GBC-SCS22 Aluminum Clamp Type Shaft Collar – 22mm Bore
The GBC-SCS22 aluminum clamp-type shaft collar fits 22 mm bore shafts. OD 45 mm, face width 12 mm, M5 screw, optional 6 mm keyway. Designed for CNC machine tool auxiliary chain drives, hydraulic cylinder guide rod end-stops, and cam-disc axial positioning in automated assembly machinery.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
22mm Bore Aluminum Clamp Shaft Collar – Compact Heavy-Duty Design for Machine Tool Auxiliary Shafts
| Parameter | Value | Note |
|---|---|---|
| SKU / Model | GBC-SCS22 | GBC SCS Series |
| Bore Diameter (d) | 22 mm | Nominal; shaft h6 tolerance recommended |
| Outer Diameter (D) | 45 mm | |
| Face Width (B) | 12 mm | Extended width for higher axial bearing area |
| Clamping Screw | M5 socket-head cap screw | 5 mm hex key required |
| Slot Width (W) | 1.5 mm | Radial flex gap for clamping action |
| Keyway Width (K) | 6 mm | DIN 6885 Form A; plain bore is default |
| Shaft Fit (ISO h6) | 22.000 / 21.987 mm | Sliding fit before clamping |
| Material | Aluminium alloy | Hard-anodize & electroless nickel available |
| MOQ | 100 pcs | Custom engineering drawings accepted |
Product Overview
The GBC-SCS22 steps into the medium-heavy bracket of the SCS series, pairing a 22 mm bore with a 45 mm OD and 12 mm face width. Despite retaining the M5 clamping screw, the enlarged OD relative to bore delivers a wall section thick enough to accommodate the 6 mm keyway without compromising radial stiffness — a critical balance when the collar must simultaneously locate a sprocket axially and prevent its rotation under the shock loads common in chain-driven machine-tool auxiliary drives. The 45 mm OD also fits comfortably within the pillow-block housings designed for 22 mm shaft series bearings, making the SCS22 a direct drop-in collar for bearing end-location duties without housing modification. At 22 mm, this collar covers the output shaft diameter of many compact helical inline gearboxes, hydraulic cylinder guide rods in light-duty presses, and the support journals of camshafts in specialised automated assembly machines.
Key Features
Zero Shaft Surface Damage
The split-clamp design wraps clamping force uniformly around the shaft circumference, eliminating the localised indentation and fretting fatigue caused by set-screw contact. This is particularly valuable on ground or hard-chrome shaft surfaces where any surface damage accelerates seal and bearing wear adjacent to the collar.
M5 High-Capacity Clamping
The M5 socket-head cap screw is the correct choice for bore diameters in the 22 mm range, delivering clamping torque capacity and proof load matched to the wall section and surface area of the 45 mm OD collar body for reliable retention under the heavy-duty axial loads at this shaft size.
12 mm Extended Face Width
The 12 mm face width provides a wider axial contact band on the shaft than smaller SCS collars. This distributes the axial reaction force over a greater shaft surface area, reducing contact pressure and enabling the collar to hold higher sustained axial loads without risk of bore deformation under long-term service.
Field-Adjustable Axial Positioning
Collar position can be changed during commissioning or maintenance using only a 5 mm hex key — no shaft removal, no bearing housing disassembly, no machining. This makes SCS collars significantly faster to reconfigure than machined shaft steps or welded thrust collars.
6 mm DIN Keyway — Torque Locking Option
The 6 mm keyway follows DIN 6885 Form A for 22 mm bore, enabling simultaneous axial location and rotational torque transmission. Default supply is plain bore — specify keyway at time of order.
Typical Application Scenarios
Machine Tool Auxiliary Chain Drives
Index table drives, tool magazine carousels, and chip conveyor drives in CNC machining centres commonly route power through 22 mm counter-shafts. The SCS22 positions sprockets and retains them against the axial thrust generated by chain wrap-around engagement, preventing the sprocket lateral migration that misaligns the chain and accelerates link wear.
Hydraulic Cylinder Guide Rod End-Stops
Light-duty hydraulic press guide rods of 22 mm diameter use the SCS22 as an adjustable mechanical travel limiter, clamped at the required stroke endpoint and providing a positive stop that supplements the hydraulic pressure relief valve as a redundant over-travel protection device.
