When your dimensional metrology machine inspection workflow starts to show positional drift, the reading head is often the first suspect. The Mitutoyo 908926 SRD Head is the component that reads the linear scale graduations on a Mitutoyo BHN506 CMM and converts axis movement into high-resolution electronic signals for the controller. For shops that depend on automated 3D dimensional inspection, a reliable replacement head is a decision that deserves close attention. This part is a genuine used option, and the key is understanding whether it matches your machine and your tolerance for used-condition risk.
Quick Verdict
This is a genuine Mitutoyo 908926 SRD Head (10/10) intended for the Mitutoyo BHN506 Coordinate Measuring CNC. It is a used part with a listed price of USD 399.00. If you already operate a BHN506 and need a direct replacement head, this is a reasonable candidate, especially if you can inspect and test the part before installation. It is not a new part, so verifying condition and fit is essential.
Who It Suits
Buyers who own or service a Mitutoyo BHN506 coordinate measuring machine are the primary audience. Because the SRD head is specific to this model, it does not make sense for anyone using a different CMM. It also suits technicians who are comfortable inspecting used precision components and confirming that the head reads properly once mounted. If you are in a metrology lab that relies on the BHN506 for high-accuracy inspection tasks, this genuine replacement part is aimed directly at you.
What Stands Out From the Listed Details
According to the product description, this SRD head is a genuine Mitutoyo part made in Japan. The description says it is a high-precision sensor reading head engineered for the Mitutoyo BHN506 Coordinate Measuring CNC. It reads linear scale graduations and translates physical axis movement into high-resolution electronic signals for the controller. The description stresses strict metrology tolerances, seamless data feedback, minimal signal degradation, and exceptional positioning repeatability-qualities that support automated 3D dimensional inspection workflows.
Meaningful Trade-Offs
The main trade-off is the used condition. While the product description says the head is designed for high precision, a used part carries inherent unknowns about its previous operating life. If you do not have the ability to mount the head on a BHN506 and verify its output, the used condition adds risk. Also, because compatibility is specific to the BHN506 model, confirm your machine matches this model before considering the part.
Product Note
Mitutoyo 908926 SRD Head 10/10 For Mitutoyo BHN506 Coordinate Measuring CNC
One concrete reason to choose this specific replacement is that it is described as a genuine Mitutoyo SRD Head tailored for the BHN506, with strict metrology tolerances and high-resolution signal conversion. A limitation is that the part is listed as used, so plan to verify its condition and functional output before relying on it for critical dimensional measurements.
Bottom Line
For a shop that already runs a Mitutoyo BHN506 coordinate measuring machine, this Mitutoyo 908926 SRD Head is a direct-fit replacement candidate at a listed price of USD 399.00. Its genuine Mitutoyo design and focus on precise signal conversion make it a sensible option to consider, provided you can inspect or test the used part. If you need a replacement head and can manage the used-condition risk, this part offers a specific path to getting your CMM back to full inspection capability.
