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Rubber Contact Wheel for Belt Polishing Machine

The rubber contact wheel is the key component where the abrasive belt contacts the workpiece in a belt polishing machine.

Wear-resistant Rubber Roller Assembly

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Introduction

1. Product Introduction

The rubber contact wheel is the key component where the abrasive belt contacts the workpiece in a belt polishing machine. Mounted on the spindle, it supports the belt and provides stable contact pressure during operation. With excellent elasticity, it absorbs vibration and distributes polishing pressure evenly, resulting in a smooth and consistent surface finish. It is widely used in stainless steel, aluminum, automotive, and hardware surface finishing industries.

2. Structure Classification

Category	Type	Features & Applications
By Structure	Solid Rubber Wheel	Entirely rubber-built, high rigidity and wear resistance, ideal for coarse polishing or deburring.
	Rubber-Coated Wheel	Aluminum or steel core coated with rubber, suitable for medium and fine polishing, well balanced.
	Interchangeable Ring Wheel	Replaceable rubber ring, easy maintenance, cost-saving.
By Hardness	Soft Wheel (30–50A)	Highly elastic, ideal for curved or precision finishing.
	Medium-Hard Wheel (60–70A)	Versatile and widely applicable.
	Hard Wheel (80–90A)	Strong support, suitable for heavy grinding or material removal.
By Function	Main Contact Wheel	Directly contacts the belt to apply polishing pressure.
	Idler / Tension Wheel	Guides or tensions the belt, not involved in grinding.
	Wheel Assembly	Includes bearings and hub for easy installation or replacement.

3. Technical Specifications

Item	Range / Description
Outer Diameter	150–500 mm
Width	30–150 mm
Hardness	30A–90A (Shore)
Material	NBR, EPDM, PU, or customized compounds
Balance Grade	G6.3 or higher
Mounting Type	Keyway / Threaded Shaft / Flange Mount

4. Key Features

Excellent elasticity to adapt to surface irregularities.
Vibration damping and noise reduction for stable operation.
Wear-resistant rubber coating ensures long service life.
Superior dynamic balance for accurate and smooth polishing.

5. Application Fields

Industry	Description
Stainless Steel Fabrication	Surface polishing of pipes, tank heads, and vessels
Automotive Manufacturing	Polishing of wheel rims, exhaust pipes, and trim parts
Hardware Products	Finishing of faucets, handrails, and handles
Aerospace & Medical	Precision part grinding and mirror finishing