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/P4CDB

BTM 85 BTN9/P4CDB

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		6400	r/min
Attainable speed for oil-air lubrication		8300	r/min
Preload class A		400	N
Preload class B		1200	N
Static axial stiffnes for preload A		435	N/µm
Static axial stiffnes for preload B		656	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

1.85

Model Number: BTM 85 BTN9/P4CDB
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:rock drilling machinery,milling head plug,switch,Laser Cutting,equipment,animal anatomy,plastic rolling,rolling machine,laser devices,electrocardiograph,Other machinery
Similar models:IR 170x185x45 NK 85/35 618/850 MA 238/850 CAKMA/W20 OH 39/850 HE PWM 859560 PSM 708560 A51 PCM 808580 M PSMF 708560 A51 C 30/850 KMB
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