SKF BTM 180 AM/P4CDB Angular contact thrust ball bearings, double direction, super-precision

SKF BTM 180 AM/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		180	mm
D		280	mm
H		90	mm
d1		226.5	mm
D1		254.7	mm
r1,2	min.	2.1	mm
r3,4	min.	1.1	mm

Abutment dimensions

da	min.	191	mm
Da	max.	274	mm
ra	max.	2	mm
rb	max.	1	mm
dn		219.9	mm

Calculation data

Basic dynamic load rating	C		140	kN
Basic static load rating	C0		365	kN
Fatigue load limit	Pu		10.4	kN
Attainable speed for grease lubrication			3400	r/min
Attainable speed for oil-air lubrication			4400	r/min
Preload class A			1600	N
Preload class B			4800	N
Static axial stiffnes for preload A			597	N/µm
Static axial stiffnes for preload B			902	N/µm
Reference grease quantity	Gref		160	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

21.4

kg

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