SKF BSD 2047 C Angular contact thrust ball bearings for screw drives, single direction, super-precision

SKF BSD 2047 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		20	mm
D		47	mm
H		15	mm
d1		29.4	mm
d2		34.5	mm
D1		34.6	mm
D2		40.65	mm
r1,2	min.	1	mm
a		40	mm

Abutment dimensions

da	min.	27	mm
db	min.	27	mm
Da	max.	42.5	mm
Db	max.	42.5	mm
ra	max.	1	mm

Calculation data

Basic dynamic load rating	C		22	kN
Basic static load rating	C0		49	kN
Fatigue load limit	Pu		1.8	kN
Attainable speed for grease lubrication			9500	r/min
Attainable speed for oil-air lubrication			12000	r/min
Preload class A			1480	N
Preload class B			2960	N
Frictional moment, preload class A			0.05	N·m
Frictional moment, preload class B			0.091	N·m
Static axial stiffnes, preload A			680	N/µm
Static axial stiffnes, preload B			860	N/µm
Maximum axial load carrying capacity	Fa	max.	14.5	kN
Reference grease quantity	Gref		1.4	cm³

Mass

Mass bearing

0.13

kg

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