Bearings And Shaft Load - Baumuller DST2 Serie Bedienungsanleitung

2.6.

Bearings and shaft load

All machines are fitted with antifriction bearings. On the solid shaft model, the floating bearing is fitted on the
drive side and the fixed bearing on the non-drive side. On the hollow shaft model, the floating bearing is fitted
on the non-drive side and the fixed bearing on the drive side. On the thrust bearing motors an additional thrust
bearing in front of the motor is realized.
Ball bearing assignment for solid shafts
Size D-side
135 6217 2ZRC3
200 6220 2ZRC3
260 6226 2ZRC3
315 6226 2ZRC3
400 6232 M/C3
Thrust bearing
Size
135
200
260
315
29432
400
29440 (overall length LO-XY)
1)
For the axial spherical roll-up bearing 29432 please use the characteristic curve of the DST2-315 in the axial force diagram.
Relubrication
Relubrication for hollow shaft motors is available on request.
Permitted radial forces F
The ball bearings are designed for an estimated life of approx. 20,000 operating hours
load values must not be exceeded. The permitted radial forces F
a horizontal position and if no additional axial forces are applied.
2)
average operating temperature < 90 °C.
Axial load on the motor shaft
When pulling couplings, belt pulleys or similar components onto the motor shaft, no axial forces must be
applied! The internal thread on the end of the shaft should be used as a mounting aid. In a similar vein, no axial
forces should act on the motor shaft during operation.
The use of a thrust bearing will be necessary if axial forces occur. The axial forces must only act as
compression forces (from motor D-side to motor N-side).
DST2-135-400
Baumüller Nürnberg GmbH
N-side
6217 2ZRC3
6220 2ZRC3
6220 2ZRC3
6226 2ZRC3
6324 M/C3
D-side
29415
29420
29424
29424 (on request)
29432
1)
(overall length KO-MO)
at the shaft end
R
Synchronous Torque-Motor DST2-135-400
Ball bearing assignment for hollow shafts
Size
135
200
260
315
400
specified are only valid for motors installed in
R
01/2013
D-side
61838
61838
61944
61864
61864
2)
, whereby the specified
Subject to technical modifications
N-side
61836
61836
61838
61856
61856
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