Dodge ISN Mounted Spherical Roller Bearings

Dodge ISN – Faster Installation

The Dodge ISN bearings feature the patented IMPERIAL™ adaptor mount system that dramatically reduces installation time.
The user gets a complete, shaft-ready mounted bearing. Fifteen minutes is the new standard installation time, not up to two hours as with some other bearings. Turn the nut clockwise to tighten the adaptor on the shaft. There is no need for feeler gauges to set the clearance in the bearing. The clearance is set automatically. An easy-to-attach lock plate holds the adaptor nut in place.

Faster and Easier Removal

The Dodge ISN bearings feature a built-in bearing puller. After removing the lock plate, you turn the nut counter clockwise, pushing the bearing off the adaptor sleeve. Removing this bearing from the shaft is that simple. Removal is no longer an all day affair, and shaft damage is no longer a consequence.

Better Sealing Options

While running, the ISN bearings have an outstanding sealing system that provides 100% contact at 100% constant pressure, 100% of the time. The TRIDENT™ seal is a triple-lip and a face-rubbing seal that offers an improvement over other systems. For greater protection, this patented seal provides a flinger, shielding the seal and bearing from contamination and damage. An exclusion lip that makes contact with the flinger provides an additional barrier against contaminants. Seal/land positive contact up to ±1 degree of misalignment.

For high speed or high temperature applications there is a patented Labyrinth seal option that provides excellent sealing for relatively clean or hot environments. It also offers a 15% increase in maximum speed over standard SAF adapter mounted sphericals of the same shaft size. Flinger shields the seal and bearing from contamination/damage. Seal operates up to ±1 degree of misalignment.


Available in pillow block housing style, in sizes 30 – 140mm bore [dimensionally interchangeable with the SN 500 standard (DIN 736/ISO 113.

Numbering System

Example: P2B-515-TAF-207-RE

  • Housing Style Options
  • P2B = Pillow Block 2 bolt
  • P4B = Pillow Block 4 bolt
  • F4B = Flange Bearing 4 bolt


  • Housing Series
  • 5XX


  • Bearing Type Options
  • TAF


  • Size
  • Inches & 16th
  • 2 = 2 inches
  • 07 = 7/16 inches
  • 207 = 2-7/16″


  • Other options
  • R = Triple Lip Seal
  • E = Expansion Type

Download ISAF_ISN_IP Bearings TechSpec catalogue.