SKF BTM 140 BM/P4CDB Angular contact thrust ball bearings, double direction, super-precision

SKF BTM 140 BM/P4CDB Angular contact thrust ball bearings, double direction, super-precision
Angular contact thrust ball bearings, double direction, super-precision

Tolerances: P4C, SP, UP, Chamfer dimensionsRecommended shaft and housing fits: shafts, housingsValues for ISO tolerance classes: shafts, housingsSpeed dependent initial grease fill → Initial grease fill

d		140	mm
D		210	mm
H		63	mm
d1		172.6	mm
D1		192.1	mm
r1,2	min.	2.1	mm
r3,4	min.	1	mm

Abutment dimensions

da	min.	151	mm
Da	max.	205	mm
ra	max.	2	mm
rb	max.	1	mm
dn		168.3	mm

Calculation data

Basic dynamic load rating	C		86.5	kN
Basic static load rating	C0		216	kN
Fatigue load limit	Pu		6.95	kN
Attainable speed for grease lubrication			3900	r/min
Attainable speed for oil-air lubrication			5100	r/min
Preload class A			1050	N
Preload class B			3150	N
Static axial stiffnes for preload A			739	N/µm
Static axial stiffnes for preload B			1113	N/µm
Reference grease quantity	Gref		62	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

7.85

kg

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