Bearings, units and housings -- Super-precision bearings -- Double direction angular contact thrust ball bearings -- Angular contact thrust ball bearings, double direction, super-precision -- SKF BTM 85 BTN9/HCP4CDB

BTM 85 BTN9/HCP4CDB

Dimensions

d		85	mm
D		130	mm
H		40.5	mm
d₁		105.8	mm
D₁		118.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm

Abutment dimensions

d_a	min.	91	mm
D_a	max.	126	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		102.9	mm

Calculation data

Basic dynamic load rating	C	40	kN
Basic static load rating	C₀	88	kN
Fatigue load limit	P_u	3.6	kN
Attainable speed for grease lubrication		8000	r/min
Attainable speed for oil-air lubrication		9500	r/min
Preload class A		400	N
Preload class B		1200	N
Static axial stiffnes for preload A		483	N/µm
Static axial stiffnes for preload B		728	N/µm
Reference grease quantity	G_ref	16.8	cm³

Notes

Speed values are applicable to bearings with light preload (suffix DBA). For bearings with a heavy preload (suffix DBB), attainable speeds are about 75% of the quoted values.

Mass

Mass bearing

1.7

Model Number: BTM 85 BTN9/HCP4CDB
Inner Diameter：85mm Outer Diameter：130mm Width：40.5mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Double direction angular contact thrust ball bearings Angular contact thrust ball bearings, double direction, super-precision
Details： Angular contact thrust ball bearings, double direction, super-precision
Update date：2025-12-09
Application:industrial equipment,shoe-making machinery,Technical Equipment,vertical processing,top industry,rolling machine,Spectrum Products,Spectrum Products,Low-voltage electrical equipment,Dental Drill etc,decoration machinery
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