GCT Coaxial Filter Holders and Wheels

This family covers three online models: the GCT-140101 insert-style holder and the GCT-140202 and GCT-140201 coaxial filter wheels. Dedicated source photographs establish the mechanism differences; the shared heading is not used to classify every model as the same wheel. The two wheel models carry Ø25.4 and Ø12.7 labels respectively, without units or measurement-location definitions. These labels remain as shown rather than becoming unverified millimeter filter specifications. Check filter thickness, retention, clear aperture, mounting holes and operating clearance before selection. The source does not define indexing performance or drive specifications. English artwork illustrates a wheel configuration, while the insert model must be checked against its own source photograph. Filters and accessories are not automatically included.

Insert holder and wheel configurations

GCT-140101 photographs show a square housing and a separate insert with a top knurled screw and circular opening. GCT-140202 and GCT-140201 are explicitly described as coaxial filter wheels and show wheel openings behind a front mounting plate. These are different mechanisms, not simply one wheel with three size choices. The shared promotional heading is not used to erase that distinction.

Model-specific diameter labels

The GCT-140202 dedicated image carries Ø25.4, while GCT-140201 carries Ø12.7. Neither image provides a unit note or dimension line. These labels are not automatically rewritten as millimeters, clear aperture, filter outside diameter or mounting-hole size. GCT-140101 has no explicit diameter label, and dimensions from the wheel models are not transferred to it.

Optic and mounting checks

Openings have a visible thread-like structure, but no SM standard, thread diameter or pitch is specified. Mounting-plate hole dimensions are absent, so cage spacing, hole pitch and fasteners are not inferred. Check filter edges and thickness, retention and ring requirements, clear aperture, insertion or rotation clearance and the optical-axis reference.

Performance and supplied items

The source gives no specified station count, indexing method, repeatability, rotation range or motor-drive information. Visible openings are not converted into a complete functional guarantee. Filter transmission, wavelength range, material and finish specifications are absent. Customization text defines no range or delivery commitment. Confirm filters, rings, accessories and the actual supplied assembly quantities.

Selection checklist

Choose insert or wheel configuration

Confirm diameter-label units and filter dimensions

Check thickness, retention and mounting holes

Confirm stations, indexing and supplied items

To be confirmed

Diameter units, measurement location and clear aperture

Filter thickness, thread standard, hole spacing and overall dimensions

Station count, indexing, drive and repeatability

Material, finish, filters, rings, accessories and delivery