Full Line Comparison - Tuff Torq Corporation
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K664
Application
4WD Tractors
/ Articulating Mowers
/ Ride-On Mowers
/ Self-Propelled Industrial Machines
Reduction Ratio
37.22:1
22.19:1
Axle Torque (Rated)
37.22:1 = 420 (310)
22.19:1 = 250 (185) Nm (ft-lb)
Max. Tire Diameter
37.22:1 = 584 (23)
22.19:1 = 457 (18) mm (in)
Brake Capacity
37.22:1 = 330 (243)
22.19:1 = 216 (159) Nm (ft-lb) @ 300 N (67.5 lb) Brake Arm Force
Displacement (Pump/Motor)
10/10 cc/rev
Max. Input Speed
3,400 rpm
Axle Shaft Size
25.4 (1.0) mm (in)
1/8
Weight (dry)
23 (50.7) kg (lb)
Brake Type
Internal Wet Disc
Housing (Case)
Die-Cast Aluminum
Gears
Heat-treated Steel Gears
Differential
Automotive-type Bevel Gears
Differential Locks
Automatic ETC differential lock option
Manual differential lock option
Speed Control System
Foot Control: External Shock Absorber option
Auxiliary/External Hydraulic Outlets
Available option for power steering, lift, etc.
6.9L per minute
31 bars (450 psi) @ 2,000 rpm
External Filter Change
Available option
Bypass Valve (Roll Release)
Standard
Oil Reservoir
External Reservoir (available option)
Hydraulic fluid type
Proprietary Tuff Torq Tuff Tech drive fluid recommended. (Contact OEM for other options)
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KTM-13
Application
4WD Lawn Tractor
Rated Axle Torque
231 (171) Nm (ft-lb)
Motor Displacement
10 (Variable) cc/rev
Reduction Ratio
20.52
Weight (dry)
13 (5.9) kg (lb)
Max. Static Weight on Axle
260 (573) kg (lbs.)
Axle Shaft Size
25.4 (1) mm (in)
Max. Tire Size
457 (18) mm (in)
Brake Capacity
Front: N/A
Rear: Wet-Disk 388 (286) Nm (ft-lb)
Tow Valve
Yes MPa (bar)
Oil Capacity
2 (2.11) L (quarts)
Oil
SAE 10W30 Class CD
3/8
K664
Application
4WD Tractors
/ Articulating Mowers
/ Ride-On Mowers
/ Self-Propelled Industrial Machines
Reduction Ratio
37.22:1
22.19:1
Axle Torque (Rated)
37.22:1 = 420 (310)
22.19:1 = 250 (185) Nm (ft-lb)
Max. Tire Diameter
37.22:1 = 584 (23)
22.19:1 = 457 (18) mm (in)
Brake Capacity
37.22:1 = 330 (243)
22.19:1 = 216 (159) Nm (ft-lb) @ 300 N (67.5 lb) Brake Arm Force
Displacement (Pump/Motor)
10/10 cc/rev
Max. Input Speed
3,400 rpm
Axle Shaft Size
25.4 (1.0) mm (in)
Weight (dry)
23 (50.7) kg (lb)
Brake Type
Internal Wet Disc
4/8
Housing (Case)
Die-Cast Aluminum
Gears
Heat-treated Steel Gears
Differential
Automotive-type Bevel Gears
Differential Locks
Automatic ETC differential lock option
Manual differential lock option
Speed Control System
Foot Control: External Shock Absorber option
Auxiliary/External Hydraulic Outlets
Available option for power steering, lift, etc.
6.9L per minute
31 bars (450 psi) @ 2,000 rpm
External Filter Change
Available option
Bypass Valve (Roll Release)
Standard
Oil Reservoir
External Reservoir (available option)
Hydraulic fluid type
Proprietary Tuff Torq Tuff Tech drive fluid recommended. (Contact OEM for other options)
KTM-13
Application
4WD Lawn Tractor
Rated Axle Torque
5/8
231 (171) Nm (ft-lb)
Motor Displacement
10 (Variable) cc/rev
Reduction Ratio
20.52
Weight (dry)
13 (5.9) kg (lb)
Max. Static Weight on Axle
260 (573) kg (lbs.)
Axle Shaft Size
25.4 (1) mm (in)
Max. Tire Size
457 (18) mm (in)
Brake Capacity
Front: N/A
Rear: Wet-Disk 388 (286) Nm (ft-lb)
Tow Valve
Yes MPa (bar)
Oil Capacity
2 (2.11) L (quarts)
Oil
SAE 10W30 Class CD
Our Mission
To provide a secure future for our employees and benefit the community and the
environment, while providing the highest value of off-highway powertrain solutions in the
world to our customers.
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