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(May 24, 2011 - Rockford, IL)
Roller Lubrication
All smaller rollers (in the Redi-Rail, IVT, V-Guide, Commercial Rail, Hardened Crown Roller families, and smaller diameter Hevi-Rail bearings) are lubricated for long life. No additional lubrication is necessary. The rollers are sealed (or shielded) against the operating environment to prevent egress of lubricant, and prevent ingress of contaminants. Some larger rollers (in the Hevi-Rail family) are supplied with a grease access point and can be re-lubricated using a zerk fitting.
Raceway/Guideway Lubrication
To ensure long life, it is necessary to have a thin film of lubrication on the Raceway/Railway at all times. When properly applied, lubrication:
Reduces wear
Reduces stress on the contact surfaces
Reduces friction (and therefore heat buildup)
Allows for operation at specifications in this catalog (de-rating is required for un-lubricated applications)
Helps protect the metal surfaces against corrosion (rust and fretting corrosion)
Lubrication Type
Technical, environmental, ecological and economic factors will determine whether oil or grease should be used in an application. One of the most significant factors in the lubrication selected is the environmental conditions. If extreme conditions are expected, it is highly recommended that either PBC Linear or a representative from a lubrication company is consulted. This includes heavy contamination, when the expected particle size is smaller than 0.1 mm (0.005 in) as small particles can more easily bypass seals and wipers.
CAUTION! The compatibility of lubricants must always be checked! This check should be done under both static and dynamic conditions and within the operating environment. Some lubricants may have unexpected, negative reactions with the plastics, elastomers or non-ferrous metals within the products. It is possible to draw upon previous and practical experience or guidelines from the lubricant manufacturer. When in doubt, consult the lubricant manufacturer.
Initial Lubrication (during installation)
PBC Linear Guides and Raceways are shipped with a preservative lubrication applied to the raceway. During installation, it is necessary to apply additional lubrication. Provided there are no application conflicts, PBC recommends high quality lithium soap grease as the initial lubricant. This grease should be applied to the entire raceway, not just the portion used during normal operation. Oil or grease may be used for re-lubrication.
Note: Coated/Plated rails, Commercial Rail, Hardened Crown Roller and Hevi-Rail rails are typically shipped without any preservative lubrication. See the Hevi-Rail section for more details: sandblast and lightly oiled option is available for Hevi-Rail.
Periodic Lubrication/Maintenance
The lubrication interval is dependent on many operating and environmental conditions, such as load, stroke, velocity, acceleration, mounting position/orientation, type of lubrication used, temperature, humidity, UV exposure, etc. The actual lubrication interval should be determined by tests conducted under actual application conditions.
While the actual lubrication intervals are application specific and determined only through testing, the following guidelines can typically be used as a starting reference point under
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| CYM35UUM KOYO | 35 | 72 | 29 |
| CYM30UUM KOYO | 30 | 62 | 29 |