12x2" Solid Rubber Contact Wheel 300x50mm Belt Grinder 70A

RAMS BRALIN 12x2" Solid Rubber Contact Wheel – 300x50mm, 70A Hardness

Take your belt grinding and polishing to the next level with the RAMS BRALIN 12x2" Solid Rubber Contact Wheel. Measuring 300mm OD × 50mm face width, this dynamically balanced wheel is built for precision, durability, and smooth, vibration-free operation on your belt grinder or finishing machine. Made in Mainland China.

Why Choose This Contact Wheel?

• Dynamically Balanced: Every single wheel is tested with a dial indicator to within 0.25mm tolerance — ensuring stable, vibration-free performance right out of the box.
• Heavy-Duty Rubber Construction: Crafted from strong, hard-wearing rubber bonded to a precision aluminum wheel core for excellent grip, longevity, and consistent results.
• Versatile Grit Compatibility: Works seamlessly with sanding belts from #36 to #1000 — ideal for coarse stock removal all the way through fine finishing and polishing.
• 70A Shore Hardness (Standard): The 70A hardness is the most common choice, offering a balance between aggressive material removal and smooth surface finishing. Custom hardness from 35A to 90A is available on request.
• Low Noise Operation: Superior rubber bonding and dynamic balancing minimize noise and vibration, creating a safer, more comfortable working environment.
• Long Service Life: Excellent adhesion between rubber and aluminum core ensures the wheel holds together through extended, heavy-duty use.

Specifications

Inner Hole Options

Select the inner hole configuration that matches your specific machine setup:

• ID 25mm / 28mm / 32mm (Through Hole) – For use on engine shafts or grinder axles.
• 24mm with Keyway (8mm × 3mm) – 24mm inner hole with 8mm width, 3mm depth keyway for keyed shaft fitment.
• 35mm for 6202 Bearings – 35mm inner hole with circlips (bearings NOT included).
• 6201 Bearing Installed – Pre-installed 6201 bearing (OD 32mm × TH 10mm × Hole 12mm).
• 6004 Bearing Installed – Pre-installed 6004 bearing (OD 42mm × TH 12mm × Hole 20mm).
• 6204 Bearing Installed – Pre-installed 6204 bearing (OD 47mm × TH 14mm × Hole 20mm).
• 6202 Installed – 12.7mm Hole – Pre-installed 6202 bearing (OD 35mm × ID 12.7mm × TH 11mm).
• 6202 Installed – 15mm Hole – Pre-installed 6202 bearing (OD 35mm × ID 15mm × TH 11mm).
• 6202 Installed – 15.875mm Hole – Pre-installed 6202 bearing (OD 35mm × ID 15.875mm × TH 11mm).
• 6005 Installed – 25mm Hole – Pre-installed 6005 bearing (OD 47mm × TH 12mm × Hole 25mm).

Custom Options Available

RAMS BRALIN offers a full line of contact wheels from 2" to 14" diameter, with face widths from 1" to 6", in plain or serrated surface styles. Need a specific durometer, size, or bore configuration? Custom fabrication is available — contact us with your requirements.

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What belt sizes are compatible with the 12x2" rubber contact wheel?

A: This contact wheel is compatible with sanding belts from #36 (coarse) to #1000 (fine), making it suitable for both aggressive material removal and fine surface finishing and polishing applications.

Q: Can I get this contact wheel in a different hardness or bore size?

A: Yes. The standard hardness is 70A (Shore), but RAMS BRALIN can custom-fabricate wheels with hardness ratings from 35A to 90A. A wide range of inner bore options — including through holes, keyway bores, and pre-installed bearing configurations — are also available. Contact us with your specific requirements.

Q: How is the balance quality of this contact wheel verified?

A: Every single wheel is individually tested using a dial indicator prior to shipping, with a tolerance of 0.25mm, ensuring dynamic balance and smooth, vibration-free operation on your grinder.

Q: What is the wheel made of?

A: The wheel features a solid hard-wearing rubber outer layer bonded to a precision aluminum core. The combination delivers excellent durability, grip for sanding belts, low noise, and a long service life.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.