{"id":3511,"date":"2026-07-08T05:17:13","date_gmt":"2026-07-08T05:17:13","guid":{"rendered":"https:\/\/rigid-shaft-coupling.top\/product\/ts7z95x140s-locking-assembly-rigid-coupling-95mm-shaft-140mm-od-keyless-hub-connection\/"},"modified":"2026-07-08T05:17:14","modified_gmt":"2026-07-08T05:17:14","slug":"ts7z95x140s-locking-assembly-rigid-coupling-95mm-shaft-140mm-od-keyless-hub-connection","status":"publish","type":"product","link":"https:\/\/rigid-shaft-coupling.top\/th\/product\/ts7z95x140s-locking-assembly-rigid-coupling-95mm-shaft-140mm-od-keyless-hub-connection\/","title":{"rendered":"TS7Z95\u00d7140S Locking Assembly Rigid Coupling \u2013 95mm Shaft 140mm OD Keyless Hub Connection"},"content":{"rendered":"
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TS7Z95\u00d7140S Locking Assembly \u2013 95mm Shaft 140mm OD Keyless Rigid Shaft-Hub Connector<\/h1>\n

The TS7Z95\u00d7140S<\/strong> \u2014 the ‘S’ designation indicating a specific configuration within this bore class \u2014 delivers 5.22 kN\u00b7m rated torque at 68 MPa surface pressure for 95 mm shaft connections. Large gearbox output shafts, primary crusher drives, and heavy-duty industrial pump drives in the 1.5\u20133 MW power range are primary application areas. 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 68 MPa for the TS7Z95\u00d7140S at the specified M_a of 84 N\u00b7m \u2014 generates a friction connection that transmits both torque (Mt = 5.22 kN\u00b7m) and axial force (Ft = 123 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>\nTS7Z95\u00d7140S<\/td>\n<\/tr>\n
Type<\/td>\nLocking Assembly (Keyless Shaft-Hub Connection)<\/td>\n<\/tr>\n
Shaft Bore (d)<\/td>\n95 mm<\/td>\n<\/tr>\n
Outer Diameter (D)<\/td>\n140 mm<\/td>\n<\/tr>\n
Rated Axial Force (Ft)<\/td>\n123 kN<\/td>\n<\/tr>\n
Rated Torque (Mt)<\/td>\n5.22 kN\u00b7m<\/td>\n<\/tr>\n
Surface Pressure (Ps)<\/td>\n68 MPa<\/td>\n<\/tr>\n
Installation Screw Torque (Ma)<\/td>\n84 N\u00b7m<\/td>\n<\/tr>\n
Mass (G)<\/td>\n7.5 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

\"TS7Z95\u00d7140S<\/p>\n

Structural Cross-Section<\/h2>\n

\"TS7Z95\u00d7140S<\/p>\n

Installation and Design Guidance<\/h2>\n

\"TS7Z95\u00d7140S<\/p>\n

Installation of the TS7Z95\u00d7140S 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 = 84 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 (68 MPa) \u2264 0.9 \u00d7 shaft yield strength. For C45 steel (yield ~370 MPa): 0.9 \u00d7 370 = 333 MPa > 68 MPa \u2014 acceptable. For aluminium alloy 6061-T6 (yield ~275 MPa): 0.9 \u00d7 275 = 247 MPa; compare with 68 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

Japan \u2014 Printing Machine Manufacturing<\/p>\n

Used in web offset printing press ink roller drive connections. The locking assembly’s zero-backlash rigid connection is essential for print registration accuracy \u2014 any shaft play would appear directly as registration error in the printed product. The TS7Z95\u00d7140S has maintained its position integrity through our planned maintenance disassembly cycles.<\/p>\n

\u2014 Engineering Lead, Osaka<\/p>\n<\/div>\n

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

Czech Republic \u2014 Crane & Hoist OEM<\/p>\n

The TS7Z95\u00d7140S is our standard for crane hoist drum shaft connections. The locking assembly design provides a safe, keyless connection that does not require any modification to the drum shaft or hub bore \u2014 both can be reused when the locking assembly is replaced at its maintenance interval.<\/p>\n

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

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

Malaysia \u2014 Mining & Mineral Processing<\/p>\n

We specify the TS7Z95\u00d7140S for crusher drive shaft connections in our hard rock mining operations. The locking assembly’s published radial force capacity and the known surface pressure on the shaft allow us to design to a traceable standard rather than relying on empirical keyway sizing rules.<\/p>\n

\u2014 Engineering Director, Kuala Lumpur<\/p>\n<\/div>\n<\/div>\n

Frequently Asked Questions<\/h2>\n