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Wide Inner Ring Ball Bearings

Wide Inner Ring Ball Bearings

NTN Wide Inner Ring ball Bearings

Agricultural machinery requires better seals for contaminated conditions, provisions for misalignment, and economical mountings for shafts and housings.  A variety of standard and custom bearing designs suit these particular needs of the agricultural industry.
A complete line of insert ball bearings, shaft mounted with either locking collar or set screws or tapered adapters, are available from NTN. Several proven seal designs from low torque shields to heavy-duty triple lip seals are offered. Disc harrow
bearings are also available with either round, square, or hexagonal bores. All bearings are available with or without relubrication holes.  Several custom duty bearings have been designed for such applications as cam followers, idler pulleys, and planter wheels.

Fafnir Wide Inner Ring Ball Bearings

Size Range
1/2 in. - 4-15/16 in. shaft (15mm - 75mm shaft)

Designed for ease of mounting, Fafnir wide inner ring ball bearings carry radial, axial and combination loads. The assembly consists of a single-row ball bearing with an inner ring that extends on both sides for maximum shaft support. The extended inner ring slips onto the shaft and is attached by a self-locking collar or setscrew locking device. In either style, the bearing can be positioned easily on the shaft without shoulder, locknuts or adapters.

Wide inner ring ball bearings are commonly supplied as inserts in housed units for greater ease of mounting. The inner ring locking device attaches to the shaft, while bolt holes in the housing simplify assembly to machine frames. Self-aligning features further facilitate installation.

Housed units include pillow blocks, flanged cartridges, cylindrical cartridges and take-up units. The standard housing material is cast iron. Fafnir TDC® coated bearing inserts with nickel-plated or polymer SURVIVOR™ housings resist corrosion in difficult operating environments.

Typical Applications

  • Agriculture 
  • Fans and blowers 
  • Food processing 
  • Conveyors 

Expanded Options 

  • Advanced metallurgy
  • Special coatings for corrosion resistance 
  • Special designs for high speeds and high temperatures 
  • Enhanced lubrication features

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