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81218 TN 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).


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81218 TN Cylindrical roller thrust bearing detail Specifications:

Metric series

Material : 52100 Chrome Steel

Construction : single direction

Cage : Nylon cage

Cage Material : Polyamide(PA66)

Limiting Speed : 2550 rpm

Weight : 1.65 kg

 

Main Dimensions:

Bore diameter (d) : 90 mm

Outer diameter : 135 mm

Width : 35 mm

Outer diameter shaft washer (d1) : 135 mm

Bore diameter housing washer (D1) : 93 mm

Diameter roller (Dw) : 14 mm

Height shaft washer (B) : 10.5 mm

Chamfer Dimension ( r) min. : 1.1 mm

Static load ratings (Cor) : 290 KN

Dynamic load ratings (Cr) : 890 KN

 

ABUTMENT DIMENSIONS

Abutment diameter shaft (da) min. : 129 mm

Abutment diameter housing (Da) max. : 95 mm

Fillet radius (ra) max. : 1.1 mm

 

INCLUDED PRODUCTS:

Roller and cage thrust assembly : K 81218 TV

Shaft washer : WS 81218

Housing washer : GS 81218

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