Plastic Race Thin Section Ball Bearings

Polymer race thin section ball bearings from KMS are less expensive when compared to their steel counter parts for total overall cost while providing many solutions to age old problems.

thin section ball bearings

Plastic Race Thin Bearing Advantages:

  • Run Dry – Lube Free
  • Run in Liquids
  • Corrosion Resistant
  • Nonmetallic - Nonmagnetic
  • Can be Integrated for Value Added Savings
  • Lower Start Up Torque
  • Clean Room Capable- Sterilizable for Medical Applications

Polymer race thin section ball bearings are suitable for such demanding applications as light duty robotics, home satellite TV tracking systems, pan and tilt security cameras, and fueling systems connectors to name a few. A KMS thin race bearing will save weight, lower torque capability, run in liquids and no grease required. Switch the balls to glass, polymer or ceramic, and they become totally nonmetallic - nonmagnetic. To take it a step further in cost savings and efficiency, a polymer race bearing has the unique design flexibility to be integrated with the application to save on parts count and assembly time. This KMS plastic thin race ball bearing assembly is constructed with POM Acetal races and is fitted with SS316 balls. The rings are injection molded and ball grooves are machined for greater accuracy, performance and life. The bearing was designed for replacement of an existing steel thin race bearing that had minimal loading and speed - but required corrosion resistance. A savings was achieved over a conventional steel bearing in this size. MADE IN THE U.S.A.

Integrated Mounting Features of Polymer Race Thin Section Ball Bearings

KMS thin race ball bearings were used to create this electronic music streaming device. The bearings give the product the capability to rotate for volume control. This is an example of an integrated bearing assembly, where the inner and outer rings have mounting features designed into them. This KMS plastic thin race ball bearing assembly is constructed with specially compounded PBT polyester polymer for impact modification and a VR flame retardant capability while maintaining the mechanical properties needed for a plastic race bearing. The rings are injection molded and ball grooves are machined for greater accuracy, performance and life. The bearing was designed for replacement of an existing steel thin race bearing that had minimal loading and speed, but required light weight, smooth operation, and integrated mounting features. A substantial cost savings was achieved over a conventional steel bearing as well as lower torque performance improvement.

Integrated Labryinth Dust Shields

This KMS thin race ball bearing was designed with integrated mounting features to both the inner and outer rings for ease of mounting to avoid the difficulties of maintaining a tight shaft and housing tolerances in a thin polymer race bearing. Due to the design flexibility of a polymer race bearing labyrinth, dust shields were integrated to protect the bearing from dust or contamination intrusion. The rings are injection molded and ball grooves are machined for greater accuracy, performance and life. The bearing was designed for replacement of an existing steel thin race bearing that had minimal loading and speed, but required light weight, smooth operation, and integrated mounting features. A substantial cost savings was achieved over a conventional steel bearing as well as lower torque performance improvement.

Large Diameter Ball Bearings

This KMS thin race ball bearing was designed with integrated mounting features to the inner ring for ease of mounting to avoid the difficulties of maintaining tight shaft tolerances in a thin polymer race bearing. The outer race was designed with location features and reinforcement ribs for added strength. Due to the design flexibility of a polymer race bearing, a labyrinth dust shield was integrated to one side of the bearing to protect it from dust or contamination intrusion. The rings are injection molded and ball grooves are machined for greater accuracy, performance and life. The bearing was designed for replacement of an existing steel thin race bearing that had minimal loading and speed, but required light weight, smooth operation, and integrated mounting features. A substantial cost savings was achieved over a conventional steel bearing as well as lighter weight lower torque performance improvement.

Double Row - Integrated to the Application

KMS Bearings was able to design and integrate a thin race ball bearing into the existing application. Previously a steel thin race bearing was mounted into a plastic outer frame (wagon wheel). The inner ring of the bearing had a plastic adapter pressed into the bore to aid in the mounting of a computer board. Both the wagon wheel and the bore adapter were integrated into the rings of the bearing for a reduction of parts and assembly time, all the while improving the quality and bearing performance. No longer were there worries of maintaining mounting fits with dimensions that came at an additional cost through higher scrap rates. The rings were injection molded and ball grooves were machined for greater accuracy, performance and life. A double row construction was used to improve the axial rigidity over the single row steel bearing construction.

XR Series Polymer Race Thin Section Ball bearing- 4 Point Ball Groove Construction

KMS offers the unique "XR" series bearing style with 4-point contact deep ball groove geometry. This ball groove design enables the bearing to handle simultaneous radial, axial and moment loading while maintaining stiffness. The "XR" groove design will not lock up in the presence of off center loads and as a bonus they also have minimal radial and axial play. The XR groove can only be manufactured through a secondary machining process that produces a deep 4-point contact ball groove.

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