• Can be used for making root tangent measurements on spur gears and helical gears.
• Non-rotating spindle eliminates torque on workpiece.
• Measurable range of gear pitch: 0.5 to 6 module (series 227: 0.4 to 3 module).
• Equipped with Ratchet Stop for constant measuring force.
SPECIFICATIONS
Metric
| Order No. | Range (mm) |
Resolution (mm) |
Anvil dia. (mm) |
Maximum permissible error J MPE (µm) |
Flatness (µm) |
Parallelism (µm) |
Measuring force (N) |
| Quickmike type adjustable measuring force | |||||||
| 227-221-20 | 0 - 15 | 0.001 | ø14.3 | ±4 | 1 | 3 | 0.5 - 2.5 |
| 227-223-20 | 0 - 10 | 2 - 10 | |||||
• Power source: SR44 battery (1 pc.), 938882 included as standard (for operational checks)
• Battery life: Approx. 5 years under normal use
• Position detection method: Electrostatic capacity absolute sensor
• Standard accessories: Setting standard, 1 pc. (except for measuring range 0 to 10 mm/0 to 15 mm/0 to 30 mm
(0 to 1/0 to 1.2 in) models), Screwdriver (210183), 1 pc.
Note: Root tangent length measurement is not available for some types of gears.
| แบรนด์สินค้า | MITUTOYO |
|---|---|
| Digital/Analog | Digital |

| Range (mm) | L | a | b | c |
| Quickmike type | ||||
| 0 - 30 | 0 | 8.5 | 36 | 13.5 |
| 25 - 55 | 25 | 10.3 | 47 | 13.5 |
| Quickmike adjustable measuring force type | ||||
| 0 - 15 | 0 | 6.2 | 25 | 5.2 |
| 0 - 10 | 0 | 6.2 | 25 | 5.2 |