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81256 M Cylindrical roller thrust bearing

Short Description:

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. Bearings in the 811 and 812 series with one row of rollers are mainly used in applications where thrust ball bearings do not have sufficient load carrying capacity. Depending on their series and size, cylindrical roller thrust bearings are fitted with A Glass fibre reinforced PA66 cage (suffix TN) or a machined brass cage (suffix M).


Product Detail

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81256 M Cylindrical roller thrust bearing detail Specifications:

Metric series

Material : 52100 Chrome Steel

Construction : single direction

Cage : Brass cage

Cage Material : Brass

Limiting Speed : 750 rpm

Weight : 31 kg

 

Main Dimensions:

Bore diameter (d) : 280 mm

Outer diameter : 380 mm

Width : 80 mm

Outer diameter shaft washer (d1) : 375 mm

Bore diameter housing washer (D1) : 284 mm

Diameter roller (Dw) : 32 mm

Height shaft washer (B) : 24 mm

Chamfer Dimension ( r) min. : 2.1 mm

Static load ratings (Cor) : 1460 KN

Dynamic load ratings (Cr) : 5600 KN

 

ABUTMENT DIMENSIONS

Abutment diameter shaft (da) min. : 373 mm

Abutment diameter housing (Da) max. : 300 mm

Fillet radius (ra) max. : 2.1 mm

 

INCLUDED PRODUCTS:

Roller and cage thrust assembly : K 81256 M

Shaft washer : WS 81256

Housing washer : GS 81256

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