GBC-SCS06 Aluminum Clamp Type Shaft Collar – 6mm Bore
The GBC-SCS06 is an ultra-compact aluminum clamp-type shaft collar for 6 mm bore applications. OD 20 mm, width 10 mm, M4 clamping screw. Ideal for precision instruments, miniature robotics, and optical devices requiring reliable axial positioning without shaft surface damage.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Ultra-Compact 6mm Bore Shaft Collar for Precision Instrument Shafts
| Parameter | Value | Note |
|---|---|---|
| SKU / Model | GBC-SCS06 | GBC SCS Series |
| Bore Diameter (d) | 6 mm | Nominal; shaft tolerance h6 recommended |
| Outer Diameter (D) | 20 mm | |
| Face Width (B) | 10 mm | |
| Clamping Screw | M4 socket-head cap screw | Hex key driven |
| Slot Width (W) | 1.0 mm | Allows radial flex for clamping |
| Keyway Width (K) | Not available | Standard: no keyway; optional on request |
| Material | Aluminium alloy | Lightweight, corrosion-resistant |
| Surface | Natural / anodized on request | |
| MOQ | 100 pcs | Custom drawings accepted |
Product Overview
The GBC-SCS06 is an ultra-compact aluminum clamp-type shaft collar engineered for 6 mm bore applications where space constraints and weight budgets are non-negotiable. With an outer diameter of only 20 mm and a face width of 10 mm, this collar integrates seamlessly into miniature drive assemblies found in laboratory instruments, optics positioning stages, and micro-actuator systems. The split-clamp design, secured by a single M4 socket-head cap screw, applies uniform radial clamping pressure without deforming the shaft surface—critical when working with hardened stainless or precision-ground aluminium shafts where surface finish must be preserved.
Key Features
Zero Shaft Damage
The split-clamp mechanism distributes clamping force uniformly around the shaft circumference, eliminating the stress concentrations and surface gouging associated with set-screw designs. Shafts can be reused or repositioned without refurbishment.
Aluminium Alloy Construction
The aluminium alloy body provides an excellent strength-to-weight ratio, reducing rotational inertia in dynamic applications while offering natural corrosion resistance in dry industrial environments.
Dual Function: Axial Stop & Locator
Mount a single collar as an end-stop against a bearing or housing shoulder. Alternatively, sandwich a component between two collars to create an adjustable axial position that can be reconfigured without removing the shaft.
Single-Screw Rapid Installation
One M4 socket-head screw closes the collar gap, providing full clamping force in under 60 seconds. No tapping, no adhesive, no shaft modification required — ideal for field installation and iterative prototyping.
Typical Application Scenarios
Medical & Optical Instruments
Encoders, focus drives, and filter-wheel actuators rely on the SCS06 for sub-millimetre axial runout control under repeated positioning cycles.
Miniature Robotics
Joint linkages in desktop robotic arms and educational STEM platforms use the SCS06 as a lightweight axial stop, keeping overall limb mass below critical thresholds.
Semiconductor Handling
Wafer-transport micro-slides mount SCS06 collars on 6 mm ceramic guide rods to define precise end-of-travel limits without contaminating the clean-room environment.
Dimensional Guide
The dimensional drawing above illustrates the three principal measurements: d (bore diameter, 6 mm) defines the shaft fit; D (outer diameter, 20 mm) determines the radial space envelope and clamping surface area; B (face width, 10 mm) sets the axial footprint on the shaft. The slot of width W = 1.0 mm runs the full face width and allows the collar body to flex radially as the clamping screw is tightened. All dimensions follow ISO 286 fits — specify the mating shaft to h6 tolerance for optimal clamping performance.
Custom bore tolerances, OD reductions, alternative slot widths, and surface treatments (hard anodize, black anodize, electroless nickel) are available from GBC. Supply a detailed engineering drawing for quotation.
Model Selection Guide
If your shaft measures 8 mm, step up to the GBC-SCS08 which retains the same 10 mm face width at an enlarged 30 mm OD for improved clamping force.
| Model | Bore | Position |
|---|---|---|
| GBC-SCS06 | 6 mm | ◀ Current |
| GBC-SCS08 | 8mm | → Larger |
Installation Procedure
- Inspect the shaft: Verify the shaft diameter is within h6 tolerance (6.000 / 5.991 mm) and the surface is clean, degreased, and free of burrs or nicks.
- Position the collar: Slide the GBC-SCS06 onto the shaft to the required axial position. Use a depth gauge or reference stop block to ensure accurate placement before clamping.
- Tighten the clamping screw: Insert the 4 mm hex key and tighten progressively — two or three partial turns, checking position after each turn. Torque the M4 screw to 1.2–1.5 N·m using a 3 mm hex key. Over-torquing a 6 mm bore collar risks distorting the thin collar body.
- Verify retention: Apply the expected axial load manually and confirm zero movement. For dynamic applications, re-check torque after the first 50 operating cycles as collars may settle slightly during initial clamping.
Frequently Asked Questions
How do I prevent the SCS06 from micro-rotating on a smooth 6mm shaft?
Can the SCS06 be used on shafts rotating at 5,000 rpm?
Is a keyway available for the 6mm bore?
Related Products
Complete your shaft assembly with other components from the GBC range:
- GBC-SCS08 – 8mm bore aluminum clamp shaft collar — the next larger size for increased axial capacity
- Full GBC Shaft Collar Range — browse all bore sizes from 6 mm to 60 mm in the SCS series
Request a Quote or Technical Support
Minimum order quantity is 100 pcs. Custom bore tolerances, keyway options, surface treatments, and non-standard dimensions are available — supply your engineering drawing for a fast quotation from GBC.
The GBC-SCS06 is an ultra-compact aluminum clamp-type shaft collar for 6 mm bore applications. OD 20 mm, width 10 mm, M4 clamping screw. Ideal for precision instruments, miniature robotics, and optical devices requiring reliable axial positioning without shaft surface damage.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Related products
-
GBC-SCS12 Aluminum Clamp Type Shaft Collar – 12mm Bore
-
GBC-SCS50 Aluminum Clamp Type Shaft Collar – 50mm Bore
-
GBC-SCS20 Aluminum Clamp Type Shaft Collar – 20mm Bore
-
GBC-SCS35 Aluminum Clamp Type Shaft Collar – 35mm Bore
-
GBC-SCS25 Aluminum Clamp Type Shaft Collar – 25mm Bore
-
GBC-SCS15 Aluminum Clamp Type Shaft Collar – 15mm Bore