SKF Bearing 81248 M

d=240.0mm, D=340.0mm, B=23.0mm, Mass bearing=22.0kg
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of SKF Bearing 81248 M

SKF Bearing 81248 M

Dimensions

d 240.0mm Bore diameter
D 340.0mm Outside diameter
H 78.0mm Nominal height
d1 335.0mm Outside diameter shaft washer
D1 244.0mm Bore diameter housing washer
B 23.0mm Height shaft washer
r1,2 2.1mm Chamfer dimension housing washer
SKF Bearing 81248 M

Abutment dimensions

da 335.0mm Abutment diameter shaft
Da 261.0mm Abutment diameter housing
ra 2.1mm Fillet radius

Calculation data

Basic dynamic load rating C 1100.0kN
Basic static load rating C0 4900.0kN
Fatigue load limit Pu 390.0kN
Reference speed 400.0r/min
Limiting speed 800.0r/min
Minimum axial load factor A 1.921

Mass

Mass bearing 22.0kg

Included products

Roller and cage thrust assembly K 81248 M
Shaft washer WS 81248
Housing washer GS 81248

Product description of SKF Bearing 81248 M

SKF Bearing 81248 M, it belongs to SKF Bearing > Rolling bearings > Roller bearings > Cylindrical roller thrust bearings. SKF cylindrical roller thrust bearings are designed to accommodate heavy axial loads and impact loads. They must not be subjected to any radial load. The bearings are very stiff and require little axial space. SKF supplies cylindrical roller thrust bearings in different series:
811 and 812 series bearings with one row of rollers
They are mainly used in applications where thrust ball bearings do not have sufficient load carrying capacity.
893 and 894 series bearings with two rows of rollers.
As standard, cylindrical roller thrust bearings are available as single direction bearings and can accommodate axial loads in one direction only.

Double direction bearings
can accommodate axial loads in both directions
can be created by combining two cylindrical roller and cage thrust assemblies and two bearing washers with an intermediate washer
SKF Bearing 81248 M,Cylindrical roller thrust bearings, depending on the design, an intermediate washer can be shaft or housing centred.
Intermediate washers must have the same surface finish and hardness as bearing washers. SKF does not supply intermediate washers, but provides material specifications and dimensional data on request. SKF Bearing 81248 M,Cylindrical roller thrust bearings, and cage thrust assemblies are identified by the prefix K.
can accommodate axial loads in one direction only.
can be combined with washers in the WS, GS and LS series (Bearing washers)

can be used without washers in applications where:
adjacent components can serve as raceways
bearing arrangements with a low axial section height are required.
SKF can also supply the components of cylindrical roller thrust bearings separately. Additional to SKF Bearing 81248 M,Cylindrical roller thrust bearings and cage thrust assemblies the included bearing washers are listed in the product tables.

Shaft washers
are identified by the prefix WS.
are made of hardened carbon chromium bearing steel
have a precision-ground raceway surface
have a ground bore
Housing washers
are identified by the prefix GS.

are made of hardened carbon chromium bearing steel
have a precision-ground raceway surface have a ground outside surface SKF recommends using both of these washers in high-speed applications where accurate cent-ring of the bearing washers is required.

LS series universal washers
can be used as both shaft or housing washers for roller and cage assemblies in the K 811 series
are used for applications where accurate cent-ring of the bearing washers is not necessary
are used where low speeds are involved.SKF cylindrical roller thrust bearings are fitted with one of the cages shown in table. When used at high temperatures, some lubricants can have a detrimental effect on poly-amide cages. For additional information about the suitability of cages, refer to Cages.

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