Thin Section Ball Bearings

Featured Product from Alpine Bearing, Inc.

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Angular Contact Ball Bearings

The angular contact bearing is a conventional design. It features a circular pocket separator and a 30? contact angle along with approximately 67% of a full complement of balls. The chief benefit of this bearing is that it provides greater thrust capacity than a radial contact or four-point contact bearing. Because of its counterbored outer race, an angular contact bearing has unidirectional thrust capacity. This bearing should be mounted opposed to another bearing to establish and maintain the contact angle, and to support reversing thrust loads.

Four-Point Contact Ball Bearings

Standard bearing lines are most often designed to handle either radial or axial load conditions. The unique feature about the Kaydon Reali-Slim® four-point contact bearing line is that the gothic arch geometry of the inner and outer races enables a single bearing to carry three types of loading (radial, axial, and moment) simultaneously. This makes it the bearing of choice for many applications since a single four-point contact bearing can often replace two bearings, providing a simplified design.

Radial Contact Ball Bearings

The radial contact bearing is a single-row radial ball-bearing of conventional design with a Conrad-type assembly. The bearing is assembled by eccentric displacement of the inner race within the outer race, permitting insertion of about half of a full complement of balls. Although the radial contact bearing is designed primarily for radial load application, it can be configured to accept some axial (thrust) load in either direction. If thrust is a concern, a set of angular contact bearings should be considered for the specific application.


How to Use Our Site to Search for the Bearings You Need
At Alpine Bearing, you can conduct your bearing search by product number or bearing type. Here’s how.

Search by product number

  • Go to the home page,
  • Type the product number into the search bar on the top right of the page.
  • Hit enter.
  • Hit the up or down arrow to indicate how many bearings you need.
  • Hit the ADD TO QUOTE button.
  • Hit the REQUEST A QUOTE button.


Search by bearing type

  •  Go to the home page,
  • Click on the ADVANCED BEARING SEARCH bar.
  • Click on the type of bearing you’re looking for and use the dropdown menus to indicate the appropriate dimension and bore.
  • Or…would you rather talk to one of our seasoned sales engineers? Each one is familiar with our large, wide-ranging stock. We can ensure that you get the bearings you need at the best price available. We can also ship same day so your machines and your business keep rolling.


Download Alpine Bearing’s new spindle bearing catalog, featuring thousands of spindle bearings.

We Make The World Spin
Premium Quality Bearings Produced by the Industry’s Leading Manufacturers.
Since 1957, Alpine Bearing has sought the industry’s leading manufacturers to ensure the delivery of high quality bearings to OEMs, distributors, rebuilders, and individuals. We specialize in miniature and instrument, Thin section, spindle, Thinex and torque tube, stainless, chrome, radial, angular contact, and ball screw support bearings of all precisions. With thousands of bearings in stock, same day shipping is available on most products.

Alpine Bearing has a Class 10,000 clean room and as a certified re-lubrication facility for New Hampshire Ball Bearing (NHBB) & Nippon Miniature Bearing (NMB), we can customize our bearings to suit your needs. Bearings can also be re-packaged for optimum protection.