SKF BSD 4072 C Angular contact thrust ball bearings for screw drives, single direction, super-precision

SKF BSD 4072 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		40	mm
D		72	mm
H		15	mm
d1		48.69	mm
d2		55	mm
D1		55.1	mm
D2		62.68	mm
r1,2	min.	1.1	mm
a		59	mm

Abutment dimensions

da	min.	47.5	mm
db	min.	44	mm
Da	max.	65	mm
Db	max.	64.8	mm
ra	max.	1	mm

Calculation data

Basic dynamic load rating	C		36.5	kN
Basic static load rating	C0		98	kN
Fatigue load limit	Pu		3.65	kN
Attainable speed for grease lubrication			7500	r/min
Attainable speed for oil-air lubrication			9000	r/min
Preload class A			2950	N
Preload class B			5900	N
Frictional moment, preload class A			0.18	N·m
Frictional moment, preload class B			0.32	N·m
Static axial stiffnes, preload A			1080	N/µm
Static axial stiffnes, preload B			1370	N/µm
Maximum axial load carrying capacity	Fa	max.	29.6	kN
Reference grease quantity	Gref		2.5	cm³

Mass

Mass bearing

0.26

kg

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