supply of set of nei roller bearing l6204 and l6205 alongwith two distance ring (oneeach) to nei drg. no. 92-4271-c, part no. 31,32, 7 and 8. or norma rollerbearing wj 150 x 270 and wjp 150 x 270 p alongwith twodistance ring (one each) to schaeffler india limited drg. no. 901-02-110, 901-02-109.