The difference between the industrial bearing and skateboard bearing

The difference between the industrial bearing and skateboard bearing

Environmental differences
Bearings designed specifically for skateboards and industrial bearing are of the same size, but the working environment of the two is quite different, so the performance to be satisfied is also far from satisfactory. Industrial bearings are generally working in a high-speed, stable, vibration-free and dust-free environment (mostly used on motors). The working environment of skateboard bearings is outdoor, outdoor dust, water, and the impact of the user bouncing on the bearings Force, there is also a lot of side torsion brought about by the lateral torsion, making skateboard bearings must overcome these harsh working conditions, of course, this is the reason industrial bearing cannot meet the needs of the skateboard.
Precision control
One data standard for industrial bearings is ABEC, and ABEC systems include 1, 3, 5, 7, and 9. The higher the level, the smaller the allowable tolerance and the more precise the bearing. Skateboard bearings do not require the use of high-precision motor bearings. Therefore, the precision of the slide bearing is -7, which is enough, and it does not make any sense for the user to improve the accuracy of the slide bearing.

About the industrial bearing, please check the picture:

The related models of industrial bearing:

Bearing	main dimension(mm)					basic load rating(kgf)		rotational speed(rpm)			Weight
No.	Bore	O.D.	Width	Chamfer		Dynamic	Static	Grease		Oil	(KG)
	d	D	B	r/min		Ce	Co	Z.ZZ	RS.2RS	Z
								RU.2RU
6900	10	22	6	0.3		275	130	34000	-	41000	0.01
6901	12	24	6	0.3		295	150	31000	-	36000	0.011
6902	15	28	7	0.3		440	230	26000	-	30000	0.017
6903	17	30	7	0.3		470	260	23000	-	28000	0.018
6904	20	37	9	0.3		650	375	19000	-	23000	0.036
6905	25	42	9	0.3		715	465	16000	-	19000	0.041
6906	30	47	9	0.3		735	510	14000	-	17000	0.045
6907	35	55	10	0.6		1110	790	12000	-	14000	0.073
6908	40	62	12	0.6		1400	1010	11000	-	13000	0.11
6909	45	68	12	0.6		1440	1110	9700	-	11000	0.12
6910	50	72	12	0.6		1480	1200	9000	-	11000	0.13
6911	55	80	13	1		1690	1440	8100	-	9600	0.18

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