3M Abrasive Systems Division3M™ Cubitron™ II Gear Grinding Wheels

Precision grain shape is the key to the superior performance of 3M™ Cubitron™ II Gear Grinding Wheels.

• Drastically reduces risk of burning

• Reduced grinding time

• Less wheel dressing

• Longer wheel life

• Consistent grinding performance

grinding expertisePrecision

3M™ Cubitron™ II Gear Grinding Wheels are made up of geometrically defined cutting edges, meaning each and every ceramic grain is exactly the same engineered shape.

The Cubitron II construction elevates grinding performance to the level of micro-milling. The key to its superior performance lies with its precision shaped grains. The benefits of this new technology are clear.

• Drastically reduces risk of burning — Even under severe grinding conditions, this new wheel has not caused any burning, so you can be confident in the reliability of this wheel under typical grinding parameters.

• Less grinding time — In several applications, grinding cycles have been reduced by as much as 50%.

• Less wheel dressing — For many applications, this wheel is able to maintain shape and free-cutting ability for an extended time, resulting in more time between dressing cycles which promotes longer wheel life and less down-time for wheel dressing.

• Consistent performance time after time — In repeated tests and trials, this wheel generated reliable and consistent results making the grinding process easier and more predictable.

• Improved form holding — Less dressing needed.

• Reliable surface finish — All of these productivity benefits are delivered without sacrificing critical surface finish requirements.

Precision Shaped Grains

The secret behind the revolutionary performance of new 3M™ Cubitron™ II Gear Grinding Wheels lies in the proprietary mineral technology.

Turn the Concept of Gear Grinding Upside Down

3M™ Cubitron™ II Gear Grinding Wheels are available in two standard concentrations.

* If the root is not ground

99DA 93DA

Wheel Speed (Vc)Hardened Steel 30m/s

Wheel Speed (Vc)Hardened Steel 30m/s

Quenched and Tempered

35m/sQuenched and Tempered

35m/s

Feed Rate (Vw)Standard Machines 3,500 mm/min

Feed Rate (Vw)Standard Machines 3,500 mm/min

Höfler Rapid Series9,000–12,000 mm/min

Höfler Rapid Series9,000–12,000 mm/min

Material Removal Rate (Qw)

Hardened Steel24– 30 mm3/mm/sec Material

Removal Rate (Qw)

Hardened Steel24– 26 (30) mm3/mm/sec

Quenched and Tempered

20– 23 (30*) mm3/mm/sec

Quenched and Tempered

16– 20 (24) mm3/mm/sec

Chip Volume (V w)Roughing

4,000–6,000 mm3/min

Chip Volume (V w)Roughing

3,000– 5,000 mm3/min

Finishing300– 700 mm3/mm

Finishing300– 500 mm3/mm

• One wheel can grind and finish various gear materials, from soft to hardened steel.

• High material removal rates can eliminate hobbing the gears prior to hardening and grinding.

• Grinds at a high removal rate less machine power.

• Grinding chips are typically longer, making coolant filtration easier and potentially resulting in cleaner coolant, longer coolant life, reduces machine wear and gives better part quality.

Precision Shaped Grains

Free-cutting properties take the 3M™ Cubitron™ II Gear Grinding Wheel to the next level. With conventional abrasives, standard grinding consumes up to 10 times more energy as other metal removal processes such as turning or milling. However, the sharp cutting edges of the Cubitron II uses less energy than standard grinding while also diverting heat from the workpiece. Due to its free-cutting properties, the 3M™ Cubitron™ II Gear Grinding Wheel can be used differently from standard ceramic wheels, driving efficiency up and costs down.

Chip Volume

V w is given in mm3/mm (volume

removed per mm wheel width)

and refers to the volume removed

until redressing is initiated.

Dressing Roughing: Overlap ratio qd 1.0,

dress ratio 0.6 synchronous

Finishing: Overlap ratio

qd 4 to 6 (8), dress ratio

-0.6 to -0.8 asynchronous.

In general, dressing frequency

and total dressing amounts are

about half that of standard

ceramic wheels.

3M™ Cubitron™ II vs. Conventional

Cubitron™ II Conventional

Warranty, Limited Remedy, and Disclaimer: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance of a 3M product in a particular application. User is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user’s method of application. Unless an additional warranty is specifically stated on the applicable 3M product packaging or product literature, 3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price.

Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.

3M, Winterthur, Wendt and Slip Naxos are brands recognized and trusted worldwide for reliable quality and precision abrasive product used in industries that manufacture precision parts and components for automotive engines and transmissions, oil and gas drilling, cutting tools, aircraft and land based turbines and many others. Now, 3M offers you today’s most innovative portfolio of advanced abrasive technologies to help you achieve the next level of manufacturing precision and productivity. For more informationTo request additional product information or to arrange for sales assistance, visit www.3M.com/abrasives or www.winterthurtechnology.com

3M, Winterthur, Wendt, SlipNaxos and Cubitron are trademarks of 3M. Used under license in Canada.

Please recycle. Printed in U.S.A.© 3M 2012. All rights reserved. 61-5002-8326-4

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