XR4-6, Single Row, Inch Sizes, Acetal Plastic Ball Bearings fitted with SS316 Balls, 4 Point Contact "XR Series"

List Price: $0.00
  • CUSTOM MADE TO ORDER – Minimum quantity may apply if not in stock.
  • MINIMUM ORDER: U.S.A. $25 - INTL. (Outside U.S.A.) $50
  • DISCOUNTS available for Distributors, OEM & higher quantities. Click "Add to Quote Cart" to request more information.

These bearings are only available on a made-to-order basis. KMS offers the unique "XR" Series bearing style with deep groove, 4-point contact ball groove geometry. This design enables the bearing to handle simultaneous radial, axial and moment loading while maintaining stiffness. As a bonus, they also have minimal radial and axial play. The "XR" groove design will not lock up in the presence of off center loads. These are made to order and minimum quantities may apply.

  • No lube
  • Low torque
  • Hygienic
  • Can run in liquids
  • Non-magnetic
  • Load and speed calculations are for reference only. KMS recommends testing in actual environment to be encountered.
  • Information presented is believed to be accurate at the time of publication but it is subject to change without notice.
  • Ball retainer material, and color are based on availability.

Additional Information

Weight 0.0063
Inch Metric inch
ID (in) 1/4
OD (in) 5/8
Width (in) 0.196
Row Type single
Flange no
Ball Type SS316
Max. RPM No Load 2352
Dynamic Load Capacity (LBS) 26
Static Load Capacity (LBS) 17
Standard Bearing Type Acetal races with SS316 Balls
Alternative Ball Materials
  • Acetal
  • Glass
  • Polypropylene
Alternative Raceway Materials
  • Kynar®
  • Peek
  • Polypropylene
  • Valox®
Availability Some bearings listed on our website may not be in inventory. Some may require a minimum order, and delivery could range from 3 to 6 weeks. Check with KMS for availability.

Plastic Vs Steel

Lubrication Free: Steel bearings require lubrication to reduce friction, dissipate heat and prevent corrosion. Due to the design of plastic ball bearings, there is no metal to metal contact, which results in less friction. Many times the liquids the bearings are running in can dissipate heat and act as the lubricant.

Read all the benefits of Plastic vs Steel Bearings