Automated Assembly Machine Camshafts
Rotary indexing cam drives in PCB component-insertion machines and blister-pack assembly stations use 22 mm camshafts where the SCS22 locates cam-disc axial positions relative to follower tracks, maintaining alignment tolerances through the thermal expansion cycles of extended production runs.
Dimensional Guide & Shaft Fit Specification
The GBC-SCS22 is defined by bore d = 22 mm, outer diameter D = 45 mm, and face width B = 12 mm. The slot width W = 1.5 mm runs the full face width, providing the radial flex gap that closes as the M5 screw is tightened. Specify the mating shaft to ISO 286 h6 (22.000 / 21.987 mm) for a sliding pre-installation fit and maximum post-clamping retention. Tighter shaft tolerances such as g6 will reduce retention force; looser tolerances such as h8 should be avoided for duty cycles involving sustained axial loads.
GBC accepts custom specifications including extended face widths up to 25 mm, reduced OD profiles for confined housing installations, twin-screw clamping configurations for maximum holding force, and specialised surface treatments for corrosive or food-contact environments. Submit your engineering drawing via the GBC contact page for a fast quotation.
Model Selection Guide
For 20 mm motor and ball-screw shafts, the GBC-SCS20 at 40 mm OD is the predecessor. Stepping up to the international standard 25 mm bore — used across the broadest range of gearboxes, couplings, and bearing housings — the GBC-SCS25 shares the 45 mm OD with an expanded 8 mm keyway.
| Model | Bore | Relation |
|---|---|---|
| GBC-SCS20 | 20mm | ← Smaller |
| GBC-SCS22 | 22 mm | ◀ Current |
| GBC-SCS25 | 25mm | → Larger |
Installation Procedure
- Shaft preparation: Measure the shaft diameter with a calibrated micrometer to confirm it falls within h6 tolerance (22.000 / 21.987 mm). Degrease the clamping zone and remove burrs with a flat file.
- Collar placement: Slide the GBC-SCS22 onto the shaft to the required axial position. For heavy assemblies, use a mallet and a soft brass drift to move the collar if shaft features resist free sliding.
- Progressive clamping: Insert a full-length 5 mm hex key and tighten in three incremental steps — 30%, 60%, then full torque — checking position after each step. Torque M5 screw to 4.5 N·m using a full-length 4 mm hex key. For chain-drive applications, verify collar position with a straight-edge against the adjacent sprocket face before final tightening to confirm zero lateral misalignment.
- Operational verification: After initial operation under load, re-check screw torque. For high-vibration environments, apply medium-strength threadlocker before final tightening and mark the screw head for visual drift detection during inspections.
Frequently Asked Questions
How does the SCS22 compare to SCS20 in axial holding force?
Can the SCS22 be used as a bearing end-location collar inside a standard 22mm pillow block?
Is the 6mm keyway in SCS22 compatible with standard DIN keys for 22mm shafts?
Related Products
Browse adjacent sizes and related drive components in the GBC SCS series:
- GBC-SCS20 – 20mm bore aluminum clamp shaft collar — smaller bore for lower shaft diameter requirements
- GBC-SCS25 – 25mm bore aluminum clamp shaft collar — next larger size with higher axial load capacity
- Full GBC SCS Shaft Collar Range — bore sizes 6 mm to 60 mm, all available with custom specifications
Request a Quote or Submit a Custom Drawing
Minimum order quantity is 100 pcs. GBC supplies custom bore tolerances, keyway options, extended face widths, twin-screw configurations, and corrosion-resistant surface treatments. Provide your engineering drawing for an accurate quotation.
The GBC-SCS22 aluminum clamp-type shaft collar fits 22 mm bore shafts. OD 45 mm, face width 12 mm, M5 screw, optional 6 mm keyway. Designed for CNC machine tool auxiliary chain drives, hydraulic cylinder guide rod end-stops, and cam-disc axial positioning in automated assembly machinery.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Related products
-
GBC-SCS35 Aluminum Clamp Type Shaft Collar – 35mm Bore
-
GBC-SCS18 Aluminum Clamp Type Shaft Collar – 18mm Bore
-
GBC-SCS60 Aluminum Clamp Type Shaft Collar – 60mm Bore
-
GBC-SCS16 Aluminum Clamp Type Shaft Collar – 16mm Bore
-
GBC-SCS30 Aluminum Clamp Type Shaft Collar – 30mm Bore
-
GBC-SCS06 Aluminum Clamp Type Shaft Collar – 6mm Bore