supply of constant contact side bearer assembly (spring loaded type) for blcs wagonconstant contact side bearer assembly (spring loaded type) for blcs wagon,constant contact side bearer assembly (spring loaded type) for blcs wagon. drawing no:- wd-14014-s-07, alt- 6, item no.13 (ref. drg. no. wd-12008-s/1_alt. 3). spec. no:-variant b of s pec. wd-62-misc-17, amendment no. 1 (drg. no. wd-12008-s/1, alt. 3). expected service life and gu arantee period:- the offered design of constant contact side bearer assembly including housing and sp ring element/s is expected to work satisfactorily for a period of 72 months on indian railways working conditions. hence offered ccsb shall be guaranteed for a period of 05 years (sixty months) from the month and year of manufacturing. (for details please see spec. wd-62-misc-17, amendment no. 1 ). [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]