LINEAR MOTION SYSTEMS

Redi-Rail ® Linear Guides
Technical Information
Linear Motion Systems
LIFE CALCULATIONS (cont.)
LOAD COMPARISON GRAPHS
To calculate an approximate life for redi-rail sliders, use the
following equation.
Inch Series
The value of L RR is in meters
L RR = 10 7 • (Cd/(LoadEquiv
• RF)) 3.0 (inches)
LC RRS = Slider Life Capacity which is found in the table
Load Equiv = Equivalent Radial Load found from the following equation:
Load Equiv = Cr • (
Load Axial
Ca
INCH SERIES
PART NUMBER MAX SPEED (fpm) MAX SPEED (ipm) Cd
RRS14 500 6000 421
RRS18 800 9,600 1,032
Metric Series
The value of L RR is in meters
L RR = (Cd/Load Equiv • RF) 3.0 x 100,000 meters
METRIC SERIES
M x M y M z
+ + + ) + Load Radial
M x Max M y Max M z Max
Cd = Slider Life Capacity which is found in the table
Load Equiv = Equivalent Radial Load found from the following equation:
Load Axial M x M y M z
Load Equiv = Cr • ( + + + ) + Load Radial
Ca M x Max M y Max M z Max
PART NUMBER MAX SPEED (m/min) MAX SPEED (m/s) Cd (N)
RR30 300 5.0 1,440
RR45 420 7.0 4,404
RR65 480 8.0 10,200
REDUCTION FACTOR
NOTE: Reduction factors apply to both inch and
metric series
RF = Reduction Factor of the Application or Environment
= 1.0 to 1.5 for very clean, low speed (75% Max) and heavy shocks & vibrations
Cr
Ca
Mx
My
Mz
(N)
7000 1340 lbs.
6000
5950 N
5000
4000
3000
2000
1000
(N)
(Nm)
22
20
18
16
14
12
10
8
6
4
2
0
(Nm)
70
60
50
40
30
20
10
0
0
1750
1500
1250
1000
750
500
250
(Nm)
180
160
140
120
100
80
60
40
20
0
225 lbs.
1000 N
RRS30 RRS45 RRS65 RRS14 RRS18
74 lbs.
330 N
RRS30 RRS45 RRS65 RRS14 RRS18
16 in.-lbs.
1.8 Nm
58 in.-lbs.
6.6 Nm
168 in.-lbs.
19.0 Nm
21 in.-lbs.
2.4 Nm
67 in.-lbs.
7.6 Nm
RRS30 RRS45 RRS65 RRS14 RRS18
49 in.-lbs.
5.5 Nm
598 lbs.
2660 N
186 lbs.
827 N
176 in.-lbs.
19.9 Nm
515 in.-lbs.
58.2 Nm
54 in.-lbs.
6.1 Nm
153 in.-lbs.
17.3 Nm
RRS30 RRS45 RRS65 RRS14 RRS18
424 in.-lbs.
47.9 Nm
111 in.-lbs.
12.5 Nm
337 lbs.
1678 N
1369 in.-lbs.
154.7 Nm
340 lbs.
1495 N
79 lbs.
351 N
201 in.-lbs.
22.7 Nm
850 lbs.
3767 N
168 lbs.
747 N
677 in.-lbs.
76.5 Nm
RRS30 RRS45 RRS65 RRS14 RRS18
(lbs.)
1600
1400
1200
1000
800
600
400
200
0
(lbs.)
400
350
300
250
200
150
100
50
0
(in.-lbs.)
200
150
100
50
0
(in.-lbs.)
600
500
400
300
200
100
0
(in.-lbs.)
1500
1200
900
600
300
0
Technical Information
The data and specifi cations in this publication have been carefully compiled and are believed to be accurate and correct. However, it is the responsibility of the user to
determine and ensure the suitability of Pacifi c Bearing® products for a specifi c application. Pacifi c Bearing’s only obligation will be to repair or replace without charge,
any defective components if returned promptly. No liability is assumed beyond such replacement. *Consult www.pacifi c-bearing.com for the latest technical updates.
800.962.8979 • www.pacific-bearing.com 137