Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When shaft misalignment causes vibration, noise, or premature wear in your CNC router, 3D printer, or motor-driven machine, the weak link is almost always the coupling. Engineers and DIY builders who demand smooth, reliable torque transmission need a coupling that absorbs angular and parallel misalignment without sacrificing rigidity. The D35L60 CNC Shaft Coupler is designed for exactly that — delivering consistent performance across a wide range of shaft diameter combinations.
This jaw-type spider coupling features an aluminum alloy body (outer diameter 35mm / ~1.38 in, length 60mm / ~2.36 in) with a polyurethane spider insert that cushions shock loads and dampens vibration. Bore sizes span 6mm to 19mm (~0.24–0.75 in) on both sides, covering same-diameter and stepped-shaft configurations. The set-screw clamping design locks onto flat or round shafts securely without requiring keyways.
Typical use cases include stepper motor to lead screw connections on CNC milling machines, servo motor coupling on laser engravers, and flexible shaft linkage on 3D printer Z-axis assemblies — anywhere a rigid coupling would transmit shock directly to bearings or motor shafts.
| Outer Diameter | 35mm (~1.38 in) |
|---|---|
| Length | 60mm (~2.36 in) |
| Bore Diameter Range | 6mm – 19mm (both sides; see variant options) |
| Body Material | Aluminum Alloy |
| Spider / Insert Material | Polyurethane (PU) |
| Coupling Type | Jaw / Spider (Plum) Flexible Coupling |
| Clamping Method | Set Screw |
| Shaft Configuration | Same-diameter and stepped-shaft variants available |
| Finish | Natural anodized aluminum |
| Weight (per unit) | See variant options |
| Quantity per Order | 1 Pcs |
Measure the shaft diameter on your motor output and the shaft diameter on your lead screw or driven component. Select the variant that matches both values — for example, if your stepper motor has a 6.35mm shaft and your lead screw has an 8mm shaft, choose the "6.35mm × 8mm" option. Same-diameter variants (e.g., 8mm × 8mm) are available for identical shaft pairings.
Yes. The polyurethane spider insert allows the coupling to flex slightly, accommodating angular misalignment typically up to approximately 1° and small amounts of parallel offset. For best results, align shafts as closely as possible during installation — the spider element is designed to compensate for minor residual misalignment, not replace proper alignment.
The aluminum alloy hubs are well-suited for the torque levels produced by NEMA 17 and NEMA 23 stepper motors in typical CNC router and 3D printer applications. For very high-torque servo systems or heavy industrial use, verify the torque rating against your motor's output specifications before ordering.
Yes, the set screws can grip a round shaft directly. For more secure holding — especially under reversing loads or high-speed operation — it is recommended to file a small flat on the shaft at the set-screw contact point. This prevents the shaft from rotating inside the hub under load.
The aluminum alloy body has natural corrosion resistance suitable for indoor workshop and enclosed machine environments. The polyurethane spider insert is also resistant to oils and mild chemicals. For outdoor or high-humidity environments, consider applying a light protective coating to the aluminum hubs.
A rigid coupler transmits all motion directly with zero flex — ideal when shafts are perfectly aligned, but it transfers any vibration or shock directly to bearings and motor shafts. A jaw (plum) coupler like this D35L60 uses a flexible spider insert to absorb vibration and minor misalignment, which extends bearing life and reduces noise in CNC and 3D printer applications where perfect alignment is difficult to achieve.
Each unit includes both aluminum hubs and the polyurethane spider insert assembled as a complete coupling ready for installation. No additional parts are required.
