compact linear axes and fixture positioning
EP-SCS12 is a single-split aluminum shaft clamp with a 12 mm nominal bore, 30 mm outside diameter, 10 mm width and M4 clamp screw. It is intended for axial positioning and stop duties on round shafts where a clamp-style collar gives the installer a removable, repositionable mechanical reference.
Where EP-SCS12 Fits Best
A 12 mm shaft is common in compact mechanical layouts, making this model a useful reference point for linear fixtures and small automation. The body remains 10 mm wide, which can help where axial space is tight, while the 30 mm outside diameter still needs radial clearance.
EP-SCS12 sits in the compact end of the EP-SCS range, where bore accuracy and nearby component clearance usually matter more than overall mass. It is well suited to evaluation for guide rods, small fixtures, sensors, light linear mechanisms and benchtop automation where a removable stop or axial reference is needed.
Model Dimensions
| Model | Bore d | OD D | Width B | Screw M | Split W | Keyway K |
|---|---|---|---|---|---|---|
| EP-SCS12 | 12 mm | 30 mm | 10 mm | M4 | 1.5 mm | 4 mm |
Selection starts with the measured shaft diameter, then moves to the surrounding envelope. Confirm the 30 mm outside diameter, 10 mm axial width and access to the M4 screw against the real assembly before treating EP-SCS12 as a replacement or new-build fit.
Interface Review
For a machine retrofit, compare the existing collar screw-access direction with the proposed split orientation. A model can match all nominal dimensions yet still be awkward to service if the screw faces a frame or cover.
The EP-SCS chart lists K = 4 mm for the keyed option on EP-SCS12, while the standard collar is supplied without a keyway. A keyed request should include the mating key and shaft details because the K value is only one dimension of the complete interface.
Typical Positioning Roles
EP-SCS12 can serve as a removable stop on a 12 mm guide shaft, an axial reference beside another shaft-mounted component, or one side of a paired locating arrangement. Its 10 mm body width and 30 mm outside diameter must fit the surrounding mechanism; bearings, couplings, keys and other functional components should continue to perform the duties assigned to them by the machine design.
If EP-SCS12 is intended to act as a hard stop rather than a setup reference, describe the contact event in the enquiry. Repeated impact on a 12 mm shaft creates a different selection question from occasional positioning, even though the listed collar dimensions are unchanged.
Installation and Service Considerations
If two collars are used around another part, define the desired axial float or clearance before tightening. The pair can create an adjustable position window, but the functional clearance belongs to the machine design rather than the collar specification.
For compact EP-SCS12 installations, check the full motion path around the 30 mm OD body before fixing the stop position. Leave a practical tool path to the M4 screw and confirm that the 10 mm axial width does not crowd an end plate, sensor bracket or moving carriage.
The EP-SCS12 body is tightened through its M4 clamp screw and the listed split W is 1.5 mm. Install it on a clean 12 mm shaft, seat the collar squarely, keep the screw accessible, and verify the axial position again after tightening before the mechanism returns to service.
Configuration Details to Confirm
The size chart defines the core geometry for EP-SCS12. If the application depends on a specific tightening torque, axial holding requirement, aluminum grade, surface treatment or compliance document, state that requirement in the RFQ so it can be confirmed for the ordered configuration rather than assumed from bore size alone.
When EP-SCS12 is being considered as a replacement, record the actual shaft diameter together with the old collar outside diameter, width and screw orientation. Also note nearby shoulders, bearing hardware and visible shaft condition so the 30 mm × 10 mm envelope can be checked against the installation rather than inferred from the machine name.
Nearest EP-SCS Bore Options
EP-SCS12 is centered on a 12 mm shaft interface. Nearby catalogue entries such as EP-SCS13 and EP-SCS10 are useful for comparing the range, but they should not be used to compensate for an uncertain shaft measurement. Verify the shaft first, then treat the 30 mm OD and 10 mm width as separate envelope checks.
RFQ Focus for EP-SCS12
Provide the shaft diameter, required axial location and whether K = 4 mm is relevant to the design. A drawing is especially useful when the collar sits between a carriage and an end support.
For EP-SCS12, identify whether the collar will be a fixed stop, adjustable setup reference, paired locator or keyed interface. Include that role with the 12 mm shaft dimension, quantity and any restricted 30 mm OD / 10 mm width envelope so the quotation addresses the real assembly.