Description
Metric
Imperial
Main Dimensions & Performance Data
d1 | 300 mm | Bore Diameter |
0.005 mm | Bore diameter upper tolerance | |
-0.027 mm | Bore diameter lower tolerance | |
Da | 380 mm | Outside Diameter |
0 mm | Outside diameter upper tolerance | |
-0.036 mm | Outside diameter lower tolerance | |
H | 38 mm | Height of the assembled bearing |
hi | 38 mm | heigth inner ring |
0.14 mm | Width upper tolerance | |
-0.14 mm | Width lower tolerance | |
≈m | 11.7 kg | Weight |
Dimensions
Di | 340.8 mm | Inner diameter outer ring |
DM | 340 mm | rolling element pitch circle diameter |
da | 339.2 mm | outer diameter inner ring |
h | 38 mm | height of individual ring |
0 mm | Height of individual ring upper tolerance | |
-0.05 mm | Height of individual ring lower tolerance | |
rmin | 2.1 mm | chamfer dimension |
S | 2.5 mm | diameter of lubrication hole |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 80 °C | Operating temperature max. |
Calculation factors
0.02 mm | Running accuracy, radial | |
0.01 mm | Running accuracy, axial | |
VSPmin | 0.005 mm | Minimum bearing preload |
VSPmax | 0.025 mm | Maximum bearing preload |
Ca | 245,000 N | Basic dynamic load rating, axial |
C0a | 990,000 N | Basic static load rating, axial |
Cr | 174,000 N | Basic dynamic load rating, radial (for radial load only) |
C0r | 485,000 N | Basic static load rating, radial (for radial load only) |
NG oil | 225 1/min | Limiting speed for oil lubrication with preload |
NG Grease | 110 1/min | Limiting speed for grease lubrication with preload |
61860 | Dimensions identical to ISO dimension series 18 |