BOUNDER DRIVE TRAIN OPTIONS

SUPER TORQUE MOTORS AND BRAKES

Super Reliable Gearless Brush TENV motor design!

Super Torque 3 and Super Torque 4 motors
Super Torque 3 Motor
Super Torque 4M Motor


SUPER TORQUE 3 MOTORS (ST3)

Standard on All BOUNDER Power Wheelchairs & Gurneys
ST3 motor

  • Fast! -up to 11.6 MPH top speed, depending upon drive train selected
  • Very quiet operation
  • Reliable field proven, 6 pole, permanent magnet (PM) motors
  • Super Torque Motors have been used in production since 1979
  • GEARLESS! No plastic gears to break; no gear noise; no gear lubricant leaks; THERE ARE NO GEAR BOXES!
  • Very Quiet Operation
  • TENV (totally enclosed non-ventilated) design keeps dust, dirt and splashes outside the motor
  • Typical brush life exceeds ten years!
  • Rebuildable motors are mounted horizontally under the seat
  • Unbeatable 5 year warranty

Super Torque 4 Motors - Medium (ST4M-M)

Similar features as ST3M listed above except:
ST4 motor

  • Recommended for all users over 500 lbs.
  • Best hill climbing for users - ideal for off-road and Bariatric chairs
  • 6.5 MPH top speed, depending upon drive train selected
  • More powerful - produces significantly more torque than ST3M with 40% speed reduction
  • Improved motor and drive train efficiencies increase the driving range per battery charge while running cooler
  • Very Quiet Operation

Super Torque 3 & 4 Brakes (ST34B)

Used on both Super Torque 3 and Super Torque 4 Motors

  • Reliable electric brakes have been in production since 1986
  • Will hold a 500 lb occupant on a 14 degree hill
  • Can be used for emergency stops
  • Spring actuated to hold chair securely on grades even if power is lost


DRIVE PULLEY, BELT AND SPROCKET OPTIONS

Panther belt and sprocket

Non-slip Panther drive (Standard on H-frame style)

  • Extremely efficient
  • Best for operation in rain and snow
  • Uses synchronous gearbelts and sprockets
V-belt and pulley
V-belt drive
Conventional Frame Only
  • Very smooth and almost silent
  • Economical 4L belts are widely available
Both V-belt and Panther drive systems feature different sizes of interchangeable drive (motor) pulleys (or sprockets), which allow the top speed and torque of the chair (or gurney) to be matched to the needs of the user. Two sizes of drive wheel pulleys are also usually available for conventional frames. The factory will optimize drive train ratio based upon user profile information gathered when the chair or gurney is ordered. The dealer can easily make changes in the field should the user's needs change.

DRIVE WHEEL OPTIONS

H-Frame Chairs and Gurneys:

DW 13M SMOOTH
12.75"x4.00" metal drive wheels w/smooth tires
DW 13M KNOBBY
12.75"x4.00" metal drive wheels w/knobby tires

Conventional Power Chairs and Gurneys, and Manual Chairs:

DW 20M
20x2.125" black metal drive wheels
DW 16M
16"x2.125" black metal drive wheels

Manual Chairs and Gurneys:

DW 24 PHR
24"x1.75" metal spoke drive wheels w/handrims
DW 24PHRHD
24"x2.125" metal spoke drive wheels w/handrims
DW 26PHR
26"x2.125" metal spoke drive wheels w/handrims

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