3M™ Rubber Slotted Expander Wheel 77722, 3 in x 3 in x 5/8 in-11 Internal

The 3M™ Rubber Slotted Expander Wheel utilizes centrifugal force to grip abrasive belts while grinding. Use this wheel on a 3M™ Inline Sander or 3M™ Match & Finish Tool. It comes in three diameters and two center hole diameters.
Special Price $272.37 Regular Price $320.43
UPC 00051144777228
3M ID 7100073953
Packaging Each
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Soft Conformable Rubber, Radiused Edges

The 3M™ Rubber Slotted Expander Wheel can be mounted on a 3M™ Inline Sander or 3M™ Match & Finish Tools using a 3M™ Wheel Adapter Kit. The expander wheel has soft 25-durometer rubber to keep it conformable for applications like stainless steel finishing. Radiused edges reduce transition lines as the tool makes passes across the work surface.

Centrifugal Force Is More Secure

This wheel uses centrifugal force to grip the belt rather than conventional pneumatic wheels, or tires, which rely upon the amount of air pressure they are filled with. Centrifugal force is ultimately far more efficient and consistent.

In three diameters of 3, 3.4 or 5 inches, the smaller diameter tends to obtain a tighter grade pattern and gets into tighter spaces.

Recommended Applications

The 3M™ Rubber Slotted Expander Wheel is ideal for finishing stainless steel when mounted to a 3M™ Inline Sander or 3M™ Match & Finish Tool. Having mounted the expander wheel to the sander using the 3M™ Wheel Adapter, follow a 2-step process for finishing stainless steel, either with or without a weld:

The coated abrasive belt 777F, 120 grit, can be used to set the grain and remove defects using the 3M™ Inline Sander (28339) at 3,500 rpm.

Use the Scotch-Brite™ Surface Conditioning Belt, A Med, to blend the surface to a #4 finish.


  • Use 3M™ Wheel Adapter Kit to mount on 3M™ Inline Sander or 3M™ Match & Finish Tool
  • Soft 25-durometer rubber helps to create a fine finish
  • Radiused edges reduce transition lines
  • Uses centrifugal force to grip the abrasive belt
  • More consistent performance than pneumatic wheels
More Information
3M ID 7100073953
Part number 77722
Keywords grinding, sanding, Surface Conditioning
Global Product Hierarchy Tools & Equipment > Power Tools > Power Tool Parts & Accessories
Abrasive Material Non Pertinent
Backing Material Non Pertinent
Center Hole Diameter (Metric) 15.748 mm
Color Family Black
Product Color Black
Product Type simple
Quantity 0
Trademark 1 3M™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 1825
Base - Billing Unit EA
Base - Customary Height Dimension 6.732283465
Base - Customary Length Dimension 8.385826772
Base - Customary Width Dimension 8.385826772
Base - Metric Gross Weight 499.0 G
Base - Metric Height Dimension 0.171 M
Base - Metric Length Dimension 0.213 M
Base - Metric Width Dimension 0.213 M
Base - Item Quantity 1
Base - Unit EA
Consumer - Billing Unit EA
Consumer - Customary Cubic Dimension 473.42824803759845 ci
Consumer - Customary Gross Weight 1.1001066883025392 lbs
Consumer - Customary Net Weight 1.1001066883025392 lbs
Consumer - Customary Height Dimension 6.732283464566929 in
Consumer - Customary Length Dimension 8.385826771653543 in
Consumer - Customary Width Dimension 8.385826771653543 in
Consumer - Metric Cubic Dimension 7758.099 CCM
Consumer - Metric Net Weight 499.0 G
Consumer - Metric Height Dimension 0.171 M
Consumer - Metric Length Dimension 0.213 M
Consumer - Metric Width Dimension 0.213 M
Consumer - Item Quantity 1
Consumer - Total Unit Quantity 1
Consumer - Previous Packaging Level Quantity 1
Consumer - Item Unit EACH
Consumer - Unit EA
Shipper - Total Unit Quantity 1
Shipper - Previous Packaging Level Quantity 1
Pallet - Total Unit Quantity 999
Pallet - Previous Packaging Level Unit LOOS
Pallet - Pallet Layer Quantity 1
Pallet - Shipping Container Per Layer Quantity 999
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