These linear drives are available with a combination shaft wiper and grease fitting for automatic cleaning and lubrication of the drive shaft. The fitting removes dirt from the shaft while the drive is running and assures adequate shaft lubrication simultaneously with manufacturer-approved grease. The combination is useful in applications in which metal chips, dust and other particulate contaminants may be falling onto the shaft. Shaft wipers can be specified with or without the grease fittings depending on the application. The shaft wiper is an O-ring made of specially formulated rubber, which is mounted in a Delrin plastic fitting.
