The Mirka Spindle Bearing Kit MPA2186 125/150mm is a replacement spindle bearing kit for servicing compatible Mirka sanding tools. This is a spindle bearing kit designed for restoring spindle support in 125 mm and 150 mm sanding applications. Model Number: MPA2186. If your tool is starting to feel rough, noisy, or less consistent through the pad, this is the kind of maintenance part that helps get it back where it should be.

What matters here is fit and purpose. This is not a generic hardware pack. It is a Mirka service part built around spindle-bearing maintenance for the 125 mm and 150 mm size range. That makes it relevant for repair work where correct bearing support and related hardware matter more than trying to make an off-the-shelf part work.

For shops and techs who maintain air sanders or other Mirka sanding equipment, a proper spindle bearing kit saves time. Instead of piecing together individual replacement components, you start with a dedicated kit tied to a known part number. That helps reduce mistakes during ordering and speeds up planned maintenance.

The compact 32 mm length and 32 mm width tell you this is a small service component, not a major assembly. It is meant to support tool repair without taking up space in a parts drawer or service cart. For anyone keeping commonly used sanding tools running, that kind of small but specific part is worth having on hand before a machine goes down.

This Mirka replacement part makes the most sense for users who already know their machine needs spindle-bearing service or who are stocking common wear-and-service items for Mirka tools in the 125 mm and 150 mm class. If you are maintaining finishing tools in a body shop, woodworking shop, or production sanding setup, this is the sort of part that keeps a good machine from becoming dead weight over one worn bearing assembly.

Mirka Spindle Bearing Kit MPA2186 125/150mm is the right buy when the goal is fixing the tool, not gambling on parts

If you already know your Mirka sander needs spindle-bearing service, buying the correct kit beats trying to patch it together from generic pieces.

• Who it's for: Techs, shop owners, and serious users maintaining compatible Mirka 125 mm and 150 mm sanding tools.
• Why it stands out: It is a model-specific service part from Mirka, which is exactly what you want when fit matters more than saving a couple bucks on a generic bearing.
• Worth knowing: This is a repair and maintenance component, so verify your exact tool fit by the MPA2186 reference before ordering.

• What kind of product is this? It is a spindle bearing kit used for service and repair of compatible Mirka sanding tools.
• What size tools is it intended for? Source data lists compatibility with 125 mm and 150 mm applications.
• What is the part number? The model number is MPA2186, and the Mirka code listed in source data is 8994021811.
• How many come in a package? Source data lists quantity per package as 1 unit.