GCM-1131M Rotation Head

GCM-1131M is explicitly identified as a rotating head in the source, and this family contains one online SKU. Both original images carry a Ø28 label but provide no unit, dimension line or measurement location. The documentation retains that label without converting it into an unverified millimeter specification. Photographs show a black cylindrical body, top threaded stud and nut, silver side cylinder and knurled screws. These visible features do not establish material, thread specifications or individual component functions. Obtain complete mounting and motion specifications before selection, including rotation axis, adjustment and locking methods, load and operating clearance. English artwork is an appearance reference. Performance and supplied items that the source does not specify remain subject to confirmation.

Model and diameter label

Both source images identify GCM-1131M as a rotating head and display a Ø28 label. Neither supplies a unit, dimension line or identified measurement location. The label is retained as Ø28 rather than rewritten as a 28 mm overall diameter, platform diameter or shaft diameter. Both the source and online family have one SKU.

Visible structure

Photographs show a black cylindrical body, round top, central threaded stud with a nut, a silver side cylinder and knurled screws. These are visual descriptions, not confirmation of material, mounting interfaces or the adjustment and locking function of each screw. The source provides no dimensional engineering drawing or detailed written description.

Installation and operation

Obtain the complete top-stud thread, base mounting arrangement, purpose of the side cylinder and dimensioned interface information before selecting the head. Confirm the rotation axis, angular range, coarse or fine adjustment method, locking method and tool clearance. The product name alone does not establish 360° rotation or any accuracy rating.

Customization and supplied items

The dedicated image offers customization for special dimensions but identifies no verified additional model, customization range or delivery commitment. Confirm material, finish, load, angular resolution, backlash, repeatability, accessory quantities and the actual supply scope. English artwork provides an appearance reference and does not replace specification confirmation.

Selection checklist

Obtain dimensioned drawings with units

Confirm top and base mounting interfaces

Check rotation axis, range and locking method

Confirm load, accuracy, material and supplied items

To be confirmed

Ø28 unit and measurement location, overall dimensions

Top thread, base interface and side-cylinder function

Angular range, resolution, load, backlash and repeatability

Material, finish, accessories and customization delivery