3.ball bearing, description about 63303 63304 63305 63306 63307 63308 63309 ZZ 2RS ZCRA deep groove ball bearing on China Suppliers Mobile

Specification

CE CERTIFICATE is very important for european market. And we supply CE certification for our bearings. As for the ball bearing material, the inner ring, outside ring, balls and retainer are usually be made of carbon steel, chrome steel or stainless steel. Sometimes the retainer can be made of nylon. The bearings are also be made of special material such as black ceramic Si3N4, White Ceramic ZrO2, and PTFE, PEEK retainers. Sometimes we make the mini bearing with plastic POM rings and glass balls. The ball bearings price will be different because of the bearing's model number, order quantity, precision range, brand and packing, etc. If you need any original brand bearings or bearing with other dimension and model number, please contact us directly.

Model Number	Inner Diameter	Outer Diameter	Width	Weight
63303	17 mm	47 mm	22.2 mm	0.1431
63304	20 mm	52 mm	22.2 mm	0.1935
63305	25 mm	62 mm	25 mm	0.2541
63306	30 mm	72 mm	25.4 mm	0.4062
63307	35 mm	80 mm	30 mm	0.5037
63308	40 mm	90 mm	30.2 mm	0.8364
63309	45 mm	100 mm	32 mm	1.27
63310	50 mm	110 mm	34.9 mm	1.732
63311	55 mm	120 mm	36.5 mm	2.2372
63312	60 mm	130 mm	39.7 mm	2.8531
63313	65 mm	140 mm	44.4 mm	3.5418
63314	70 mm	150 mm	49.2 mm	4.3533
63315	75 mm	160 mm	54 mm	5.2064
63316	80 mm	170 mm	58.7 mm	6.1098
63317	85 mm	180 mm	63.5 mm	7.1134