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 75 BTN9/HCP4CDB

BTM 75 BTN9/HCP4CDB

Dimensions

d		75	mm
D		115	mm
H		36	mm
d₁		93.55	mm
D₁		105.2	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm

Abutment dimensions

d_a	min.	81	mm
D_a	max.	111	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		91.1	mm

Calculation data

Basic dynamic load rating	C	32.5	kN
Basic static load rating	C₀	69.5	kN
Fatigue load limit	P_u	2.9	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		10700	r/min
Preload class A		350	N
Preload class B		1050	N
Static axial stiffnes for preload A		447	N/µm
Static axial stiffnes for preload B		670	N/µm
Reference grease quantity	G_ref	11.8	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

1.2

Model Number: BTM 75 BTN9/HCP4CDB
Inner Diameter：75mm Outer Diameter：115mm Width：36mm
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 Adhesive,teaching equipment,medical equipment,shoe-making machinery,orthodontic material,tapered grinder,Broadcasting System,Cylinder Type,multi-knife lathe,Roller,industry test
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