What is a support pillow?

A support pad can be inserted into a power tool equipped with jaws, such as a hand drill.

A support pad is a power tool accessory that secures and supports accessories used for sanding and polishing. The abrasive or polishing medium is securely held to the face of the backing pad by means of a locking disc or Velcro fasteners. Some pad types feature an integral chuck or drive shaft, while others attach to the tool spindle via a locking disc. Support pads are made from a variety of materials including rubber, aluminum and composite resins. They are available in a wide variety of sizes and specialized designs for specific applications.

Support pads serve as a support for soft or flexible polishing mops and abrasive discs used in power tools. They offer a secure yet flexible mounting that allows the sanding disc or pad to maintain good surface contact with flat and contoured surfaces. The pad also ensures that the maximum surface area of ​​the accessory is available during polishing or sanding. When sanding, the backing wheel keeps the wheel flat at all times, preventing the edge of the wheel from scratching the workpiece.

A support pad is attached to or inserted into a power tool in two basic ways. The first is a shaft or chuck built into the pad body. This variant is used on power tools equipped with jaws, such as hand drills. It is usually made of rubber and has a Velcro sheet or Velcro material permanently attached to your work surface. Discs and mops designed for use with these types of pads have a corresponding hook and loop sheet attached to them, which allows for a secure attachment to the backing pad.

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Pads designed for use on tools such as angle grinders have a center flange or recessed shoulder that fits over the axis of the grinder. The discs have a similar hole in the center and are placed over the tool spindle against the support pad. The power tool’s locking nut is then tensioned, thereby locking both the pad and disc securely in place. These backing pads are usually made of aluminum and are often used for heavy sanding.

Support pads are available in a variety of sizes, corresponding to the standard disc and mop sizes available. In addition to rubber and aluminum, composite resins and high-impact plastics are also commonly used to make support pillows. Special features such as profiled faces and cooling vents or fins are often integrated into the pad design for high-demand applications. These additions help to extend the life of the abrasive and protect the workpiece from overheated discs.

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