Humphreys Hitch and Trailer Parts

Serving Pensacola for over 25 Years!
Questions? Call Us +1 (850) 941-4010.

#13 Torflex® Axle Specifications

Suspension:

Features an independent suspension cushioned with rubber, providing a smooth, quiet ride with no transfer of road shock from one wheel to the other. (No springs required)

Bolt Pattern Options:

  • 8 on 6 1/2" (9/16" Standard or Optional 5/8")

Brake Options:

Forward Self-Adjusting.
  • 12" x 2" Electric (7K)
  • 12" x 2" Hydraulic Drum (7K)
  • 12 1/4" x 3 3/8" Electric (8K)
  • 12 1/4" x 3 3/8" Hydraulic (Duo-Servo Standard Optional Uni-Servo) Some availabe with Parking Feature. (8k)
  • Hydraulic Disc
  • ABS Equipped options for hydraulic brakes

Spindles:

25580 Inner and 02475 Outer Bearings
  • Short
  • Long

Tubing:

  • 3.88" OD Square

Lubrication:

  • Grease
  • Oil Bath
  • E-Z Lube®
  • Nev-R-Lube®
#13 Torflex® Mounting Details
Overhang Restrictions
SPINDLE
HUB TYPE
MINIMUM
MAXIMUM
Short
All
17.00"
43.00"
Long
All
18.00"
43.00"
Full Load Dimensions
Dexter Torflex Axle Full Load Dimensions
Dexter Torflex Axle Full Load Dimensions
Dexter Torflex Axle Full Load Dimensions
H=Center Line of Spindle to top of bracket. B=Top of bracket to ground. C=Top of bracket to top of tire.
D=Center Line of spindle to ground. E=Center Line of spindle to top of tire.
Start Angle
 
45° Down
22.5° Down
10° Down
10° Up
22.5° Up
 
Tire
H
B
C
H
B
C
H
B
C
H
B
C
H
B
C
H
B
C
D
E
10R17.5 HC
4.6
20.2
13.4
2.3
17.9
15.7
1.0
16.6
17.0
-0.1
15.5
18.1
-0.1
14.6
19.0
-2.0
13.6
20.0
15.6
18.0
215/75R 17.5
4.6
18.6
10.7
2.3
16.3
13.0
1.0
15.0
14.3
-0.1
13.9
15.4
-0.1
13.0
16.3
-2.0
12.0
17.3
14.0
15.3
12-16.5 LT
4.6
19.5
11.2
2.3
17.2
13.5
1.0
15.9
14.8
-0.1
14.8
15.9
-0.1
13.9
16.8
-2.0
12.9
17.8
14.9
15.8
9.50-16.5 LT
4.6
18.7
10.6
2.3
16.4
12.9
1.0
15.1
14.2
-0.1
14.0
15.3
-0.1
13.1
16.2
-2.0
12.1
17.2
14.1
15.2
9R 17.5 HC
4.6
20.0
12.5
2.3
17.7
14.8
1.0
16.4
16.1
-0.1
15.3
17.2
-0.1
14.4
18.1
-2.0
13.4
19.1
15.4
17.1
Start Angle
 
45° Down
 
Tire
H
B
C
D
E
10R17.5 HC
4.6
20.2
13.4
15.6
18.0
215/R 17.5
4.6
18.6
10.7
14.0
15.3
12-16.5 LT
4.6
19.5
11.2
14.9
15.8
9.50-16.5 LT
4.6
18.7
10.6
14.1
15.2
9R 17.5 HC
4.6
20.0
12.5
15.4
17.1
 
22.5° Down
 
Tire
H
B
C
D
E
10R17.5 HC
2.3
17.9
15.7
15.6
18.0
215/75R 17.5
2.3
16.3
13.0
14.0
15.3
12-16.5 LT
2.3
17.2
13.5
14.9
15.8
9.50 16.5 LT
2.3
16.4
12.9
14.1
15.2
9R 17.5 HC
2.3
17.7
14.8
15.4
17.1
 
10° Down
 
Tire
H
B
C
D
E
10R17.5 HC
1.0
16.6
17.0
15.6
18.0
215/75R 17.5
1.0
15.0
14.3
14.0
15.3
12-16.5 LT
1.0
15.9
14.8
14.9
15.8
9.50-16.5 LT
1.0
15.1
14.2
14.1
15.2
9R 17.5 HC
1.0
16.4
16.1
15.4
17.1
 
 
Tire
H
B
C
D
E
10R17.5 HC
-0.1
15.5
18.1
15.6
18.0
215/75R 17.5
-0.1
13.9
15.4
14.0
15.3
12-16.5 LT
-0.1
14.8
15.9
14.9
15.8
9.50-16.5 LT
-0.1
14.0
15.3
14.1
15.2
9R 17.5 HC
-0.1
15.3
17.2
15.4
17.1
 
10° Up
 
Tire
H
B
C
D
E
10R17.5 HC
-0.1
14.6
19.0
15.6
18.0
215/75R 17.5
-0.1
13.0
16.3
14.0
15.3
12-16.5 LT
-0.1
13.9
16.8
14.9
15.8
9.50-16.5 LT
-0.1
13.1
16.2
14.1
15.2
9R 17.5 HC
-0.1
14.4
18.1
15.4
17.1
 
22.5° Up
 
Tire
H
B
C
D
E
10R175 HC
-2.0
13.6
20.0
15.6
18.0
215/75R 17.5
-2.0
12.0
17.3
14.0
15.3
12-16.5 LT
-2.0
12.9
17.8
14.9
15.8
9.50-16.5 LT
-2.0
12.1
17.2
14.1
15.2
9R 17.5 HC
-2.0
13.4
19.1
15.4
17.1
Articulation Dimensions
Dexter Torflex Start Angle Illustration
No
 Load
Full
Load
Start Angle
Bracket Profile
H
L
H
L
45° Down
Low
6.49"
4.24"
4.55"
5.54"
45° Down
High
7.18"
4.24"
5.24"
5.54"
32° Down
Low
5.43"
5.09"
3.24"
5.92"
32° Down
High
6.12"
5.09"
3.93"
5.92"
22° Down
Low
4.55"
5.54"
2.25"
6.00"
22° Down
High
5.24"
5.54"
2.94"
6.00"
10° Down
Low
3.29"
5.91"
0.95"
5.86"
10° Down
High
3.98"
5.91"
1.64"
5.86"
Low
2.25"
6.00"
-0.05"
5.54"
High
2.94"
6.00"
0.64"
5.54"
10° Up
Low
1.21"
5.91"
-0.97"
5.06"
10° Up
High
1.90"
5.91"
-0.28"
5.06"
22° Up
Low
-0.05"
5.54"
-1.99"
4.24"
22° Up
High
0.64"
5.54"
-1.30"
4.24"