Cast Steel & Rubber Blocks
Intrinsically Fail-Safe Design
Gear Coupling Alternative
Heavy-Duty Cast Steel Construction with Tunable Rubber Block Stiffness
Constructed from Cast Steel and heavy-duty rubber blocks — a unique, maintenance-free replacement for conventional Gear Couplings.
Severe Shock Load Protection: Avoids driveline failure by cushioning high transient starting torques.
Intrinsically Fail-Safe: Ensures continuous operation of the driveline in the unlikely event of rubber failure or damage.
Maintenance-Free: Zero lubrication or ongoing adjustment required, resulting in exceptionally low running costs.
Vibration Control: Achieves low vibratory loads in driveline components via optimal rubber block stiffness selection.
Zero Backlash & Misalignment: Pre-compressed rubber eliminates torque amplifications while accommodating axial and radial shaft misalignment.
Low Replacement Time: Future replacement parts are strictly the Rubber Blocks, replaced swiftly with minimal plant stoppage.
Field Proven Deployments
Industry Applications for Type-TBC
Targeted for critical heavy continuous drives across core industrial plants.
Mines & Mineral Processing
Heavy Belt Conveyors, Primary & Secondary Crushers, Feeder Breakers.
Cement Plants
Raw Mill & Coal Mill Drives, Cement Mill Drives, Heavy Process Exhaust Fans.
Thermal Power Stations
Ball Mill Pulverizers, Coal Handling Plant, Conveyors, Crushers & Induced Draft Fans.
General Industry
Industrial Fans & Blowers, Process Pumps & Compressors, Generator Sets & Turbines.
Technical Dimension Chart 1
Torque in Kgm | All Dimensions in Millimetres (mm) | Weight in Kg
TBC Shaft-to-Shaft & Flange-to-Shaft Dimension Chart
| Coupling Size | Tnom (Kgm) | Max RPM (RPM) | ØA | ØB | ØC | K | Pilot B1 | Pilot B2 | Finish Bore Max | N | L1 & L2 | Total L | ØB | M X ØP | Appx. Wt (Kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TBC 10 | 45 | 7000 | 158.9 | 130 | 75 | 35 | 28 | 23 | 41 | 1 | 105 | 186 | 829 | 6.7 | |
| TBC 20 | 78 | 6000 | 187.3 | 148 | 93 | 39 | 28 | 27 | 51 | 2 | 110 | 171 | 829 | 15.0 | |
| TBC 30 | 144 | 5200 | 210 | 182 | 108 | 45 | 28 | 32 | 64 | 2 | 139 | 197 | 829 | 18.5 | |
| TBC 40 | 330 | 4300 | 269.3 | 203 | 122 | 60 | 38 | 40 | 72 | 3 | 145 | 214 | 829 | 23.0 | |
| TBC 50 | 520 | 4000 | 291 | 223 | 135 | 61 | 52 | 54 | 85 | 3 | 178 | 246 | 12X10 | 28.5 | |
| TBC 60 | 820 | 3700 | 322 | 245 | 148 | 69 | 64 | 66 | 95 | 3 | 185 | 276 | 12X10 | 58.0 | |
| TBC 70 | 1230 | 3350 | 359 | 281 | 168 | 103 | 75 | 72 | 109 | 4 | 189 | 292 | 212 | 65.0 | |
| TBC 80 | 1650 | 2900 | 392 | 300 | 184 | 86 | 86 | 80 | 135 | 4 | 254 | 366 | 10X17 | 64.9 | |
| TBC 90 | 2700 | 2600 | 448 | 356 | 229 | 104 | 93 | 93 | 143 | 5 | 291 | 407 | 10X17 | 122.5 | |
| TBC 100 | 4000 | 2300 | 498 | 407 | 252 | 123 | 105 | 105 | 162 | 5 | 329 | 458 | 10X17 | 183.0 | |
| TBC 110 | 6100 | 2000 | 569 | 450 | 288 | 141 | 120 | 120 | 159 | 6 | 379 | 528 | 12X21 | 272.0 | |
| TBC 120 | 9300 | 1750 | 639 | 545 | 338 | 200 | 148 | 146 | 213 | 7 | 432 | 598 | 18X21 | 390.0 | |
| TBC 130 | 13250 | 1550 | 728 | 601 | 373 | 218 | 160 | 160 | 240 | 7 | 487 | 680 | 18X25 | 576.0 | |
| TBC 140 | 18400 | 1400 | 786 | 758 | 415 | 252 | 197 | 195 | 269 | 8 | 541 | 750 | 20X25 | 836.0 | |
| TBC 150 | 27850 | 1250 | 925 | 801 | 475 | 288.5 | 192 | 213 | 307 | 8 | 623 | 865 | 20X32 | 1340.0 |
Engineering Methodology
Coupling Sizing Selection Procedure
- Tdyn (Operating Torque): Torque of the input Machine (Kgm)
- Tmax (Permissible Nominal Torque): of the Coupling (Kgm)
- P: Input Power rating in kW
- N: Coupling Operating Speed in RPM
- S: Operational Service Factor from application table
T_dyn = 974 × ( P / N ) Kgm
T_max ≥ T_dyn × S
T_max ≥ T_dyn × S
*Important Verification: After preliminary selection, the coupling must be checked against shaft bore sizes (SK & Bsp), flywheel connecting dimensions (if applicable), shaft gaps (L), and maximum speed limits.
Heavy Duty Classification
Recommended Service Factors (S)
| Load Type | Driven Machinery Profile | S Factor |
|---|---|---|
| Uniform Load | Axial & Radial Blowers, Agitators, Centrifuges, Belt Conveyors, Generators, Centrifugal Compressors & Pumps, Industrial Fans. | 1.5 |
| Light & Medium Shock | Construction Machines, Foods & Passenger Lifts, Cooling Tower Fans, Rotary & Piston Stamper, Steering Gears, Turbo Compressors, Priest Hammers, Plastic Moulding Machines, Winches, Textile Machinery, Medium Duty Cranes, Rotary Pumps & Greases. | 2.0 |
| Heavy Shock | Paper Machines, Stone & Clay Working Machines, Metal Rolling Machines, Metal Working Machines (Breakers, Mills, Ovens), Rubber Moulding Machines, Screw Presses, Primary Crushers, Hammer Mills, Reciprocating Compressors & Pumps, Vibrating Screens, Rubber Calendars, Pulp Grinders. | 2.5 |