689-ZZ 689-2RS Deep Groove Ball Bearing

Deep groove ball bearing
Product Model:628 
Inside Diameter:8mm/inch
Outside Diameter:24mm/inch
Thickness:8mm/inch
Seal Type:OPEN,ZZ,2RS
Material:
Chrome steel(AISI 52100)
Stainless steel(AISI 440C)
Place OF Origin:CHINA
MINI QUANTITY:1000 PCS
DELIVERY TIME: 20DAYS

689-ZZ 689-2RS Deep groove ball bearing PACKING AND MARKS:
High carbon chrome bearing steel(GCr15)is the standard material for bearing rings and steel balls,
also stainless steel will be used upon request.

JIANGHUA cages adopt H62 Brass sheet & 08F cold rolling steel belt,in cases of corrosive
Environment,misalignment or high speed operation,stainless steel,nylons or phenolic resins will be used up request.

JIANGHUA shield is main material is SPCC,while stainless can be used upon request,Buna Nitrile is standard sealing material we use,fluorocarbon,Teflon and silicone seals are commonly specifies for high temperatures.

JINGHUA bearing are packed into one plastic tube or wrapped up rustproof paper then packed into carton,single package is also available,that is,each set bearing is contained into small spastic bag and packed into little paper box,the user who have special requirement in packing should point
Out in the contract.
In accordance with the standard of ISO 5753.the radial clearance can be divided into five
Groups:C0,C2,C3,C4,C5

Precision:P0,P6

689-ZZ 689-2RS Deep groove ball bearing:
The vibration and noise of JINGHUA bearing can be divided into two ways,according to the acceleration level,it is to be divided into Z1,Z2,Z3 and Z4,if measured by speed grade,it can be classified asV1,V2,V3 and V4.different vibration and noise requirement should be mentioned in order.

Grease:different types of greases can be used for shield & sesled bearings for different use.