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Vention Maintenance Guide

Some of Vention’s linear and rotary motion systems require periodic maintenance. This document will guide you through the required maintenance steps.

Proper lubrication minimizes friction, dissipates heat, reduces seal wear, keeps contaminants out, and ensures everything runs smoothly.
For all motion system that requires lubrication, we recommend using a suitable grease with a viscosity grade of NLGI 2. Vention also offers a synthetic lubricant in a squeeze-tube container (HW-CS-002-0001) and a grease gun designed for squeeze-tube containers (HW-TL-005-0001).

Prior to doing any maintenance work:

  • Never perform work on equipment that is energized.
  • Always follow proper lockout procedures as well as all local safety rules and regulations.
  • Make sure to use the proper safety equipment at all times.
  • Contents

    Linear Bearings (MO-LM-010-0001) and Shaft (MO-LM-014-XXXX)

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    When to lubricate:

    • Prior to the initial installation.
    Linear bearings are coated with rust preventive oil for shipping and storage and must be properly lubricated upon assembly.

    • Once a year, or after every 100 km of travel—whichever comes first.
    The lubrication interval is application-dependent. You may need to lubricate more frequently depending on the duty cycle, usage, and environment. If the lubricant appears to be dispersed before this point or has become dry or crusted, the maintenance interval should be reduced.

    Before lubrication:

    • Visually inspect the shafts and bearing seals for any accumulation of foreign matter.
    • Using a cloth with solvent, remove any contaminants and old lubricant that may still be in place on the shaft and linear bearing seals.
    • Cycle the linear bearing along the shaft several times. Wipe with a dry, lintless cloth and perform the lubrication immediately after.

    Lubrication Procedure:

    • All linear bearings come with standard straight grease fitting on one side (as shown below). We recommend injecting the grease through the grease fitting using a grease gun equipped with a standard grease fitting dispensing tip.
    • In order to distribute the grease throughout the linear bearing elements, it is recommended that the bearing be run two to five times over its complete operating stroke.

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    For light-duty applications in clean environments only: If the grease fitting is not accessible or not present (older design), you can apply the lubricant directly on the shaft using a clean cloth. Ensure that 100% of the shaft surface is covered with a thin layer of lubricant, then cycle the bearing along the shaft several times to ensure proper application and distribution. Do not leave a heavy film of lubricant on the shaft. Keep the shaft barely damp with lubricant.

    Ball Screw Assembly (MO-LM-003-XXXX)

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    When to lubricate:

    • Prior to the initial installation.
    The screw shaft and ball nut are coated with rust preventive oil for shipping and storage and must be properly lubricated upon assembly.

    • Once every 6 months, or after every 500,000 revolutions —whichever comes first.
    The lubrication interval is application-dependent. You may need to lubricate more frequently depending on the duty cycle, usage, and environment. If the lubricant appears to be dispersed before this point or has become dry or crusted, the maintenance interval should be reduced.

    Before lubrication:

    • Visually inspect the screw shaft and ball nut for any accumulation of foreign matter.
    • Using a cloth with solvent, remove any contaminants and old lubricant that may still be in place on the screw shaft and ball nut.
    • Cycle the ball nut along the screw shaft several times. Wipe with a dry, lintless cloth and perform the lubrication immediately after.

    Lubrication Procedure:

    • The ball nut comes with standard straight grease fitting (as shown below). We recommend injecting the grease through the grease fitting using a grease gun equipped with a standard grease fitting dispensing tip. The ball nut can be filled completely with grease.
    • In order to distribute the grease throughout the ball screw elements, it is recommended that the ball nut be run two to five times over its complete operating stroke.

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    For light-duty applications in clean environments only: If the grease fitting is not accessible or not present (older design), you can apply the lubricant directly on the screw threads using a clean cloth. Ensure that 100% of the screw shaft surface is covered with a thin layer of lubricant, then cycle the ball nut along the screw shaft to ensure proper application and distribution. Do not leave a heavy film of lubricant on the screw shaft. Keep the screw shaft barely damp with lubricant.

    Rack and Pinion Assembly (MO-LM-019-0001) and Gear Rack Segment (MO-LM-020-XXXX)

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    When to lubricate:

    • Prior to the initial installation.
    The pinion and gear segments are coated with rust preventive oil for shipping and storage and must be properly lubricated upon assembly.

    • Once every 6 months, or after every 20 km of travel —whichever comes first.
    The lubrication interval is application-dependent. You may need to lubricate more frequently depending on the duty cycle, usage, and environment. If the lubricant appears to be dispersed before this point or has become dry or crusted, the maintenance interval should be reduced.

    Before lubrication:

    • Visually inspect the gear rack segments for any accumulation of foreign matter.
    • Using a cloth with solvent, remove any contaminants and old lubricant that may still be in place on the gear rack segments.
    • Cycle the pinion housing along the gear rack segments several times. Wipe with a dry, lintless cloth and perform the lubrication immediately after.

    Lubrication Procedure:

    • We recommend applying the grease directly on the gear rack segments (as shown below) so that each tooth flank is barely damp with lubricant.
    • In order to distribute the grease throughout the gear rack segments and on the pinion, it is recommended to run the pinion housing two to five times over its complete operating stroke.

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    Rotary Actuator Assembly (MO-RM-002-0001)

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    When to lubricate:

    • Prior to the initial installation.
    The rotary actuator driving elements are coated with rust preventive oil for shipping and storage. The pinion gear teeth and the slewing bearing rolling elements and gear teeth must be properly lubricated upon assembly.

    • Once every 6 months, or after every 10,000 revolutions —whichever comes first.
    The lubrication interval is application-dependent. You may need to lubricate more frequently depending on the duty cycle, usage, and environment. If the lubricant appears to be dispersed before this point or has become dry or crusted, the maintenance interval should be reduced.

    Before lubrication - Gear elements only:

    • Remove the motor or the top plate to have clear access to the gear elements.
    • Visually inspect the slewing bearing and pinion gear teeth for any accumulation of foreign matter.
    • Using a cloth with solvent, remove any contaminants and old lubricant that may still be on the pinion and slewing bearing gear teeth.
    • Wipe with a dry, lintless cloth and perform the lubrication immediately after.

    Lubrication Procedure - Rolling elements:

    • The slewing bearing rolling elements must be greased using the standard elbow grease fitting (as shown below). We recommend injecting the grease through the grease fitting using a grease gun equipped with a standard grease fitting dispensing tip.
    • In order to distribute the grease throughout the rolling elements, it is recommended to manually turn the slewing bearing two to five full rotations in both directions.

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    Lubrication Procedure - Gear elements:

    • We recommend applying the grease directly on the pinion and slewing ring gear teeth (as shown below) so that each tooth flank is barely damp with lubricant.
    • In order to distribute the grease throughout the pinion and slewing ring gear, it is recommended to install the motor and run the rotary actuator two to five full rotations in both directions.

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