{"id":3513,"date":"2026-07-08T05:17:13","date_gmt":"2026-07-08T05:17:13","guid":{"rendered":"https:\/\/rigid-shaft-coupling.top\/product\/ts7z105x155-locking-assembly-rigid-coupling-105mm-shaft-155mm-od-keyless-hub-connection\/"},"modified":"2026-07-08T05:17:22","modified_gmt":"2026-07-08T05:17:22","slug":"ts7z105x155-locking-assembly-rigid-coupling-105mm-shaft-155mm-od-keyless-hub-connection","status":"publish","type":"product","link":"https:\/\/rigid-shaft-coupling.top\/th\/product\/ts7z105x155-locking-assembly-rigid-coupling-105mm-shaft-155mm-od-keyless-hub-connection\/","title":{"rendered":"TS7Z105\u00d7155 Locking Assembly Rigid Coupling \u2013 105mm Shaft 155mm OD Keyless Hub Connection"},"content":{"rendered":"
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TS7Z105\u00d7155 Locking Assembly \u2013 105mm Shaft 155mm OD Keyless Rigid Shaft-Hub Connector<\/h1>\n

The TS7Z105\u00d7155<\/strong> addresses 105 mm shaft connections with 5.84 kN\u00b7m rated torque and 144 kN axial capacity. The 57 MPa surface pressure at M_a = 145 N\u00b7m installation torque makes this model suitable for the largest continuously driven industrial machinery \u2014 cement raw mill drives, large agitator drives, and major paper machine calendar roll drives. 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 57 MPa for the TS7Z105\u00d7155 at the specified M_a of 145 N\u00b7m \u2014 generates a friction connection that transmits both torque (Mt = 5.84 kN\u00b7m) and axial force (Ft = 144 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>\nTS7Z105\u00d7155<\/td>\n<\/tr>\n
Type<\/td>\nLocking Assembly (Keyless Shaft-Hub Connection)<\/td>\n<\/tr>\n
Shaft Bore (d)<\/td>\n105 mm<\/td>\n<\/tr>\n
Outer Diameter (D)<\/td>\n155 mm<\/td>\n<\/tr>\n
Rated Axial Force (Ft)<\/td>\n144 kN<\/td>\n<\/tr>\n
Rated Torque (Mt)<\/td>\n5.84 kN\u00b7m<\/td>\n<\/tr>\n
Surface Pressure (Ps)<\/td>\n57 MPa<\/td>\n<\/tr>\n
Installation Screw Torque (Ma)<\/td>\n145 N\u00b7m<\/td>\n<\/tr>\n
Mass (G)<\/td>\n7.9 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

\"TS7Z105\u00d7155<\/p>\n

Structural Cross-Section<\/h2>\n

\"TS7Z105\u00d7155<\/p>\n

Installation and Design Guidance<\/h2>\n

\"TS7Z105\u00d7155<\/p>\n

Installation of the TS7Z105\u00d7155 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 = 145 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 (57 MPa) \u2264 0.9 \u00d7 shaft yield strength. For C45 steel (yield ~370 MPa): 0.9 \u00d7 370 = 333 MPa > 57 MPa \u2014 acceptable. For aluminium alloy 6061-T6 (yield ~275 MPa): 0.9 \u00d7 275 = 247 MPa; compare with 57 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

Thailand \u2014 Quarrying & Aggregates<\/p>\n

The TS7Z105\u00d7155 is used in primary jaw crusher drive connections at our quarry. The cyclic shock loading of jaw crushing operations is handled by the locking assembly’s high preload friction without any evidence of progressive slip or position change over our 12-month inspection interval.<\/p>\n

\u2014 Design Engineer, Bangkok<\/p>\n<\/div>\n

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

United Arab Emirates \u2014 Thermal Power Station<\/p>\n

Installed on steam turbine auxiliary drive shaft connections at our 58 MW coal-fired power station. The locking assembly’s zero-keyway design was selected based on our shaft fatigue analysis \u2014 eliminating the keyway stress concentration extended the calculated fatigue life from 80,000 to over 200,000 operating hours.<\/p>\n

\u2014 Technical Manager, Dubai<\/p>\n<\/div>\n

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

Nigeria \u2014 Concrete Mixing Equipment<\/p>\n

The TS7Z105\u00d7155 is installed in concrete mixer drum drive connections on our truck-mounted transit mixers. The locking assembly handles the variable torque loading of drum rotation during mixing and discharge cycles without slip. Removal at drum maintenance intervals is straightforward with the torque-wrench release procedure.<\/p>\n

\u2014 Technical Buyer, Lagos<\/p>\n<\/div>\n<\/div>\n

Frequently Asked Questions<\/h2>\n