When you're shopping within dimensional metrology machine inspection, the decision often comes down to whether you need a handheld measuring instrument or a repair component for a larger system. The two products here present exactly that choice. One is a digital caliper listed at $48.36. The other is a replacement motor for a Mitutoyo BHN506 coordinate measuring machine, listed at $1,998.00. Both carry the Mitutoyo name and come from Japan, but they serve different stages of the inspection workflow.
Quick verdict
Choose the caliper when you need a direct, portable reading tool for outside, inside, depth, and step measurements. Choose the motor when you're repairing a Mitutoyo BHN506 CMM and need its replacement motor. There's no universal winner-just the one that matches your current job.
Comparison at a glance
| Product | Price | Type | Condition | Best for |
|---|---|---|---|---|
| Mitutoyo 500-196-30 Digital Caliper | USD 48.36 | Digital caliper | New | Handheld measurements from 0 to 6 in |
| Yaskawa Minertia UGTMEM-06MMT51 | USD 1,998.00 | CMM replacement motor | Used | BHN506 coordinate measuring machine axis drive |
Where each product wins
The caliper wins on portability and immediate usability. It's a compact measuring tool that can be taken to the part, and it handles the four most common caliper measurements in one instrument.
The motor wins when your BHN506 CMM is down. This Yaskawa-built DC servo motor provides high torque and low inertia, which is what you need for rapid dynamic response and precise positioning during critical inspection routines.
Product notes
Mitutoyo 500-196-30 Digital Caliper
This is the straightforward pick for bench-level inspection. The hardened stainless steel body supports outside, inside, depth, and step measurements in one tool. The large LCD can show metric, imperial, or fractional readings, and the zero/ABS function lets you zero at any point or return to absolute readings. With a resolution of 0.0005 inches, it delivers clear readings for parts up to 6 inches. The limitation is the lack of SPC output: if your quality process demands data collection, this caliper won't feed that system directly. It's a standalone instrument for a person who needs to measure parts by hand.
Yaskawa Minertia UGTMEM-06MMT51 for Mitutoyo BHN506
This is a component for a specific coordinate measuring machine, not a measuring tool. The motor is built to deliver high torque and low inertia, which helps the CMM respond quickly while keeping travel smooth. It's the kind of part you buy when you're restoring a machine's axis drive rather than when you need to measure a dimension today. The limitation is its scope: this motor has one job, and it can't measure anything itself. It belongs in a BHN506 system, and the decision to use it depends on whether that system needs it.
Final choice by use case
If you're measuring parts by hand at a workbench or on the shop floor, the Mitutoyo caliper gives you a portable instrument with four-way measurement and dual-unit readouts. If you're repairing or maintaining a Mitutoyo BHN506 CMM, the Yaskawa Minertia motor is the component that can restore accurate travel. Match the product to the task: a caliper for direct measurement, a motor for machine repair.
