BTW 85 CTN9/SPDouble direction angular contact thrust ball bearing, super-precision, basic design

SKU: BTW 85 CTN9/SPDouble direction angular contact thrust ball bearing, super-precision, basic design

Double direction angular contact thrust ball bearings are designed to locate spindle shafts axially in both directions. These bearings are intended for mounting in combination with cylindrical roller bearings, and consist of two single row angular contact thrust ball bearings arranged back-to-back. The large number of balls enables these bearings to accommodate high axial loads in both directions and provides a high degree of system rigidity.

ID:100174

Dimensions - BTW 85 CTN9/SP

Dimensions

d
85 mm
Bore diameter
D
130 mm
Outside diameter
H
54 mm
Height
d1
111.2 mm
Shoulder diameter shaft washer (high shoulder)
2C
27 mm
Height of both housing washers
r1,2
min. 1.1 mm
Shaft washer chamfer radius
r3,4
min. 0.6 mm
Housing washer small chamfer radius

Abutment dimensions - BTW 85 CTN9/SP

Abutment dimensions

da
min. 102 mm
Abutment diameter shaft
Da
min. 122.3 mm
Abutment diameter shaft
Da
max. 124 mm
Abutment diameter housing
ra
max. 1 mm
Fillet radius
rb
max. 0.6 mm
Fillet radius

Calculation data

Basic dynamic load rating C
48.8 kN
Basic static load rating C0
146 kN
Fatigue load limit Pu
6.7 kN
Attainable speed for grease lubrication
5 600 r/min
Attainable speed for oil-air lubrication
6 700 r/min
Contact angle α
60 °
Preload
600 N
Static axial stiffness
763 N/µm
Reference grease quantity Gref
11.2 cm³

Mass

Mass bearing
2.05 kg

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