Siemens 580 Benutzerhandbuch

- 23 - 

 
To Replace Antifriction Bearings 

1.  Remove bolts holding end caps to housings. 
2.  Remove bolts holding bearing housings to yoke. 
3.  Remove bearing housings. 
4.  Remove the bearing with a puller. See Figure 6. 
5.  Check shaft and housing diameter for proper size 

with micrometer. 

6.  Heat the new bearing in an oven (200°F).  While 

it is hot, slide the bearing onto shaft – make 
certain that the inner race makes a firm even 
contact with shaft shoulder. Do not subject 
bearing to impact. 

7.  Let bearing cool - pack bearing caps with the 

proper grease. 

8.  Reassemble end caps and housings. 
 
The amount of grease to be used when repacking a 
bearing after cleaning or replacement is shown in the 
table below: 
 

Deep Groove 

Ball 

Horizontal 

2/3 Full 

1/3 Full 

Roller 

Horizontal 

1/3 Full 

1/3 Full 

*

Pack all open bearings full between balls or roller but remove 

excess grease on outside of retainers.

 

 
 

Figure 3.  Ball Bearing Construction 

500, 580 & SH400 Frames 

 

 

 

 

 

Figure 4.  Ball Bearing Construction 

880 & SH450 Frames 

 
 

 

 

Figure 5.  Ball Bearing Construction 

SH560 Frame 

 
 

1. 

For best results, seal should be positioned 
flush with outer-most bearing housing 
surface.  (Some frame sizes have shaft seal 
on only one end of the motor) 

 
 
 
 
 
 

See NOTE box; 
1.) is for CGZ, CZ 
& 1LA4