|
Ball Screw Actuators (Imperial) |
|
 |
Duff-Norton Ball Screw actuators come in many standard models, or
can be custom designed for any application up to 50 tons.
Duff-Norton Ball Screw actuators provide high efficiency and high
speed in one linear positioning package. The positive action of the low
friction ball screw and nut design provides longer life at load and requires
less power to achieve a specified thrust. Ball screw actuators can be used
individually, in tandem or as part of a larger mechanical system. With lifts up
to 20 feet, Duff-Norton Ball Screw actuators offer the perfect solution to many
linear positioning applications.
-
Anti-Rotation Models available - contact our customer service
personnel for more information
-
Move loads and apply force more efficiently than other mechanical
actuators
-
Require less power by providing positive mechanical action
-
Permit faster operation and longer life under load
-
Long predictable ball screw and ball nut life
-
Handles full load in tension or compression
|
|
|
|
|
Ball Screw Actuator Performance Specifications (Imperial) |
Performance Table Instructions
When reviewing any Duff-Norton Actuator Performance Specifications Table, as
part of the process of selecting the best-suited actuator for your application,
there are several important worm-gear ratios to consider.
Standard Ratio – is frequently chosen
when higher speeds and efficiency ratings are desired.
Optional Ratio(s) – is frequently
chosen when the application requires higher lifting capacities, lower speeds, or
to ease the use of a handwheel.
|
|
Capacity (Tons) |
1/2 |
1 |
2 (HL) |
2 |
3 |
5 (HL) |
5 |
10 (HL) |
10 |
20 (HL) |
20 |
25 |
50 |
|
Max. Speed Cface Driven (in/min)** (pg. 114) |
— |
— |
287.5 |
72.0 |
118.5 |
287.5 |
136.5 |
215.5 |
102.0 |
215.5 |
108.0 |
81.0 |
— |
|
Max. Speed Red. Driven (in/min)** (pg. 108-109) |
— |
— |
57.5 |
14.4 |
23.7 |
57.4 |
27.2 |
43 |
20.4 |
43.1 |
21.6 |
20.1 |
33.4 |
|
Dimensional Information Shown on Page(s): |
52 |
53 |
54-59 |
54-59 |
60-61 |
62 |
63 |
64 |
65 |
66 |
66 |
67 |
68-69 |
|
Lifting Screw |
Diameter (in) |
5/8 |
3/4 |
1 |
1 |
1 11/64 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
2 1/4 |
2 1/4 |
3 |
4 |
|
Lead (in) |
0.200 |
0.200 |
1.000 |
0.250 |
0.413 |
1.000 |
0.474 |
1.000 |
0.474 |
1.000 |
0.500 |
0.660 |
1.000 |
|
Worm Gear Ratios |
Std. |
5:1 |
5:1 |
6:1 |
6:1 |
6:1 |
6:1 |
6:1 |
8:1 |
8:1 |
8:1 |
8:1 |
10 2/3:1 |
10 2/3:1 |
|
Optional No. 1 |
20:1 |
20:1 |
24:1 |
24:1 |
24:1 |
24:1 |
24:1 |
24:1 |
24:1 |
24:1 |
24:1 |
32:1 |
32:1 |
|
Optional No. 2 |
— |
— |
12:1 |
12:1 |
12:1 |
12:1 |
12:1 |
— |
— |
— |
— |
— |
— |
|
Turns of Worm for 1" Stroke |
Std. |
25 |
25 |
6 |
24 |
14.526 |
6 |
12.667 |
8 |
16.889 |
8 |
16 |
16.16 |
10.67 |
|
Optional No. 1 |
100 |
100 |
24 |
96 |
58.106 |
24 |
50.667 |
24 |
50.667 |
24 |
48 |
48.48 |
32 |
|
Optional No. 2 |
— |
— |
12 |
48 |
29.053 |
12 |
25.334 |
— |
— |
— |
— |
— |
— |
|
Worm Torque at No Load (in-lb) |
Std. |
0.5 |
2 |
10 |
3 |
5 |
20 |
10 |
20 |
15 |
50 |
40 |
40 |
90 |
|
Optional No. 1 |
0.5 |
2 |
10 |
3 |
5 |
20 |
10 |
20 |
15 |
50 |
40 |
40 |
90 |
|
Optional No. 2 |
— |
— |
10 |
3 |
5 |
20 |
10 |
— |
— |
— |
— |
— |
— |
|
Maximum Horsepower per Actuator |
Std. |
1/3 |
1/2 |
2 |
2 |
2 |
4 |
4 |
5 |
5 |
5 |
5 |
8 |
15
|
|
Optional No. 1 |
1/6 |
1/4 |
1/2 |
1/2 |
1/2 |
3/4 |
3/4 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
2 1/2 |
6 |
|
Optional No. 2 |
— |
— |
3/4 |
3/4 |
3/4 |
2 |
2 |
— |
— |
— |
— |
— |
— |
|
Starting Worm Torque at Full Load (in-lb) |
Std. |
10.5 |
22 |
180 |
50
|
110 |
500 |
220 |
800 |
350 |
1375 |
700 |
925 |
2700 |
|
Optional No. 1 |
5.0 |
11 |
80 |
25
|
50 |
206 |
90 |
400 |
175 |
625 |
325 |
475 |
1500 |
|
Optional No. 2 |
— |
— |
110 |
30
|
68 |
300 |
145 |
— |
— |
|
— |
— |
— |
|
Running Worm Torque at Full Load (in-lb) |
Std. |
9.5 |
21 |
160 |
45 |
100 |
410 |
180 |
700 |
300 |
1270 |
650 |
825 |
2200 |
|
Optional No. 1 |
4.0 |
10 |
70 |
20 |
45 |
183 |
80 |
290 |
150 |
570 |
300 |
425 |
1200 |
|
Optional No. 2 |
— |
— |
100 |
25 |
60 |
270 |
125 |
— |
— |
— |
— |
— |
— |
|
Efficiency Rating (%) |
Std. |
67.0 |
60.6 |
66.3 |
58.9 |
65.7 |
64.7 |
69.8 |
56.8 |
62.8 |
62.7 |
61.2 |
59.7 |
67.8 |
|
Optional No. 1 |
39.8 |
31.8 |
37.9 |
33.2 |
36.5 |
36.2 |
39.3 |
45.7 |
41.9 |
46.5 |
44.2 |
38.6 |
41.4 |
|
Optional No. 2 |
— |
— |
53.0 |
53.1 |
54.8 |
49.1 |
50.3 |
— |
— |
— |
— |
— |
— |
|
Weight with 6" Stroke (Raise) (lb) |
2.8 |
5 |
20 |
20 |
21 |
40 |
40 |
50 |
50 |
115 |
115 |
235 |
|