TTB1-2952-3002-C Kollmorgen
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The Kollmorgen TTB1-2952-3002-C is a direct drive motor in the Inland Direct Drive Motors series and has a rated power of 1.18 kW at 480 VAC. It provides a peak torque of 15.9 Nm and runs at a rated speed of 3000 rpm with a peak current of 11.0 Amps. This motor weighs 4.35 kilograms and features a thermal time constant of 20 minutes.
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Product Description:
The TTB1-2952-3002-C is a frameless direct-drive motor built by Kollmorgen within the Inland Direct Drive Motors series. As a torque-generating rotor-stator kit, it is intended for integration into precision automation stages where eliminating gearboxes improves stiffness and accuracy. By coupling directly to the load, the unit delivers controlled rotary motion for indexing tables, semiconductor tools, and other equipment that benefit from high torque density and reduced maintenance. The frameless configuration allows the rotor and stator to become part of the machine assembly rather than requiring a separate motor housing. This arrangement also reduces the number of mechanical transmission components between the motor and the driven load.
At its rated operating point, the motor provides 1.18 kW of mechanical output while rotating at 3000 rpm and delivering 3.76 Nm of continuous torque. The stator operates from a 480 VAC three-phase supply, providing headroom for current peaks without saturating the winding. Under transient demand, the electromagnetic design supports 15.9 Nm of peak torque, allowing short bursts of acceleration before thermal limits are reached. The 10-pole topology works with the drive’s electronic commutation to maintain smooth speed control. Continuous RMS current is 2.76 A at standstill. The winding has an inductance of 32.6 mH and a resistance of 8.04 Ω, which influence current response and heat generation across operating cycles.
During overload events, the drive may call for 11.0 A of peak phase current, which the windings tolerate briefly because the 20-minute thermal time constant slows the temperature rise. Holding applications are supported by a 4.70 Nm standstill torque, and only 0.038 Nm must be overcome to initiate motion. The torque constant of 1.72 Nm/A relates commanded current to developed torque, supporting accurate servo-loop tuning. Dynamic response is reinforced by the low 2.1 kgcm² rotor inertia, which allows the motor to change speed quickly under suitable load conditions. The motor has a mass of 4.35 kg, supporting integration into compact machine frames without adding excessive weight.
