April 30th, 2014 
Editor-Publisher
Compare linear bearing types and ask for a “Squadron Patch” or Poster.
|
Yes |
Requires Lubrication |
Yes |
|
Yes |
High Loads |
No |
|
Yes |
Rapid Oscillation |
No |
|
Yes |
High Acel/Decel |
No |
|
Yes |
Shock/Vibration |
No |
|
Yes |
Contamination |
No |
|
Yes |
Special Configurations |
No |
|
Yes |
FDA Compliant |
No |
|
Yes |
Chemically Inert |
No |
|
No |
Catastrophic Failure Mode |
Yes |
|
No |
Groove Shafting ( Brinelling) |
Yes |
|
Yes |
Vacuum Rated |
No |
|
Yes (400F) |
High Temp |
No (180F) |
|
Yes |
Linear + Rotary |
No |
|
Yes (100 million linear feet) |
Life Tested |
Yes (2 million linear inches) |
.04 – .08 Coefficient of Friction .010 – .001
Poor Self-Alignment/Compliant Very Good
At first glance, Black Racer linear bearings wipe the floor with linear ball bearings. However, linear ball bearings provide the lowest coefficient of friction for mechanical bearings – only surpassed by air bearings. Linear ball bearings are more compliant than sleeve bearings, thus they are more forgiving in applications where shaft parallelism is not exact. Linear ball bearings offer more self-alignment capability than sleeve bearings. Although Black Racer bearings are direct drop-in replacements for inch linear ball bearings, you should call LM76 to ensure your application is a good candidate. For more information call Mike Quinn: 1-800-513-3163 or email: mquinn@LM76.com
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