{"id":3496,"date":"2026-07-08T05:16:07","date_gmt":"2026-07-08T05:16:07","guid":{"rendered":"https:\/\/rigid-shaft-coupling.top\/product\/ts7z35x75-locking-assembly-rigid-coupling-35mm-shaft-75mm-od-keyless-hub-connection\/"},"modified":"2026-07-08T05:16:08","modified_gmt":"2026-07-08T05:16:08","slug":"ts7z35x75-locking-assembly-rigid-coupling-35mm-shaft-75mm-od-keyless-hub-connection","status":"publish","type":"product","link":"https:\/\/rigid-shaft-coupling.top\/vi\/product\/ts7z35x75-locking-assembly-rigid-coupling-35mm-shaft-75mm-od-keyless-hub-connection\/","title":{"rendered":"TS7Z35\u00d775 Locking Assembly Rigid Coupling \u2013 35mm Shaft 75mm OD Keyless Hub Connection"},"content":{"rendered":"
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TS7Z35\u00d775 Locking Assembly \u2013 35mm Shaft 75mm OD Keyless Rigid Shaft-Hub Connector<\/h1>\n

The TS7Z35\u00d775<\/strong> introduces a notable step in rated torque and axial capacity compared to smaller models, with M_a increasing to 42 N\u00b7m \u2014 indicating the larger screw size used in this frame. The 35 mm bore suits IEC frame 180 and 200 motors in the 15\u201330 kW class, and the 1.3 kg mass remains manageable for two-person installation without lifting equipment. For a complete listing of all TS7Z locking assembly models, visit our product catalog<\/a>.<\/p>\n

The TS7Z locking assembly operates on the principle of tapered ring compression: two tapered steel rings \u2014 inner and outer \u2014 are drawn together axially by the clamping screws. The taper geometry converts axial screw preload into a radial clamping force, expanding the inner ring against the shaft surface and contracting the outer ring against the hub bore simultaneously. The resulting surface pressure \u2014 80 MPa for the TS7Z35\u00d775 at the specified M_a of 42 N\u00b7m \u2014 generates a friction connection that transmits both torque (Mt = 0.499 kN\u00b7m) and axial force (Ft = 31.2 kN) without any mechanical interlock element. No keyway is required in either the shaft or the hub bore.<\/p>\n

The elimination of the keyway is the principal engineering advantage of the TS7Z over traditional keyed hub connections. A keyway introduces a stress concentration at its corners that can initiate fatigue cracks under the cyclic torsion loading of a rotating drive \u2014 particularly at high surface hardness or in applications with frequent torque reversals. The TS7Z distributes torque loading uniformly around the full circumference of the shaft bore, eliminating this stress riser and significantly extending the fatigue life of the connected shafts. For high-cycle, high-torque drives \u2014 mills, fans, compressors, and crushers \u2014 this durability improvement is a primary selection rationale.<\/p>\n

Technical Specifications<\/h2>\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>\nTS7Z35\u00d775<\/td>\n<\/tr>\n
Type<\/td>\nLocking Assembly (Keyless Shaft-Hub Connection)<\/td>\n<\/tr>\n
Shaft Bore (d)<\/td>\n35 mm<\/td>\n<\/tr>\n
Outer Diameter (D)<\/td>\n75 mm<\/td>\n<\/tr>\n
Rated Axial Force (Ft)<\/td>\n31.2 kN<\/td>\n<\/tr>\n
Rated Torque (Mt)<\/td>\n0.499 kN\u00b7m<\/td>\n<\/tr>\n
Surface Pressure (Ps)<\/td>\n80 MPa<\/td>\n<\/tr>\n
Installation Screw Torque (Ma)<\/td>\n42 N\u00b7m<\/td>\n<\/tr>\n
Mass (G)<\/td>\n1.3 kg<\/td>\n<\/tr>\n
Material<\/td>\nSteel<\/td>\n<\/tr>\n
Standard<\/td>\nGB\/T 5106 compatible<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Dimensional Reference<\/h2>\n

