Product No.: 330171-00-28-10-01-05 - General Introduction
This product is a precision-engineered, two-piece clamping shaft collar designed for exceptionally secure and concentric locking on a shaft. The part number follows a modular system code. It differs from a standard one-piece collar by utilizing a split design where two halves are drawn together with cap screws, providing 360° uniform clamping force. This design minimizes shaft distortion and is ideal for high-torque, high-precision, and high-speed applications.
Detailed Parameters
| Parameter Category | Specification | Details / Notes |
|---|---|---|
| Bore Size (I.D.) | 28 mm | The "-28-" segment specifies the precise inner diameter for mounting on a 28mm shaft. Tolerance is tight (e.g., H7) for initial alignment. |
| Outer Diameter (O.D.) | Approx. 38 - 42 mm | The "-10-" likely indicates a standard series size. Typical O.D. provides sufficient material for screw threads and strength. |
| Width / Thickness | Approx. 10 - 14 mm | Standard proportional width for a collar of this diameter, providing a broad clamping surface. |
| Clamping Design | Two-Piece, Split Clamp | The body is split along the horizontal axis. Two halves are joined with socket head cap screws, creating uniform radial compression. |
| Clamping Screws | Socket Head Cap Screws (e.g., M4 or M5) | Typically two screws are used, tightened to a specified torque to generate the clamping force. The "-01-" may specify screw type. |
| Material | Black-Oxide Alloy Steel (e.g., 4140) or Stainless Steel (303/304) | Most common for high-strength, wear-resistant applications. Aluminum is less common for this size due to lower clamping force. |
| Finish | Black Oxide (for steel) or Passivated (for stainless). | Black oxide provides corrosion resistance, reduces galling, and has a non-reflective finish. |
| Weight | Approx. 40 - 80 grams | Weight varies based on exact dimensions and material density (steel vs. stainless). |
| Key Feature | True 360° Concentric Clamping | Eliminates the radial runout and localized distortion caused by set screws in one-piece collars. Provides the highest level of holding power and positional repeatability. |
| Max. Clamping Force / Holding Torque | Very High | Significantly exceeds the holding torque of a comparable set-screw collar. Suitable for direct torque transmission. |
| Runout / Concentricity | < 0.01 mm TIR (when properly installed) | The split design, when precision-machined, ensures exceptional concentricity, critical for high-speed balance. |
| Additional Feature | May include an anti-rotation feature (e.g., a flat or keyway on the bore) as indicated by "-05" suffix. | Prevents the collar from rotating on the shaft under extreme vibratory loads. |
Primary Application Scenarios
This component is used in high-performance mechanical systems where slippage, runout, or shaft damage from set screws is unacceptable.
High-Speed Spindles & Precision Rotating Assemblies:
Tool Holder & Bearing Spacing: Used to axially locate and secure bearings, tool holder assemblies, or encoder rings on the shaft of CNC milling spindles, grinding spindles, and high-speed motors. The 360° clamp prevents imbalance at high RPM.
Power Transmission on Keyless Shafts:
Gear, Coupling, and Pulley Retention: Serves as the primary locking device for mounting gears, timing pulleys, and flexible couplings on smooth (keyless) shafts in servo drives and precision gearboxes. Transmits torque purely through friction.
Motion Control & Linear Actuators:
Ball Screw & Lead Screw Support: Used as a rigid stop and anti-rotation device for supporting bearings on ball screws and lead screws in high-accuracy linear stages and actuators.
Rolling Mill & Heavy-Duty Conveyor Drives:
Sprocket and Roller Positioning: Secures large sprockets, chain wheels, or rollers to shafts in material handling and processing equipment, withstanding high shock loads and reversing torques.
Aerospace & Defense Actuation Systems:
Linkage and Control Surface Pivot Points: Provides a secure, lightweight, and reliable method for locking levers and linkages to pivot shafts in flight control and other mechanical actuation systems.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
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