SKF BSA 306 C Angular contact thrust ball bearings for screw drives, single direction, super-precision

SKF BSA 306 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		30	mm
D		72	mm
H		19	mm
d1		43.99	mm
d2		51	mm
D1		51.1	mm
D2		59.46	mm
r1,2	min.	1	mm
a		57	mm

Abutment dimensions

da	min.	40	mm
db	min.	40	mm
Da	max.	65.5	mm
Db	max.	65.5	mm
ra	max.	1	mm

Calculation data

Basic dynamic load rating	C		41.5	kN
Basic static load rating	C0		104	kN
Fatigue load limit	Pu		3.9	kN
Attainable speed for grease lubrication			7000	r/min
Attainable speed for oil-air lubrication			9500	r/min
Preload class A			3000	N
Preload class B			6000	N
Frictional moment, preload class A			0.175	N·m
Frictional moment, preload class B			0.32	N·m
Static axial stiffnes, preload A			1010	N/µm
Static axial stiffnes, preload B			1280	N/µm
Maximum axial load carrying capacity	Fa	max.	46	kN
Reference grease quantity	Gref		3.5	cm³

Mass

Mass bearing

0.41

kg

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