\"TS7Z35\u00d775<\/p>\n

Structural Cross-Section<\/h2>\n

\"TS7Z35\u00d775<\/p>\n

Installation and Design Guidance<\/h2>\n

\"TS7Z35\u00d775<\/p>\n

Installation of the TS7Z35\u00d775 requires the shaft surface to be clean, dry, and within an h6 or k6 shaft tolerance, with a surface finish of Ra 0.8\u20131.6 \u03bcm. The hub bore should be machined to H7 tolerance. Clamping screw threads and head bearing faces must be lubricated with MoS\u2082 paste before installation to ensure the M_a = 42 N\u00b7m tightening torque produces the correct clamping force. Tighten all screws in a star pattern in at least three progressive passes \u2014 do not fully tighten one screw before the others.<\/p>\n

To verify shaft material suitability, check: Ps (80 MPa) \u2264 0.9 \u00d7 shaft yield strength. For C45 steel (yield ~370 MPa): 0.9 \u00d7 370 = 333 MPa > 80 MPa \u2014 acceptable. For aluminium alloy 6061-T6 (yield ~275 MPa): 0.9 \u00d7 275 = 247 MPa; compare with 80 MPa for this model. If the shaft material yield strength is insufficient, contact our contact our team<\/a> for a re-rated configuration.<\/p>\n

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Keyless Design<\/h3>\n

No keyway in shaft or hub. Eliminates keyway stress concentration and fretting wear. Angular position can be set freely \u2014 no keyway angular constraint.<\/p>\n<\/div>\n

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Self-Releasing Disassembly<\/h3>\n

Back off clamping screws in a star pattern \u2014 the taper geometry produces a self-releasing action requiring no extraction tools or heat. Shaft and hub surfaces are undamaged after removal.<\/p>\n<\/div>\n

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Uniform Load Distribution<\/h3>\n

Torque is transmitted through friction uniformly around the full shaft circumference, distributing stress evenly and enabling the same torque to be carried at lower peak shaft stress than a keyed connection.<\/p>\n<\/div>\n

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Bidirectional Torque<\/h3>\n

Frictional connection transmits equal torque in both rotational directions. No directional constraint \u2014 suitable for reversing drive applications without additional design consideration.<\/p>\n<\/div>\n<\/div>\n

Customer Reviews and Case Studies<\/h2>\n
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\u2605\u2605\u2605\u2605\u2605<\/p>\n

India \u2014 Cement Plant Engineering<\/p>\n

Installed in raw mill drive connections on our cement production line. The TS7Z35\u00d775 handles the shock load and start-up torque of the mill drive without any fretting or slip across two years of continuous three-shift operation. The 1.3 kg mass is low enough that lifting equipment is not required for installation.<\/p>\n

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

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

South Korea \u2014 Chemical Process Plant<\/p>\n

Used in agitator drive shaft connections on our chemical reactor vessels. The TS7Z35\u00d775 allows shaft removal for vessel maintenance without shaft modification \u2014 the locking assembly releases cleanly when the screws are backed off, unlike interference-fit hubs that require heating and pressing. The 31.2 kN axial load capacity covers our process torque requirements with margin.<\/p>\n

\u2014 Senior Designer, Busan<\/p>\n<\/div>\n

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

Turkey \u2014 Automotive Press Line<\/p>\n

Installed in the main press ram drive connections on our automotive transfer press. The TS7Z35\u00d775 handles the cyclic peak torque of the press drive reliably. After 24 months and over 2 million press cycles, we have not had a single locking assembly issue. The shaft surface condition after disassembly at our last scheduled maintenance was excellent.<\/p>\n

\u2014 Applications Engineer, Ankara<\/p>\n<\/div>\n<\/div>\n

Frequently Asked Questions<\/h2>\n