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 17 of 121<br />
Sr.No. Components Drawing No./Pamphlet No.<br />
9. Springs Silico Mangnese steel to IS : 3195 Gr<br />
60 Si7, Gr 60 Cr4V2 Gr. 51 CrMoV4,<br />
IRS specification R2 and RDSO<br />
specification WD-01-HLS-94 (rev.1)<br />
10. Centre pivot CASNUB 22W W/BE-601 for top pivot<br />
W/BE-602 for Bottom pivot<br />
11. Centre pivot other than CASNUB 22W WD-85079-S/2<br />
12. Elastomeric Pads WD-89067-S/10,<br />
WD-92058-S/8 (for HS),<br />
WD-95005-S/1<br />
13. Side Bearer Rubber Pads WD-85076-S/1<br />
14. Brake Block WA/BG-6158<br />
15. CASNUB 22W(M) bogie, brake beam, WD-85084-S/1, WD-88012-S/1,<br />
brake head & block assembly<br />
WD-86034-S/1<br />
16. Brake beam [22W, 22NLB & 22HS] Sk-69596, WD-89033-S/1<br />
602. FABRICATED BOX BOGIE (UIC BOGIE)<br />
602A. GENERAL DESCRIPTION<br />
These bogies are used on BOX, BCX, BCXT, BRH, BRS wagons. It is<br />
also known as UIC bogie.<br />
The BOX bogie is designed for an axle load of 20.3t. It is an all<br />
welded, plate fabricated bogie having a fixed bolster with hemispherical centre<br />
pivot and primary suspension incorporating four laminated bearing springs<br />
with long links supported by mild steel stones. The suspension arrangement<br />
and axle box design with liberal lateral and longitudinal clearance are intended<br />
to permit the wheel set to “float” relative to the bogie frame, with the object of<br />
improving the riding characteristics of the bogie. The roller bearing axle boxes<br />
are provided with “L” type lugs, so that in its lateral movement, wheel set is<br />
constrained by only one axle box at a time and there is no reversal in bending<br />
of bogie sole plate.<br />
602 B. CONSTRUCTIONAL DETAILS<br />
A limited number of mark ‘O’ type bogies were applied on BOX, BRH<br />
and BRS type wagons during their initial production. The bogie frame of the<br />
Mark ‘O’ type is of a riveted cum welded construction whereas Mark-I has an<br />
all welded plate fabricated bogie frame. Apart from this basic change in the<br />
construction of the bogie frame, there is no change in any of the general<br />
design features between Mark-I and Mark ‘O’ bogies. Both of them are<br />
interchangeable. Mark ‘O’ bogies has withdrawn from service.
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