110J18165-460 High Torque NEMA42 Stepper Motor - 24 N·m

A High Torque NEMA42 Stepper Motor for Heavy-Duty Axes

The 110J18165-460 is a High Torque NEMA42 Stepper Motor built on the NEMA42 (110 mm) frame, rated for 24 N·m of holding torque at a 6.0 A phase current. With a 165 mm body and a 19 mm shaft, it operates in open-loop mode, keeping the control chain simple and avoiding encoder feedback cost where step resolution meets the accuracy requirement.

Heavy-Load Positioning Capacity

A holding torque of 24 N·m places this motor at the upper end of two-phase steppers, letting it move substantial masses at low to medium speed without the cost of a servo loop. It is intended for axes where gravitational and inertial loads are significant and where drift between steps must remain low.

Engineering Data

• Frame: NEMA42 (110 mm)
• Body length: 165 mm
• Phase current: 6.0 A
• Holding torque: 24 N·m
• Shaft: 19 mm
• Type: 2-phase, open-loop

Application in CNC Axes and Rotary Tables

Its torque envelope suits CNC axis drives and rotary table indexing where high standstill torque is required to hold workpiece position and resist cutting forces. In a rotary-table duty cycle, the large holding torque prevents angular slip during acceleration and deceleration of the indexing load. Heavy gantry axes and large-index mechanisms are also realistic candidates.

Mechanical Integration

The 19 mm shaft provides an adequate shoulder for keyed couplings or timing-belt pulleys. Mounting follows the standard 110 mm NEMA42 bolt pattern, and the 6.0 A winding should be matched to a driver capable of supplying continuous rated current to avoid torque derating at speed.

Controlled Heating and Vibration

High-precision stators and rotors with a small air gap reduce magnetic imbalance, limiting motor heating and mechanical vibration during operation. The result is predictable step accuracy over long duty cycles, which matters for repeatable positioning in production machinery.

Selection Considerations

Size the axis on the torque-speed curve rather than the holding value, because open-loop torque falls as speed rises. Confirm the driver current and supply voltage meet the 6.0 A winding, and verify the 19 mm coupling and keyway ratings. As a distributor, Lyenwsin can supply the motor together with a matched high-current drive and application support.