fillet Dimensions

da (min.)	322	mm	Diameter of shaft abutment
Da (max.)	258	mm	Diameter of housing abutment
ra (max.)	2	mm	Radius of shaft or housing fillet

Mass

(approx.)

23.3

CAD

FAQs (3)

Customer Questions

Can cylindrical roller thrust bearings be used without positioning by the outside diameter of the outer ring?

The fixed-side ring (outer ring) does not require especially precise positioning; however, a guide should be used to prevent the raceway from shifting and protruding from the rolling surface of the rollers.

If a cylindrical roller thrust bearing is used with a horizontal shaft, what kind of fit will be used with the housing side? Is it necessary to provide the same “0.25 mm or above” clearance as thrust ball bearings?

This clearance is recommended for thrust ball bearings as they may be subject to radial loads. Cylindrical roller thrust bearings cannot handle radial loads by design, so such a large clearance is not necessary.

Can thrust roller bearings sustain radial loads?

With the exception of cylindrical roller thrust bearings and some tapered roller thrust bearings (TTF type), it is possible in theory for thrust roller bearings to take radial loads to a certain percentage of the axial load. However, stable operation under these conditions requires careful restrictions.

For this reason, we primarily recommend thrust roller bearings for axial load applications.

More Information

More Information
NSK Product Type2	TB_TCRB
NSK Product Type	Bearing
Designations	240TMP12

240TMP12

Parts Number

Boundary Dimensions

Basic Load Ratings

Speeds

Dimensions

Abutment and Fillet Dimensions

Mass

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