Detailed description
SX011868 340*420*38mm crossed roller bearing
Main Dimensions & Performance DataDownload data sheet
d1
340 mm
Bore Diameter
0.007
Bore diameter upper tolerance
-0.029
Bore diameter lower tolerance
Da
420 mm
Outside Diameter
-0.04
Outside diameter lower tolerance
H
38 mm
Height
0.14
Width upper tolerance
-0.14
Width lower tolerance
12.92 kg
Weight
Dimensions
Di
380.8 mm
DM
380 mm
da
379.2 mm
h
38 mm
height of individual ring
-0.05
Height of individual ring lower tolerance
rmin
2.1 mm
S
2.5 mm
Calculation factors
0.025 mm
Running accuracy, radial
0.01 mm
Running accuracy, axial
Sr min
0.01 mm
Min. radial bearing clearance
Sr max
0.04 mm
Maximum radial bearing clearance
Sk min
0.02 mm
Min. axial tilting clearance
Sk max
0.08 mm
Maximum axial tilting clearance
RLOmax
0.005 mm
Low clearance: Radial clearance
RLOmax
0.01 mm
Low clearance: Preload
VSPmin
0.005 mm
Min. bearing preload
VSPmax
0.025 mm
Maximum bearing preload
Ca
265,000 N
Basic dynamic load rating, axial
C0a
1,130,000 N
Basic static load rating, axial
Cr
187,000 N
Basic dynamic load rating, radial (for radial load only)
C0r
550,000 N
Basic static load rating, radial (for radial load only)
NG oil
400 1/min
Limiting speed for oil lubrication with normal clearance
NG Grease
200 1/min
Limiting speed for grease lubrication with normal clearance
NG oil
200 1/min
Limiting speed for oil lubrication with preload
NG Grease
100 1/min
Limiting speed for grease lubrication with preload
61868
Dimensions identical to ISO dimension series 18
Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
80 °C
Operating temperature max.













