Bearing Maintenance Trainer



DAC Bearing Maintenance Trainer, #204

This realistic, heavy-duty device allows for convenient and consistent training in the identification, installation and removal of a variety of industrial-quality rolling element bearings.

The basic device provides for two student workstations. Using two of four CNC-machined stub shafts provided, in combination with shaft mounting brackets, training can take place at both ends of the device.

A selection of large diameter spherical roller bearings, radial ball bearings, angular contact bearings, cylindrical roller bearings, a needle bearing and shaft seals are provided. Additionally, "loose" and "interference" fit bearing seating locations are provided.

An extended version adds a 24" long, multi-land shaft and with two pillow blocks This allows an even greater variety of configurations and fits, in addition to allowing for exercises using an arbor press and the locating of a shaft within pillow blocks.

This device, together with a variety of hands-on exercises, creates a complete performance-based course in the maintenance of industrial bearings.


  • Steel baseplate, 30" long, allowing for convenient mounting across the width of a standard shop bench.
  • (4) Steel shaft mounting brackets which, when used in combination, allow for mounting of shafts in different orientations.
  • (4) High-grade alloy steel CNC-machined stub shafts allowing for installation of all bearings.
  • Provision for installation of radial ball bearings and cylindrical roller bearings with loose and interference fit applications.
  • Provision for installation of spherical roller bearings on a tapered shaft, adapter sleeve and withdrawal sleeve. (Includes two different internal clearance calculations.)
  • Provision for installation of a radial ball bearing in an externally seated application.
  • Provision for bearing removal using a gear puller on a back-up gear.
  • (8) Bearing types provided.
  • Shaft seal application.
  • High-durability urethane coatings throughout.
  • Overall size of 30"L x 12"W x 12"H (125 lbs.).


  • All features as listed above.
  • CNC-machined, 24" long, multi-land shaft.
  • Large diameter spherical roller bearing pillow block.
  • Radial ball bearing pillow block with eccentric locking collar.

Please contact us regarding detailed specifications, options, pricing and custom applications.

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