Main Dimensions & Performance Data

d

240 mm

D

300 mm

B

28 mm

Mounting dimensions

Di

270.8 mm Inner diameter outer ring

DM

270 mm rolling element pitch circle diameter

da

269.2 mm outer diameter inner ring

h

28 mm height of individual ring

0 Height of individual ring upper tolerance

-0.025 Height of individual ring lower tolerance

r min

2 mm chamfer dimension

S

2 mm diameter of lubrication hole

Temperature range

T min

-30 °C Minimum operating temperature

T max

80 °C Maximum operating temperature

Calculation coefficient

0.01 mm Running accuracy, radial

0.005 mm Running accuracy, axial

VSP min

0.005 mm Minimum bearing preload

VSP max

0.025 mm Maximum bearing preload

Ca

149,000 N Basic dynamic load rating, axial

C0a

600,000 N Basic static load rating, axial

Cr

106,000 N Basic dynamic load rating, radial (only for radial loads)

C 0r

295,000 N Basic static load rating, radial (only for radial loads)

NG oil

280 1/min Speed limit for preload oil lubrication

NG Grease

140 1/min Grease lubrication with preload limited speed

61848 Dimensions are the same as ISO dimension series 18