Custom Split Shaft Collars with Hex Profile by Hetai: Superior Clamping Force & Non-Slip Hexagonal Engagement

In high-torque power transmission systems, automated conveyors, and heavy-duty mechanical drives, standard round-bore shaft collars often slip under extreme torsional loads or cause shaft marring during maintenance. At Hetai, we specialize in manufacturing Custom Split Shaft Collars with Hex Profile (available in two-piece split or one-piece split designs), engineered to deliver exceptional holding power, positive non-rotational locking, and non-marring installation on hexagonal shafts.

Combining precision multi-axis CNC machining, wire EDM, and high-tensile socket hardware, Hetai transforms premium metal alloys and engineering plastics into custom hex-profile split collars built strictly to your CAD models and tolerance requirements.

What is a Split Shaft Collar with Hex Profile?

A hex-profile split shaft collar is a mechanical clamping collar featuring a hexagonal inner bore designed to match standard hex shafts or hex-machined spindles. Unlike solid set-screw collars that damage the shaft surface, the split design uses high-tensile clamping screws to apply uniform compression around the entire perimeter of the hex shaft.

This geometric profile and split structure deliver vital functional advantages:

1. Positive Anti-Rotation Lock: The hexagonal bore geometry provides a mechanical drive connection that completely eliminates rotational slippage, even under extreme reversing torque or shock loads.

2. Non-Marring Clamping Action: The clamping force is evenly distributed across all six flat faces of the hex shaft, preventing surface gouging, fretting, or permanent shaft damage.

3. Easy In-Situ Installation (Two-Piece Split): Two-piece split designs allow quick installation or removal directly onto an existing shaft without disassembling adjacent bearings, gears, or drive components.

4. Precise Axial Positioning & Stop: Serves as a heavy-duty axial stop, bearing retainer, or sensor mounting collar, maintaining tight positional accuracy under heavy axial thrust loads.

Technical Specifications & Customization Capabilities

At Hetai, customization extends across all geometric dimensions, bore sizes, hardware grades, and surface finishes:

Technical Advantages of Hetai Custom Hex-Profile Collars

• Corner-Relief Hex Geometry: Standard hex stock often has variations in corner radii. Hetai machines engineered corner-relief pockets inside the hex bore to ensure flush contact against the flat sides of the shaft, maximizing clamping surface area and grip strength.

• Balanced High-Clamping Force: Precise CNC thread tapping and balanced screw placement allow high tightening torque without distorting the collar body or stripping internal threads.

• Superior Axial Load Capacity: Machined directly from solid bar stock or forged blanks, Hetai split shaft collars offer significantly higher holding power against axial thrust compared to set-screw or single-split alternatives.

• Custom Mount & Accessory Features: We can integrate tapped mounting holes, keyways, outer flange faces, or sensor brackets directly onto the collar’s outer circumference to suit your application needs.

Primary Application Sectors

Hetai’s custom split shaft collars with hex profiles perform across diverse high-torque industrial environments:

• Agricultural & Heavy Machinery: Hex-shaft drive systems, harvester conveyers, auger drives, and implement linkage positioning.

• Industrial Automation & Conveyors: Packaging line hex-shaft rollers, indexing drive alignment, and power transmission linkages.

• Automotive & Commercial Vehicles: Steering column positioning, shift mechanism stops, and custom drive shaft collars.

• Food Processing & Pharmaceuticals: Cleanroom-compatible 316 stainless steel hex collars for mixing equipment, bottling lines, and food-grade conveyors.

• Robotics & Motion Control: High-repeatability drive joints, linear actuator positioning stops, and custom end-effector mounts.

Hetai Quality Assurance & Material Verification

Quality control is integrated into every stage of production at Hetai to guarantee 100% compliance with your engineering drawings:

1. 100% Material Traceability: Raw materials are verified via spectrographic chemical analysis and backed by Mill Test Certificates (MTC).

2. CMM & Plug Gauge Inspection: Precision hex plug gauges, optical profile projectors, and Coordinate Measuring Machines (CMM) verify hex bore dimensions, screw hole locations, and face perpendicularity.

3. Clamping & Torque Testing: Clamping screws and threads undergo torque retention testing to verify holding power and thread durability.

4. Surface Finish & Coating Integrity: Salt spray testing chambers (ASTM B117) and coating thickness gauges confirm long-term corrosion resistance.

Partner with Hetai for Your Custom Component Projects

Whether you require a low-volume prototype batch for new drive testing or high-volume production schedules with strict JIT delivery, Hetai delivers uncompromised quality, competitive factory-direct pricing, and expert engineering support.

Send us your 2D drawings (PDF) or 3D CAD models (STEP/IGES) today for a quick manufacturability review and competitive quote!