Replacement 4" Bayonet Ring and Manual X-Y Stage: Spare Parts FAQ
By Zygo | Published: 2026-11-02
Category: Product Reviews
Straight answers on the replacement 4-inch bayonet ring, the 100 mm manual X-Y stage, and the 12 VDC power supply spare for Zygo systems.
Quick answer
Match each spare to its exact Zygo model and assembly code before ordering: the 4" bayonet ring (6500-1041-01) fits compatible bayonet mounts, the 100 mm manual X-Y stage (6301-0290-01) is built for the ZeGage, and the 12 VDC power supply (1600-000-217) is used in assembly 6450-0501-02.
Why model and assembly codes decide fit
Zygo spare parts are tied to specific hardware families and, in some cases, to a parent assembly. The 12 VDC power supply, for example, is listed for use in assembly 6450-0501-02, so the assembly code on your unit is the first thing to check. The manual X-Y stage is listed as compatible with the ZeGage. The bayonet ring is a machined 4-inch component for compatible bayonet setups. None of these listings promise universal fit, and the catalog does not supply dimensions beyond what is stated, so confirm against your current part or manual before ordering.
When a spare is the right call, and when it isn't
A spare part makes sense when the existing component is worn, damaged, or missing and the rest of the system is otherwise serviceable. If the problem is alignment, calibration, or a fault elsewhere in the optical path, replacing a ring, stage, or power supply may not address the cause. The catalog pages list only the facts above, so use them as a fit check, not as a diagnosis.
Spare parts FAQ
- How do I confirm the 4" bayonet ring fits my setup?
- Compare your current ring's part number or the equipment documentation with SKU 6500-1041-01. The catalog describes it as a 4-inch machined bayonet ring for compatible setups, but it does not list a universal fit, so if your mount is not a 4-inch bayonet type, do not order it.
- Is the 100 mm manual X-Y stage a direct replacement for my ZeGage stage?
- The stage is listed as compatible with the ZeGage and has a 100 mm x 100 mm travel footprint. Confirm your current stage's model and mounting before swapping; the catalog does not provide bolt patterns or height, so check those against your hardware. If you are unsure of the mounting, ask Zygo support with your ZeGage serial number before ordering.
- Which systems use the 12 VDC power supply spare?
- It is intended for use with assembly 6450-0501-02. Find that assembly code on your system label or documentation. If your unit shows a different assembly code, this supply is not the listed match.
- Can I order these parts without a model number?
- No. Each listing is tied to a SKU and, for the power supply, an assembly code. Ordering by SKU alone without confirming the parent equipment risks a part that does not fit. Use the model and assembly information from your system before checkout.
- What should I check first if a spare doesn't solve the problem?
- Re-check alignment, cabling, and the fault symptoms against the system manual. The catalog does not provide troubleshooting guidance, so if the issue persists after fitting a correct spare, contact Zygo service rather than ordering another part.
Product facts at a glance
- Replacement 4" Bayonet Ring: Replacement 4" Bayonet Ring, SKU 6500-1041-01, is a machined hardware component for compatible bayonet equipment setups. Order by SKU to replace a worn or damaged 4-inch ring without guessing at the part number.
Replacement 4" Bayonet Ring - 100 mm x 100 mm ,Manual X-Y Stage: The Manual X-Y Stage has a 100 mm x 100 mm travel footprint and is listed as compatible with the ZeGage, SKU 6301-0290-01. The stated travel and compatibility let you confirm it matches your ZeGage setup before purchase.
100 mm x 100 mm ,Manual X-Y Stage - 12 VDC Power Supply: The 12 VDC Power Supply, SKU 1600-000-217, is listed for use in assembly 6450-0501-02. Check that assembly code on your system to avoid ordering a supply for the wrong build.
