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4000 Series Rigid Tandem

4000 Series Rigid Tandem

The AxleTech 4000 Series Planetary Rigid Tandem Axles are true high speed units suitable to many heavy-duty applications where sustained higher vehicle speeds and longer operating distances are an integral requirement on the vocation. The TF/BF units feature twin high entry carriers for straight line parrallel driveline arrangement. The TF/SF units feature an on axle center line single reduction carrier input for the rear most tandem axle. These tandem axles are specially designed to handle harsh environments and heavy load combinations in order to meet and exceed the most severe duty cycle requirements.

They have the capability to handle bogie load ratings up to 35,000 lb (15,900 kg) and train weight ratings of up to 110,000 lb (49,900 kg). Robust spiral bevel gearing and balanced design planetary gearing, combined with rugged high strength axle housings lead to durable products with high reliability. A variety of tracks and suspension interface mountings are available to meet virtually any customer requirement.

Technical Specifications
  • Capacity
  • 44,000 lb / 20,000 kg
  • Housing
  • Cast steel
  • Differential
  • With driver-controlled lock (DCDL) or limited slip
  • Final ratio
  • 4.80, 5.05, 5.33, 5.65, 6.00, 6.40, 6.86, 7.38, 8.00, or 8.73
  • Flange to flange
  • 87.01 in / 2210 mm with drum brakes or 87.80 in / 2230 mm with disc brakes
  • Brakes
  • Wedge, s-cam, or air disc
  • Wheel mounting
  • Hub piloted, 10 stud, 13.19 in / 335 mm bolt circle
  • Minimum wheel size
  • 20 in / 508 mm
  • Typical axle weight
  • 2,646 lb / 1,200 kg
  • Typical oil capacity
  • 30.6 pt / 14.5 L per axle