LINEAR MOTION SYSTEMS

Redi-Rail ® V-Guide System
Technical Information
Linear Motion Systems
LOAD CALCULATIONS
LOAD CONDITION B
L = applied load / number of wheel pairs
L R = wheel radial load
Lo = wheel load from moment
A = load offset dimension
L
A
B
Lo 1
B = track width dimension
F A = .5 for light duty, well lubricated use
F A = 1 for normal lubricated use
F A = 2 for dry, or harsh environments
Lo 2
Technical Information
LOAD CONDITION A
A
L
B
Lo 1 Lo 2
Lo 1 = L x (B - A) x F A
B
Lo 2 = (L x F A ) - Lo 1
Compare the greater of these loads to the rated moment and
radial load capacities.
Example:
Load is 100 lbs on 4 wheel carriage,
L = 100 / 2 pair wheels = 50 lbs.
A = 4", B = 10", F A = 1
Lo 1 = 50 x (10 - 4) x 1 = 30 lbs.
10
Lo 2 = 50 - 30 = 20 lbs.
Lo 1 = L x A x F A
B
Lo 2 = (L x F A ) + Lo 1
Compare the greater of these loads to the rated moment and
radial load capacities.
Example:
Load is 100 lbs. on 4 wheel carriage,
L = 100 / 2 pair wheels = 50 lbs.
A = 4", B = 6", F A = 1
Lo 1
= 50 x 4 x 1 = 33 lbs.
6
Lo 2 = 50 + 33 = 83 lbs.
LOAD CONDITION C
Lo 1 = L x A x F A
B
L
L R = (L x F A ) + Lo 1
Lo 1 = Lo 2
Compare the greater
of these loads to the
rated moment and
radial load capacities.
Example:
Load is 100 lbs. on
4 wheel carriage,
L = 100 / 2 pair
wheels = 50 lbs.
A = 4", B = 6", F A = 1
Lo 1 = 50 x 4 x 1 = 33 lbs.
6
L R = (50 x 1) + 33 = 83 lbs.
A
B
Lo 1
Lo 2
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.
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