Full Ceramic Bearing 684 for Skateboard with Size 4*9*2.5 mm

• Contact Angle: 15°
• Aligning: Aligning Bearing
• Separated: Unseparated
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Ceramic
• Model NO.: 684
• Transport Package: Standard Export Box
• Specification: 4*9*2.5
• Origin: China
• HS Code: 8482102000
• Production Capacity: 100000

Product Description

Full Ceramic bearing 684  for skateboard  with size 4*9*2.5 mm 

 

Product Name	Zirconia full ceramic ball bearings
Material	Zirconia
Color	white
Standard	DIN GB ISO JIS BA ANSI
Temperature	100 ºC~800 ºC
Application	Semiconductor, PDP, LCD,manufacturing equipment, plating equipment, synthetic textile manufacturing machine,Vacuum Environment

2.  characteristics of 684  ceramic bearing
 

1)      Chemical resistant. Can work in various chemicals.

2)      No need lubrication, clean, and can wash in the water.

3)      Non-magnetic and insulation. Reliable working.

4)      Constant working in high temperature till 800 Centigrade by choosing different cage.

5)      High speed.

6)      Light weight.

7)      Outstanding long time working in low temperature till -80 centigrade.

8)      Tolerance is as per normal bearings. Easy for assembly.

3.  Application 

Electro plating, electro polishing ,Food processing, vacuum applications.

Fiber processing, conveyor processing. Medical radiation, photo processing,

Computer assembly, electronics applications, Medicine equipment, wet applications

4 . We also can offer following bearings , please check  . 

ype	Boundary dimensions			Load rating		Limiting speeds
ID	d	D	B	Cr(KN)	Cor(KN)	grease	oil
683	3	7	2	0.56	0.22	54000	64000
684	4	9	2.5	0.564	0.277	53000	63000
685	5	11	3	0.63	0.28	45000	53000
686	6	13	3.5	0.952	0.442	40000	50000
687	7	14	3.5	1.032	0.513	40000	50000
688	8	16	4	1.102	0.592	36000	43000
689	9	17	4	1.168	0.668	36000	43000
6800	10	19	5	1.59	0.985	37000	48400
6801	12	21	5	1.44	1.04	32000	42900
6802	15	24	5	1.56	1.26	28000	37400