Shenzhen Xinchangsheng hardware CO,Ltd

  Model 684zz Hight quality deep groove ball bearings,ball bearing size Specifications   

 We accept customization , just tell me what's material and package you want. Huge stocks and sample are available for you. If you are interested in our products , welcome to contact us!

  Model 684zz Hight quality deep groove ball bearings,ball bearing size:

684 Ball bearing, inner diameter is 4mm, outer diameter is 9mm and width is 4mm, Bearing is made of Chrome Steel.

• Item: 684 Ball Bearing
• Type: Deep groove ball bearing
• Closures:  Shielded or Seal and Open are available.
• Dimensions: 4mm x 9mm x 4mm/Metric
• ID (inner diameter)/Bore: 4mm
• OD (outer diameter): 9mm
• Width/Height/thickness: 4mm
• Size: 4 x 9 x 4 mm
• Quantity: One Bearing
• Dynamic load rating Cr: 640 N
• Static load rating Cor: 230 N
• Limiting Speed:
  • Grease Lubrication: 59,000 RPM
  • Oil Lubrication: 70,000 RPM

684  bearing is a kind of multi-purpose miniature bearing. Our factory  manufacture this 684 bearing through strict inspection which sales in mass in Europe and North America market. It widely used in precision instruments, micro motor, remote control model, etc industries. We have a large stock of    684  bearing which could guarantee deliver in time.

 Factory Products Information: 

1) Stock  & Sample :  Available

2) OEM and ODM service

3) Favorable price.

4) Low friction.

5) Port:  Shenzhen, China  

6) Condition : New and Original

7) About us: Manufacture

8) Supply Ability: 1500000 Piece/Pieces per Month

9) Shield / closure:    Open,   Metal Shield,  Rubber Seals,   Teflon Sealed

10) Colors of rubber seal shields:   Black, Blue,  Red,  Yellow, Orange....

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

Quality Control:
Our company inspecter will check the products one by one before we sent it out, and we can also follow customers' special requests to control the quality. We have got little feedback of quality issue from customers these years. So please rest assure.

About us:

Shenzhen Xinchangsheng hardware CO,Ltd, was founded in 1995. We specialize in producing all kinds of bearings for 18 years. 65% of bearings export to Europe, North America, South America, Southeast Asia, South Asia, Middle east and other countries and regions.We accept customization , just tell me what's material and package you want. Huge stocks and sample are available for you. If you are interested in our products , welcome to contact us!