Murray 85501MA Snowblower Trunnion Bearing

Product Overview:

Supports controlled movement at a pivot or rotating support point within a snow blower’s mechanical system. The Murray 85501MA Snowblower Trunnion Bearing helps maintain the position of connected components while allowing the movement required by the surrounding mechanism. Its bearing surface supports alignment and helps manage friction between moving parts during operation. Consistent bearing performance contributes to smooth mechanical movement and supports the intended operation of the snow blower’s OEM system.

Friction Control:

Supports moving components at the bearing interface, helping reduce friction during pivoting or rotational movement. Its contact surface helps maintain stable support while allowing connected parts to move as designed. Proper bearing condition contributes to smoother operation and limits unnecessary wear at the supported point.

Mechanical Support:

Maintains support and alignment for the mechanism connected to the trunnion bearing. Its position helps control movement between adjoining components and supports consistent mechanical operation under normal working loads. Wear or restricted bearing movement can increase friction and interfere with the motion of the connected assembly.

Replacement Guidelines:

Replacement of the Murray 85501MA Snowblower Trunnion Bearing may become necessary when bearing-surface wear, binding, seizure, or excessive looseness interferes with the movement of connected components. A properly functioning replacement restores stable support and alignment while helping maintain smooth movement within the snow blower’s mechanical system.

Common Signs of Wear:

• Visible wear or damage on the bearing surface.
• Binding or restricted movement in the supported mechanism.
• Unusual grinding or squealing noises from the associated assembly.
• Excessive movement or looseness around the bearing support.
• Irregular operation of the connected drive or auger mechanism.
• Seized bearing movement that interferes with normal mechanical operation.

Equipment Compatibility:

The Murray 85501MA Snowblower Trunnion Bearing is identified for Murray snow blower applications, with additional applications reported for selected Craftsman, MTD, and related equipment. Verify the OEM part number and intended application against the equipment’s model identification and the manufacturer’s official parts documentation.

The Murray 85501MA Snowblower Trunnion Bearing supports smooth auger system movement and reduces friction. Inspect the bearing regularly for wear, looseness, or damage to maintain dependable snowblower operation.

This part fixes the following symptoms:

• Auger produces grinding or squealing noises.

• Excessive play in the auger assembly.

• Worn or damaged trunnion bearing.

• Auger rotation feels rough.

• Increased vibration during operation.

Noisy Auger Bearing

Quick Check: Rotate the auger manually and listen for grinding or scraping sounds.

Fix Suggestion: Replace the worn trunnion bearing with a new Murray bearing.

Prevention Tip: Inspect the auger assembly before each snow season.

Excessive Auger Movement

Quick Check: Check for side-to-side movement around the bearing location.

Fix Suggestion: Install a replacement trunnion bearing to restore proper support.

Prevention Tip: Replace worn bearings before excessive wear damages nearby parts.

Rough Auger Rotation

Quick Check: Spin the auger by hand to detect resistance or binding.

Fix Suggestion: Replace the damaged bearing if rotation is not smooth.

Prevention Tip: Keep the auger housing free of packed snow and debris.

Excessive Vibration

Quick Check: Inspect the trunnion bearing for wear or looseness.

Fix Suggestion: Replace the bearing and verify correct installation.

Prevention Tip: Perform routine drivetrain inspections during seasonal maintenance.

Customer Experience: The Murray 85501MA Snowblower Trunnion Bearing fit perfectly and eliminated the vibration that had developed in my auger assembly.

• What is the function of the Murray 85501MA Snowblower Trunnion Bearing?

  The trunnion bearing supports a designated mechanical connection within the snowblower, helping maintain controlled movement at the supported point during equipment operation.

• What role does the trunnion bearing's construction play in its operation?

  The bearing's construction supports its intended mechanical connection. Review documented design and dimensional details to understand the component's role in the snowblower mechanism.

• What OEM details should be reviewed when purchasing the Murray 85501MA Trunnion Bearing?

  Review the product listing and available manufacturer documentation for OEM designation, part identification, and documented application details before making a purchasing decision.

• What are the common signs of a worn snowblower trunnion bearing?

  Excessive play at the supported connection, unusual noise, rough movement, visible wear, or difficulty moving the connected mechanism can indicate that the bearing needs inspection.

• How should a snowblower trunnion bearing be maintained to help extend its service life?

  Inspect the bearing and surrounding connection periodically for looseness, wear, debris, and damage. Use the equipment manufacturer’s lubrication and maintenance guidance to help support reliable operation.