SKF BTM 80 ATN9/P4CDB Angular contact thrust ball bearings, double direction, super-precision

SKF BTM 80 ATN9/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		80	mm
D		125	mm
H		40.5	mm
d1		100.8	mm
D1		113.7	mm
r1,2	min.	1.1	mm
r3,4	min.	0.6	mm

Abutment dimensions

da	min.	86	mm
Da	max.	121	mm
ra	max.	1	mm
rb	max.	0.6	mm
dn		97.9	mm

Calculation data

Basic dynamic load rating	C		33.5	kN
Basic static load rating	C0		73.5	kN
Fatigue load limit	Pu		3.1	kN
Attainable speed for grease lubrication			7600	r/min
Attainable speed for oil-air lubrication			9700	r/min
Preload class A			300	N
Preload class B			900	N
Static axial stiffnes for preload A			252	N/µm
Static axial stiffnes for preload B			380	N/µm
Reference grease quantity	Gref		16	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

1.75

kg

<input type="hidden" name="moreInfoUrl" value="">