different types of bearings

DIFFERENT TYPES OF BEARINGS IN WHEELS

NYL : Nylon Bushing

SIB : Sintered Iron Bush

NRB-PC : Needle Roller Bearing Plastic Cage

NRB-MC : Needle Roller Bearing Metal Cage

BB : Ball Bearing

SIZES IN NEEDLE ROLLER BEARING
PLASTIC CAGE	METAL CAGE
15.9 x 26.0 x 30	-----
19.0 x 34.5 x 35	19.0 x 34.5 x 35
19.0 x 34.5 x 40	19.0 x 34.5 x 50
19.0 x 34.5 x 50	25.4 x 41.0 x 50
25.4 x 41.0 x 50	25.4 x 41.0 x 80

SPECIFICATIONS OF BALL BEARINGS
Bearing	I.D.	O.D.	Width	Bearing	I.D.	O.D.	Width
6203	17	40	12	6305	25	62	17
6004	20	42	12	6006	30	55	13
6204	20	47	14	6206	30	62	16
6304	20	52	15	6007	35	62	14
6205	25	52	15	6207	35	72	17