MAINTENANCE • MACHINE TOOL SPINDLES
Quick Reference Data Sheets
For Ball Screw Support Bearings Only:
*Procedure for making a Triplex Set from two sets of Duplex Bearings.
Physically remove the bearings from their boxes
Without removing the bearings from their plastic bags, locate the laser marked code on the outer ring (O.D.). The marking will be a single letter. There are four possible letters, either “A, B, C, or D”.
Note: There are two possible combinations of marking that can be on the outer rings of a DUPLEX set of bearings. One combination is having one bearing marked with an “A” and the other with a “D”. The second combination is having one bearing marked with a “B” and the other with a “C”.
Locate two sets of DUPLEX bearings (four bearings total) marked with “A” and “D” or two sets of bearings marked with “B” and “C”.
Triplex Sets should be matched according to one of the following configurations.
I. Having two sets of bearings that are marked “A”, “D”. Match as shown below.
II. Having two sets of bearings that are marked “B”, “C”. Match as shown below.
MAINTENANCE MACHINE TOOL SPINDLES