SKF BTM 80 BTN9/HCP4CDB Angular contact thrust ball bearings, double direction, super-precision

SKF BTM 80 BTN9/HCP4CDB 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		39	kN
Basic static load rating	C0		85	kN
Fatigue load limit	Pu		3.55	kN
Attainable speed for grease lubrication			8400	r/min
Attainable speed for oil-air lubrication			10000	r/min
Preload class A			400	N
Preload class B			1200	N
Static axial stiffnes for preload A			472	N/µm
Static axial stiffnes for preload B			705	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

1.65

kg

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