638-zz Bearing 8x28x9mm

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638-zz

Bore Diameter:8 mm

Outside Diameter:28 mm

Width:9 mm

Weight:0.0303 kg

The 638-zz bearing is a Deep groove ball bearing with an inner diameter of 8 mm , an outer diameter of 28 mm, a width of 9 mm. It typically uses P0/P6/P5 grade precision tolerances and closed type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

8 mm

Outside Diameter:

28 mm

Thickness:

9 mm

Weight:

0.0303 KG

Specifications:

Structure:

Inside and outside the circle of

Brand:

ZRB or OEM

Precision Rating:

P0/P6/P5

Bearing Material:

Carbon steel

Seals Type:

closed

Transaction Information:

Payment term:

TT/DP/OA/LC

Delivery time:

10-20 days

Detailed description

638 bearing is suitable for high speed and high speed running, and very durable, need not often maintenance. These bearing small friction coefficient, high limit speed, simple structure, low manufacturing cost, easy to achieve high manufacturing precision. Size range and diverse in form, used in precision instruments, low noise motors, automobiles, motorcycles and general machinery and other industries, is the most widely used type of bearings in machinery industry. Mainly bear radial load, also can withstand a certain amount of axial load.

Bearing	d	D	Open	Closed	Rsmin	Dynamic	Static	Weight
model	mm inch	mm inch	mm inch	mm inch	mm inch	Cr N	Cor N	Kg
603	3 0.1181	9 0.3543	3 0.1181	3 0.1181	0.2 0.008	486	223	0.0014
609	9 0.3543	24 0.9449	7 0.2756	7 0.2756	0.3 0.012	3330	1410	0.016
6000	10 0.3937	26 1.0236	8 0.315	8 0.315	0.3 0.012	4160	1780	0.019
6007	35 1.3780	62 2.4409	14 0.5512	14 0.5512	1 0.039	16210	10420	0.155
6008	40 1.5748	68 2.6772	15 0.5906	15 0.5906	1 0.039	17030	11700	0.192
623	3 0.1181	10 0.3937	4 0.1575	4 0.1575	0.15 0.006	640	220	0.0016
628	8 0.3150	24 0.9449	8 0.3150	8 0.3150	0.3 0.012	3330	1410	0.017
629	9 0.3543	26 1.0236	8 0.3150	8 0.3150	0.3 0.012	4160	1780	0.191
6200	10 0.3937	30 1.1811	9 0.3543	9 0.3543	0.6 0.024	5110	2380	0.032
6202	15 0.5906	35 1.3780	11 0.4331	11 0.4331	0.6 0.024	7460	3700	0.045
6203	17 0.6693	40 1.5748	12 0.4724	12 0.4724	0.6 0.024	9560	4780	0.065
6204	20 0.7874	47 1.8504	14 0.5512	14 0.5512	1 0.039	12840	6650	0.106
6206	30 1.1811	62 204409	16 0.6299	16 0.6299	1 0.039	19460	11310	0.199
6207	35 1.3780	72 2.8346	17 0.6693	17 0.6693	1.1 0.043	25670	15300	0.288
6208	40 1.5748	810 3.1496	18 0.7098	18 0.7098	1.1 0.043	29520	18140	0.366
634	4 0.1575	16 0.6299	5 0.1969	5 0.1969	0.3 0.012	1880	680	0.0054
635	5 0.1969	19 0.7480	6 0.2362	6 0.2362	0.3 0.012	2810	1060	0.0089
636	6 0.2362	22 0.8661	7 0.2756	7 0.2756	0.3 0.012	3290	1360	0.0145
637	7 0.2756	26 1.0236	9 0.3543	9 0.3543	0.3 0.012	3340	1410	0.0258
638	8 0.3150	28 1.1024	9 0.3543	9 0.3543	0.3 0.012	4160	12780	0.0303
639	9 0.3543	30 1.1811	10 0.3937	10 0.3937	0.6 0.024	5120	2390	0.0371

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638-zz Bearing 8x28x9mm

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