Boundary Dimensions
d
20
mm
Bore diameter
D
52
mm
Outside diameter
B
21
mm
Width
FW
27.5
mm
Raceway diameter of inner ring
r (min.)
1.1
mm
Chamfer dimension
r1 (min.)
0.6
mm
Chamfer dimension
Basic Load Ratings
Cr
51500
N
Basic dynamic load rating
C0r
39000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
13000
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Grease
11000
min-1
Grease lubrication
Oil (Oil-bath)
14000
min-1
Oil-bath lubrication
Abutment and Fillet Dimensions
db (min.)
24
mm
Diameter of shaft / spacer sleeve abutment
db (max.)
26
mm
Diameter of shaft / spacer sleeve abutment
dc (min.)
30
mm
Diameter of shaft abutment
Da (max.)
45.5
mm
Diameter of housing abutment
ra (max.)
1
mm
Radius of shaft or housing fillet
rb (max.)
0.6
mm
Radius of shaft or housing fillet
Mass
(approx.)
0.209
kg
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