Rocker Arms
As an industry leader, Accu-Cut’s diamond technology has finished nearly 1 Billion rocker arms over the past 40 years.
Fill out the form below and the team at Accu-Cut will get back to you within 24-48 hours.


Improve engine performance by minimizing rocker arm friction.
| Bore Diameter: | 0.8867" / 22.52mm |
| Surface Finish: | < 1.2 Rz < 0.10mm Ra |
| 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%.


| Bore Diameter: | 1.554" / 39.47mm |
| Surface Finish: | 16 Ra / 0.4mm Ra |
| Cylindricity: | 0.001" / 0.025mm |
| Bore Size Control: | > 2.0 Cpk |
| Surface Finish: | < 8 Ra / 0.2mm Ra |
| Cylindricity: | < 0.0004" / 0.01mm |
| Cycle Time: | < 9 seconds |


| Bore Diameter: | 0.5074" / 12.89mm |
| Surface Finish: | 16 Ra / 0.4mm Ra |
| Roundness: | < 0.0005" / 0.013mm |
| Bore Size Control: | > 2.0 Cpk |
| Surface Finish: | < 8 Ra / 0.2mm Ra |
| Roundness: | < 0.0001" / 0.0025mm |
| Cycle Time: | < 13 seconds |


| Bore Diameter: | 0.260" / 6.60mm |
| Surface Finish: | 12 Ra / 0.3mm |
| Roundness: | 0.0002" / 0.005mm |
| Bore Size Control: | > 2.0 Cpk |
| Surface Finish: | < 8 Ra / 0.2mm |
| Roundness: | < 0.0001" / 0.0025mm |
| Cycle Time: | < 12 seconds |


| Bore Diameter: | 0.312" / 7.92mm |
| Surface Finish: | 32 Ra / 0.8mm Ra |
| Roundness: | < 0.0006" / 0.015mm |
| Bore Size Control: | > 2.0 Cpk |
| Surface Finish: | < 16 Ra / 0.4mm Ra |
| Roundness: | < 0.000050" / 0.0013mm |
| Cycle Time: | < 10 seconds |
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Fill out the form below and the team at Accu-Cut will get back to you within 24-48 hours.