Bearing Variants - Bosch Rexroth IndraDyn A Series Project Planning Manual

Rexroth IndraDyn A

9.17 Bearing Variants

Standard bearing
Reinforced bearing
DOK-MOTOR*-MAD/MAF****-PR03-EN-P
Depending on the frame size of the IndraDyn A motors, the following
bearing variants are available:
• Standard bearing "N"
• Reinforced bearing "V"
roller bearing
• high-speed bearing "H" = deep-groove ball bearing, light construction
• bearing for coupling connection "R" = deep-groove ball bearing +
special bearing seat
Universal bearing (type key option "N"), suitable for taking up low to
medium radial and axial forces.
Advantages:
• Easily available and high lifetime
• Suitable for high speeds
• Low-noise running
Disadvantage:
• Suitable only for low to medium radial and axial loads.
The reinforced bearing (type code option "V") is equipped with an
additional cylindrical roller bearing on the drive side.
(1): Cylindrical roller bearing
(2): Deep-groove ball bearing
Fig. 9-49: Reinforced bearing
Advantage:
• Can absorb higher radial forces
Disadvantage:
• The grease service life of reinforced bearing is reduced to half of the
standard value.
• In certain motors, a reduction of the maximum permitted speed
results.
Application Notes
= deep-groove ball bearing
= deep-groove ball bearing + cylindrical
9-37
MADDetails2.EPS