BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
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CHAPTER 6 – <strong>BOGIES</strong> <strong>AND</strong> <strong>SUSPENSION</strong><br />
WAGON MAINTENANCE MANUAL<br />
Page 13 of 121<br />
Matching of both load and snubber spring is important. It is<br />
recommended that springs having upto 3 mm free height variation<br />
should be assembled in same group. Mixing of new and old springs<br />
should be avoided.<br />
The centre pivot of the bogie shall be lubricated with graphite flakes to<br />
IS:495 at the time of assembly. No other mating surface in the bogie<br />
shall be lubricated.<br />
For detailed description of each item and its maintenance<br />
procedure, refer to RDSO publication No. G-95 (Rev.1); March 1997.<br />
601 E. NOMINAL CLEARANCES<br />
The nominal clearances and the tolerances of the bogie assembly are given<br />
below.<br />
Sr.<br />
No.<br />
Description Type of CASNUB Bogie<br />
22W(M) & 22W(M) 22NL 22HS<br />
22W (Retro) NLB<br />
1. Lateral clearance<br />
between side frame &<br />
bolster<br />
2. Lateral clearance<br />
between side frame &<br />
adapter<br />
3. Longitudinal clearance<br />
between side frame &<br />
adapter<br />
4. Longitudinal clearance<br />
between side frame &<br />
bolster<br />
5. Clearance between<br />
anti- rotation lug &<br />
Bolster<br />
18 mm 18 mm 18 mm 25 mm<br />
25 mm 25 mm 16 mm 16 mm<br />
2mm 10 mm 9 mm 9 mm<br />
6mm 6mm 6mm 6mm<br />
4mm 4mm 4mm 4mm
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