
Power Transmission Technology 
Specification
Equipment: Transfer Table
Screw Orientation: Horizontal
Load Supported on Dove Tail Ways: .20 Coefficient of friction
Load is 2500 lbs. Max (combined weight of product and table)
Stroke Length: 38"
Travel Rate: 600 inches per minute (Max.)
Input RPM: 2400
Duty Cycle: 20 cycles per hour, 16 hours per day, 250 days per year
Required Life: 5 years
Step 1: Determine Required Life (Inches)
38"/stroke * 2 strokes/cycle * 20 cycles/hr * 16 hrs/day * 250 days/year * 5 years = 30,400,000 inches
Step 2: Determine Thrust Load on Ball Screw
Multiply the thrust load by the coefficient of sliding friction (for horizontal application):
2500 lbs. * .20 Coefficient of Friction = 500 lbs.
Use this load for life calculations 
Step 3: Determine Required Ball Screw Dynamic Axial Loading to Achieve Required Life (page 7 of catalog):
Using formulas on page 7, input the 500 lbs. thrust load (Or equivalent load) and the required life. The result is the minimum rated load for a ball screw to achieve the required life.
Step 4: Determine Lead of the Screw:
Travel Rate (pg 10 of catalog):
USE THIS QUICK REFERENCE CHART TO SELECT APPROPRIATE BALL SCREW 
Model 
Screw
Diameter
x Lead 
Screw
Rated
Load 
Screw
Minor
Diameter 
Catalog
Page
Number 
Model 
Screw
Diameter
x Lead 
Screw
Rated
Load 
Screw
Minor
Diameter 
Catalog
Page
Number 
R10 
.375 x .125 
150 
0.300 
22 
R45, R47 
1.150 x .200 
2,450 
1.020 
38 
R11 
.375 x .125 
300 
0.300 
23 
R46* 
1.150 x .200 
490 
1.020 
38 
R15* 
.375 x .125 
25 
0.300 
22 
R48 
1.063 x .625 
3,300 
0.925 
39 
R16* 
.375 x .125 
50 
0.300 
23 
R50 
1.500 x .500 
9,050 
1.260 
40 
R20, R23 
.500 x .500 
850 
0.400 
2425 
R50A, R51A 
1.500 x .500 
12,900 
1.260 
41 
R21*, R22* 
.500 x .500 
140 
0.400 
2425 
R53, R54 
1.500 x .250 
4,250 
1.375 
42 
R30, R31 
.631 x .200 
825 
0.500 
26 
R54A 
1.500 x .250 
6,400 
1.375 
43 
R30A 
.631 x .200 
1,650 
0.500 
27 
R55, R56 
1.500 x 1.00 
8,000 
1.140 
44 
R32* 
.631 x .200 
170 
0.500 
26 
R57 
1.500 x .4375 
10,500 
1.140 
45 
R34 
.750 x .200 
1,900 
0.650 
28 
R58 
1.500 x 1.875 
7,350 
1.190 
46 
R35 
.750 x .200 
950 
0.650 
29 
R60, R63 
2.250 x .500 
19,800 
1.860 
49 
R36 
.750 x .200 
160 
0.650 
29 
R60A 
2.250 x .500 
29,700 
1.860 
50 
R37 
.750 x .500 
3,400 
0.630 
30 
R61 
2.000 x 1.00 
22,500 
1.730 
47 
R38* 
.750 x .500 
600 
0.630 
30 
R62 
2.000 x .500 
18,000 
1.730 
48 
R40, R41 
1.000 x .250 
1,625 
0.840 
31 
R70 
2.500 x .500 
22,000 
2.220 
51 
R40A 
1.000 x .250 
3,250 
0.840 
32 
R71 
2.500 x 1.00 
26,500 
2.220 
52 
R40RF, R41LF 
1.000 x .250 
3,250 
0.840 
34 
R74 
2.500 x .250 
6,300 
2.320 
53 
R40B 
1.000 x .250 
4,500 
0.840 
33 
R75 
2.500 x 1.50 
32,500 
2.100 
54 
R42 
1.000 x .250 
3,450 
0.870 
35 
R80 
3.000 x .660 
42,000 
2.480 
55 
R43 
1.000 x .500 
4,250 
0.870 
36 
R90, R91 
4.000 x 1.00 
85,000 
3.338 
56 
R44 
1.000 x 1.00 
2,300 
0.870 
37 
* DENOTES STAINLESS STEEL MODELS 



