{"id":3470,"date":"2026-07-08T05:14:05","date_gmt":"2026-07-08T05:14:05","guid":{"rendered":"https:\/\/rigid-shaft-coupling.top\/product\/ts7-40-setscrew-type-rigid-coupling-aluminum-alloy-40mm-od-high-torque-precision-coupler\/"},"modified":"2026-07-08T05:14:10","modified_gmt":"2026-07-08T05:14:10","slug":"ts7-40-setscrew-type-rigid-coupling-aluminum-alloy-40mm-od-high-torque-precision-coupler","status":"publish","type":"product","link":"https:\/\/rigid-shaft-coupling.top\/ja\/product\/ts7-40-setscrew-type-rigid-coupling-aluminum-alloy-40mm-od-high-torque-precision-coupler\/","title":{"rendered":"TS7-40 Setscrew Type Rigid Coupling \u2013 Aluminum Alloy 40mm OD High-Torque Precision Coupler"},"content":{"rendered":"
\n

TS7-40 Setscrew Rigid Coupling \u2013 40 mm OD Aluminum Alloy High-Torque Miniature Coupler<\/h1>\n

The TS7-40 setscrew type rigid coupling<\/strong> is the largest and highest-torque aluminum alloy model in the TS7 series. With a 40 mm outer diameter, a bore range extending from 14 to 20 mm, and a nominal torque rating of 5 N\u00b7m, it bridges the gap between miniature precision couplings and the standard industrial coupling range. The upgrade to M5 setscrew threading at this frame size reflects the increased clamping force requirement for reliable torque transmission at 5 N\u00b7m. The specified wrench torque of 1.7 N\u00b7m for M5 setscrews must be observed with a calibrated torque tool to avoid bore surface deformation on smaller shafts within the available range.<\/p>\n

At 100 g total mass and 9.1 \u00d7 10\u207b\u2076 kg\u00b7m\u00b2 rotational inertia (at maximum 20 mm bore), the TS7-40 remains a genuine miniature coupling by mass, but its torque rating places it in the operating range of medium-frame servo motors and compact gearbox outputs. Maximum rotational speed of 8,000 rpm is suited to direct servo motor output shaft connections and gearbox output connections where motor-side speed is reduced. The stainless steel STS7-40<\/strong> (210 g) provides equivalent performance for corrosion-exposed environments.<\/p>\n

A full comparison of TS7 frame sizes, torque ratings, and bore ranges is available on our product catalog<\/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
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nTS7-40<\/td>\n<\/tr>\n
Body Material<\/td>\nAluminum Alloy<\/td>\n<\/tr>\n
Outer Diameter (D)<\/td>\n40 mm<\/td>\n<\/tr>\n
Overall Length (L)<\/td>\n50 mm<\/td>\n<\/tr>\n
Hub Length (L1)<\/td>\n12 mm<\/td>\n<\/tr>\n
Available Bore Sizes<\/td>\n14, 16, 18, 19, 20 mm<\/td>\n<\/tr>\n
Setscrew Thread<\/td>\nM5<\/td>\n<\/tr>\n
Wrench Torque<\/td>\n1.7 N\u00b7m<\/td>\n<\/tr>\n
Rated Torque<\/td>\n5 N\u00b7m<\/td>\n<\/tr>\n
Maximum Torque<\/td>\n10 N\u00b7m<\/td>\n<\/tr>\n
Maximum Rotational Speed<\/td>\n8,000 rpm<\/td>\n<\/tr>\n
Moment of Inertia<\/td>\n9.1 \u00d7 10\u207b\u2076 kg\u00b7m\u00b2<\/td>\n<\/tr>\n
Mass<\/td>\n100 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Dimension Drawing<\/h2>\n

\"TS7-40<\/p>\n

Performance and Installation Notes<\/h2>\n

\"TS7-40<\/p>\n

The 12 mm hub length per side on the TS7-40 \u2014 the longest hub in the TS7 aluminum series \u2014 provides sufficient shaft engagement for reliable 5 N\u00b7m torque transmission. For shafts at the lower end of the bore range (14\u201316 mm), the wall thickness ratio is adequate for the clamping loads involved. At 19 and 20 mm bore with the 40 mm OD, the remaining wall section is thinner; for these bore sizes, applications should stay within the rated 5 N\u00b7m rather than approaching the 10 N\u00b7m maximum continuously.<\/p>\n

Shaft flatted to DIN or equivalent is strongly recommended for the TS7-40 across all bore sizes when operating near rated torque. The M5 setscrew contact area remains a small fraction of the shaft circumference at 20 mm bore, and the flat substantially improves clamping effectiveness.<\/p>\n

Application Areas<\/h2>\n
    \n
  • 750 W to 1.5 kW servo motor output shafts<\/strong> coupled to ball screw or rack-and-pinion drives on machining centres<\/li>\n
  • Compact gearbox output coupling<\/strong> \u2014 planetary gearhead to driven shaft connections in material handling<\/li>\n
  • Precision rotary table index drives<\/strong> \u2014 angular indexing systems in assembly and inspection automation<\/li>\n
  • Hydraulic servo valve feedback shafts<\/strong> \u2014 spool position encoder connections<\/li>\n
  • Wind tunnel model positioning drives<\/strong> \u2014 aerodynamic test rigs with high positional accuracy requirements<\/li>\n<\/ul>\n

    Customer Reviews and Case Studies<\/h2>\n
    \n
    \n

    \u2605\u2605\u2605\u2605\u2605<\/p>\n

    Czech Republic \u2014 Machine Tool Manufacturer<\/p>\n

    We use the TS7-40 to couple servo motors to ball screws on our precision grinding machine Y-axis. The coupling handles the rated operating torque without slip and has maintained its zero-backlash performance over two years of three-shift production. Batch dimensional consistency has been reliable across multiple orders.<\/p>\n

    \u2014 Chief Engineer, Brno<\/p>\n<\/div>\n

    \n

    \u2605\u2605\u2605\u2605\u2605<\/p>\n

    Singapore \u2014 Semiconductor Equipment OEM<\/p>\n

    Specified for wafer handling robot axis drives. The 18 mm bore matched our servo gearhead output shaft exactly. The coupling’s low mass was important for our moving-axis mass budget. Technical data was accurate and the pre-sales team confirmed compatibility with our servo amplifier inertia ratio requirement.<\/p>\n

    \u2014 Mechanical Design Engineer, Singapore<\/p>\n<\/div>\n

    \n

    \u2605\u2605\u2605\u2605\u2606<\/p>\n

    France \u2014 Automation Integrator<\/p>\n

    Used in a custom rotary indexing table drive. The TS7-40 with a 20 mm bore performed well at the specified 4 N\u00b7m operating torque. We applied a shaft flat on our motor shaft as recommended, which resolved a minor slippage issue observed during initial commissioning at peak torque. Satisfied with the product and the technical guidance provided.<\/p>\n

    \u2014 Application Engineer, Lyon<\/p>\n<\/div>\n<\/div>\n

    Frequently Asked Questions<\/h2>\n