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608PS Plastic Ball Bearing 8x22x7 Spinner

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608-PS
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608PS Plastic Ball Bearing

Key Features

608PS is a Plastic Miniature Ball Bearing with rings composed of Delrin Plastic (Polyoxymethylene) and features StainlessSteel Balls as rolling elements. 608PS Plastic housing provides this bearing with a high corrosion resistance while also being lightweight and offering much more design flexibility when compared to their steel counterparts. 608PS is manufactured to have open sides and are pre-lubricated with Light Oil allowing them to be ready to use upon arrival. Our 600 Series Bearings have Larger OD which assists in high speed & larger load application.

Match Numbers / Interchange Numbers

A608-6, P608, SP608, AP08, 608PS, BB608-A500 GL

Applications / Industries

608PS Miniature ball bearings are used in a range of applications from Medical Machinery to Food Processing Equipment, Underwater Machinery, Marine Applications, Packaging Machinery, Medical Technology, Semiconductor Manufacturing Equipment, Chemical Lab Equipment and many more.

What are Ball Bearings?

A ball bearing is a type of rolling-element bearing that uses roller balls to separate two “races,” or bearing rings. The combination of the roller balls and bearing rings help to reduce surface contact and rotational friction across moving planes to accommodate axial loads.

Ball bearings help to facilitate motion by distributing loads and reducing friction for applications that have a high-speed requirement, ultimately aiding in extending the working life of your equipment.

What are Rolling-Element Bearings?

Rolling-element bearings, commonly called rolling bearings, are bearings that carry a load by utilizing “rolling elements” between two concentric, grooved rings called races. The motion of the bearing races allows for the rolling elements to move with very little resistance and with little slide variance.

Some common types of rolling elements include ball, cylindrical, spherical, barrel, needle, spindle, or tapered.

What is the Difference Between Open, Shielded, and Sealed Rolling Bearings? 

The main difference between open and sealed/ shielded bearings is the application of lubrication. The main difference between sealed and shielded bearings is the presence of a protective enclosure.

  • Sealed and shielded bearings are both lubricated with oil or grease in the bearing factory. However, a rubber sealed bearing protects the bearing by using a seal that contacts the inner and outer race. This provides superior protection at the cost of operating speed and temperature.
  • Open bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use.
  • Shielded rolling bearings contain an enclosure that helps to protect the working parts of the bearing from environmental debris that may be introduced and would otherwise reduce the ball bearing speed and lifespan. This metal shield is stamped onto the bearing and only contacts the outer ring, this allows for protection without sacrificing operating speed or temperature.
Dimensions & Material
Inner Diameter:
8mm
Outer Diameter:
22mm
Width:
7mm
Lubrication:
Light Oil - L1
Material:
Races: POM (Polyoxymethylene) Derlin Plastic | Balls: Stainless Steel AISI440C
Sizes:
ID 8mm x OD 22mm x W 7mm
Product Details
Closure Type:
OPEN
Speed Limit:
Grease: 1800 RPM | Oil: 2700 RPM
Basic Load Ratings:
Static (Cor) : 16 lbf | Dynamic (Cr) : 21 lbf
Interchange Numbers:
A608-6, P608, SP608, AP08, 608PS, BB608-A500 GL
608PS Plastic Ball Bearing 8x22x7 Spinner

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