{"id":3466,"date":"2026-07-08T05:13:51","date_gmt":"2026-07-08T05:13:51","guid":{"rendered":"https:\/\/rigid-shaft-coupling.top\/product\/ts7-16-setscrew-type-rigid-coupling-aluminum-alloy-miniature-shaft-connector\/"},"modified":"2026-07-08T05:13:52","modified_gmt":"2026-07-08T05:13:52","slug":"ts7-16-setscrew-type-rigid-coupling-aluminum-alloy-miniature-shaft-connector","status":"publish","type":"product","link":"https:\/\/rigid-shaft-coupling.top\/fr\/product\/ts7-16-setscrew-type-rigid-coupling-aluminum-alloy-miniature-shaft-connector\/","title":{"rendered":"TS7-16 Setscrew Type Rigid Coupling \u2013 Aluminum Alloy Miniature Shaft Connector"},"content":{"rendered":"
\n

TS7-16 Setscrew Type Rigid Coupling \u2013 Aluminum Alloy Miniature Precision Shaft Connector<\/h1>\n

The TS7-16 setscrew type rigid coupling<\/strong> is a miniature, lightweight shaft connector designed for precision motion control applications where zero backlash, ultra-low rotational inertia, and consistent torque transmission are non-negotiable requirements. With a 16 mm outer diameter body machined from high-strength aluminum alloy, this coupling connects two shafts of equal or differing diameters in a perfectly rigid assembly, ensuring that angular position on the driving shaft is replicated with absolute fidelity on the driven side. It is the coupling of choice for servo motor to leadscrew connections, encoder mounting shafts, rotary stage drives, and any precision automation axis where position accuracy is paramount.<\/p>\n

The setscrew fastening mechanism uses two M3 grub screws per hub \u2014 one per shaft side \u2014 tightened to a specified wrench torque to lock the coupling body onto each shaft end. This arrangement provides a secure, repeatable connection without requiring a split-clamp body, keeping the outer diameter compact and the moment of inertia at an absolute minimum. The rotational inertia of the TS7-16 is just 3.1 \u00d7 10\u207b\u2077 kg\u00b7m\u00b2, making it one of the lowest-inertia rigid couplings available in the 16 mm OD class. For drive systems where servo amplifier inertia ratio calculations are critical, this figure directly reduces the reflected inertia seen at the motor shaft.<\/p>\n

Shaft bores of 3, 4, 5, and 6 mm are available within the TS7-16 frame size, covering the full range of miniature servo motor output shafts and instrumentation shaft diameters common in this torque class. For applications requiring corrosion resistance \u2014 food processing equipment, laboratory instruments, coastal or marine environments \u2014 the equivalent stainless steel model STS7-16<\/strong> provides identical geometry and torque ratings in 316 stainless steel construction. Both variants are described on our full product catalog page<\/a>.<\/p>\n

Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nTS7-16<\/td>\n<\/tr>\n
Series<\/td>\nTS7 Setscrew Type Rigid Coupling<\/td>\n<\/tr>\n
Body Material<\/td>\nAluminum Alloy<\/td>\n<\/tr>\n
Outer Diameter (D)<\/td>\n16 mm<\/td>\n<\/tr>\n
Overall Length (L)<\/td>\n24 mm<\/td>\n<\/tr>\n
Hub Length (L1)<\/td>\n6 mm<\/td>\n<\/tr>\n
Available Bore Sizes<\/td>\n3, 4, 5, 6 mm<\/td>\n<\/tr>\n
Setscrew Thread<\/td>\nM3<\/td>\n<\/tr>\n
Wrench Torque<\/td>\n0.7 N\u00b7m<\/td>\n<\/tr>\n
Rated Torque<\/td>\n0.3 N\u00b7m<\/td>\n<\/tr>\n
Maximum Torque<\/td>\n0.6 N\u00b7m<\/td>\n<\/tr>\n
Maximum Rotational Speed<\/td>\n23,000 rpm<\/td>\n<\/tr>\n
Moment of Inertia<\/td>\n3.1 \u00d7 10\u207b\u2077 kg\u00b7m\u00b2<\/td>\n<\/tr>\n
Mass<\/td>\n11 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Moment of inertia and mass figures are calculated at maximum shaft bore.<\/p>\n

Dimensions<\/h2>\n

\"TS7-16<\/p>\n

Materials and Construction<\/h2>\n

\"TS7-16<\/p>\n

The TS7-16 body is precision-machined from aerospace-grade aluminum alloy, offering an excellent balance of mechanical strength and low mass. The alloy selection provides adequate surface hardness to retain setscrew clamping force across extended service cycles while keeping the total mass at 11 g \u2014 a figure that matters significantly in high-speed or high-cycle applications where coupling mass contributes to system inertia. The natural anodised or clear-coated finish provides moderate oxidation resistance for indoor industrial environments. For environments with active corrosive exposure, the STS7-16 stainless steel variant is the specified alternative.<\/p>\n

The two-piece setscrew design (one grub screw per shaft side, positioned 90\u00b0 offset where geometry permits) provides a directionally balanced clamping arrangement. Setscrews are supplied fitted; the recommended installation sequence is to insert both shafts to the correct depth \u2014 marked by the L1 hub length dimension \u2014 and tighten each setscrew to exactly 0.7 N\u00b7m using a calibrated hex key. Over-tightening beyond this figure risks shaft surface deformation without meaningfully increasing holding torque.<\/p>\n

Key Features and Application Benefits<\/h2>\n
\n
\n

Zero Backlash<\/h3>\n

Rigid one-piece body construction with setscrew clamping delivers absolute zero backlash \u2014 every angular movement on the input shaft is transmitted directly to the output shaft with no lost motion.<\/p>\n<\/div>\n

\n

Ultra-Low Inertia<\/h3>\n

At 3.1 \u00d7 10\u207b\u2077 kg\u00b7m\u00b2, the TS7-16 adds negligible reflected inertia to servo and stepper motor drive systems, preserving servo loop bandwidth and dynamic response.<\/p>\n<\/div>\n

\n

High Rotational Speed<\/h3>\n

Rated to 23,000 rpm maximum speed \u2014 the highest in the TS7 series \u2014 making the TS7-16 suitable for high-speed spindle connections, dental drill auxiliary drives, and precision turbine encoder shafts.<\/p>\n<\/div>\n

\n

Lightweight Construction<\/h3>\n

Aluminum alloy body at 11 g minimises the gravitational and dynamic load contribution from the coupling itself, benefiting vertically mounted or weight-sensitive axis configurations.<\/p>\n<\/div>\n<\/div>\n

Typical Applications<\/h2>\n

The TS7-16 miniature rigid coupling is specified across a broad range of precision motion and instrumentation applications:<\/p>\n