SKF BSA 202 C Angular contact thrust ball bearings for screw drives, single direction, super-precision

SKF BSA 202 C Angular contact thrust ball bearings for screw drives, single direction, super-precision
Angular contact thrust ball bearings for screw drives, single direction, super-precision

Tolerances: table, Chamfer dimensionsBearing preloadDesign considerations: shafts, housingsSpeed dependent initial grease fill → Initial grease fill

d		15	mm
D		35	mm
H		11	mm
d1		20.88	mm
d2		25	mm
D1		25.1	mm
D2		29.6	mm
r1,2	min.	0.6	mm
a		29	mm

Abutment dimensions

da	min.	20	mm
db	min.	20	mm
Da	max.	32	mm
Db	max.	32	mm
ra	max.	0.6	mm

Calculation data

Basic dynamic load rating	C		12.7	kN
Basic static load rating	C0		25.5	kN
Fatigue load limit	Pu		0.95	kN
Attainable speed for grease lubrication			12000	r/min
Attainable speed for oil-air lubrication			15000	r/min
Preload class A			770	N
Preload class B			1540	N
Frictional moment, preload class A			0.022	N·m
Frictional moment, preload class B			0.038	N·m
Static axial stiffnes, preload A			460	N/µm
Static axial stiffnes, preload B			580	N/µm
Maximum axial load carrying capacity	Fa	max.	8.5	kN
Reference grease quantity	Gref		0.5	cm³

Mass

Mass bearing

0.054

kg

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