supply of constant contact side bearer for blcam/blcbm wagon.constant contact side bearer for blcam/blcbm wagon.,constant contact side bearer for blcam/blcbm wagon. drawing no:- wd-07067-s/1, alt1, item no. 18 spec. no:- contr-01-misc-2007(rev-01), amendment no.1 of jan-2022 or variant a of sp ec. wd-62-misc-17, amendment no. 1 (drg. no. wd-17025-s/1_alt. 1). expected service life and guaran tee period:- the offered design of constant contact side bearer assembly including housing and spring ele ment/s is expected to work satisfactorily for a period of 72 months on indian railways working condition s. hence offered ccsb shall be guaranteed for a period of 05 years (sixty months) from the month and y ear of manufacturing. [ warranty period: 30 months after the date of delivery ] ] => limited