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 120 ATN9/P4CDB

BTM 120 ATN9/P4CDB

Dimensions

d		120	mm
D		180	mm
H		54	mm
d₁		147.7	mm
D₁		165	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm

Abutment dimensions

d_a	min.	129	mm
D_a	max.	175	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		144.1	mm

Calculation data

Basic dynamic load rating	C	58.5	kN
Basic static load rating	C₀	146	kN
Fatigue load limit	P_u	5	kN
Attainable speed for grease lubrication		5200	r/min
Attainable speed for oil-air lubrication		6700	r/min
Preload class A		600	N
Preload class B		1800	N
Static axial stiffnes for preload A		377	N/µm
Static axial stiffnes for preload B		571	N/µm
Reference grease quantity	G_ref	40	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

4.55

Model Number: BTM 120 ATN9/P4CDB
Inner Diameter：120mm Outer Diameter：180mm Width：54mm
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：2026-04-16
Application:Security Equipment,test strip,suction nozzle,food packaging,Hair styling device,Vertical machining,Oral Equipment,electromyography machine,electrostatic protection,marine analysis,crimping tools
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