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Diamond Tool & Bore Sizing Systems
Rocker Arms

Rocker Arms

As an industry leader, Accu-Cut’s diamond technology has finished nearly 1 Billion rocker arms over the past 40 years.
Automotive Rocker
Automotive Rocker

Automotive Rocker

CPU = $0.003 per unit

Objective:

Improve engine performance by minimizing rocker arm friction.

Bore Diameter: 0.8867" / 22.52mm
Surface Finish: < 1.2 Rz
< 0.10mm Ra

Achievement:

Bore Size Control: > 2.0 Cpk
Surface Finish: < 0.53 Rz
< 0.06mm Ra
Cycle Time: < 12 seconds

Accu-Cut's diamond microcutting process improved surface finish by over 225%.

Diesel Rocker
Diesel Rocker

Diesel Rocker

CPU = $0.003 per unit

Objective:

Bore Diameter: 1.554" / 39.47mm
Surface Finish: 16 Ra / 0.4mm Ra
Cylindricity: 0.001" / 0.025mm

Achievement:

Bore Size Control: > 2.0 Cpk
Surface Finish: < 8 Ra / 0.2mm Ra
Cylindricity: < 0.0004" / 0.01mm
Cycle Time: < 9 seconds
Automotive Rocker
Automotive Rocker

Automotive Rocker

CPU = $0.002 per unit

Objective:

Bore Diameter: 0.5074" / 12.89mm
Surface Finish: 16 Ra / 0.4mm Ra
Roundness: < 0.0005" / 0.013mm

Achievement:

Bore Size Control: > 2.0 Cpk
Surface Finish: < 8 Ra / 0.2mm Ra
Roundness: < 0.0001" / 0.0025mm
Cycle Time: < 13 seconds
Automotive Rocker
Automotive Rocker

Automotive Rocker

CPU = $0.002 per unit

Objective:

Bore Diameter: 0.260" / 6.60mm
Surface Finish: 12 Ra / 0.3mm
Roundness: 0.0002" / 0.005mm

Achievement:

Bore Size Control: > 2.0 Cpk
Surface Finish: < 8 Ra / 0.2mm
Roundness: < 0.0001" / 0.0025mm
Cycle Time: < 12 seconds
Automotive Rocker
Automotive Rocker

Automotive Rocker

CPU = $0.002 per unit

Objective:

Bore Diameter: 0.312" / 7.92mm
Surface Finish: 32 Ra / 0.8mm Ra
Roundness: < 0.0006" / 0.015mm

Achievement:

Bore Size Control: > 2.0 Cpk
Surface Finish: < 16 Ra / 0.4mm Ra
Roundness: < 0.000050" / 0.0013mm
Cycle Time: < 10 seconds

Want to learn more about our Rocker Arms applications?

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