Nema 17 Stepper Motor 2A 55Ncm 5 Pack - Reliable 3D Printer Torque

In this review the focus is on a practical, budget-friendly set of five Nema 17 stepper motors intended for 3D printers, CNC machines and extruder applications. The five-pack offers consistent 55Ncm holding torque per motor and a 1.8 degree step angle, which makes it a good buy for builders who need multiple matched motors without sourcing them individually. The reviewer found the pack delivers solid performance, easy wiring with a 1m cable and connector, and a compact 42 x 42 x 48mm form that fits most hobbyist rigs.

Key Features

• Five motors in one pack: buying five identical Nema 17s simplifies rebuilding or equipping multi-axis printers and keeps motor characteristics matched for smoother motion.
• Strong holding torque: 55Ncm provides noticeable force for many extruder and axis loads and helps reduce skipped steps under moderate mechanical resistance.
• Standard Nema 17 size: 42 x 42mm frame and 48mm body length fit common mounts and couplers used on consumer 3D printers and light CNC machines.
• Electrical compatibility: rated at 2A per phase with 1.3 ohm phase resistance, these motors run acceptably with popular drivers like A4988 and similar controllers when tuned correctly.
• Pre-attached cable and connector: each motor ships with a 1m cable and connector for faster installation and neater wiring on a workbench or printer frame.
• Low noise, high torque design: buyers report quieter operation compared with some alternatives, which helps when printers run in shared spaces.

Who It's For

This pack is aimed at hobbyists, small workshop builders and repairers who need multiple matched Nema 17 motors for 3D printers, extruders or light CNC axes. It is especially useful when replacing a full set of axis motors or outfitting a printer that benefits from identical torque and step characteristics.

Those who need ultra-high torque for heavy industrial CNC, specialized closed-loop servos, or motors with integrated encoders should look elsewhere; this pack is built for general motion control and value rather than industrial heavy-load duty or feedback control systems.

Pros & Cons

Pros

• Good value when buying multiple motors together, simplifying upgrades or repairs.
• Consistent 1.8 degree (200 step) resolution and 55Ncm torque suit most printer and extruder uses.
• Pre-wired 1m cable and connector speeds installation and wiring management.
• Compact 42 x 42 x 48mm size fits common mounts and reduces fitment issues.

Cons

• Some reports note mixed experiences with motor temperature and occasional wiring pin order differences that may need a minor fix.
• Not intended for very high torque industrial applications where larger frames or closed-loop control are required.

Specifications

Manufacturer Part Number	17HE19-2004S
Motor Type	Bipolar stepper
Step Angle	1.8 deg (200 steps/rev)
Holding Torque	55Ncm
Rated Current / Phase	2A
Phase Resistance	1.3 ohms
Frame Size / Body Length	42 x 42mm / 48mm

Our Verdict

The five-pack Nema 17 motors offer a practical balance of performance, consistency and price for makers who need multiple matched motors for a 3D printer or light CNC. They deliver reliable 55Ncm torque and standard electrical specs that work well with common drivers, making them a smart value buy for hobbyists and small shops who want matched motion components without premium industrial features.

Frequently Asked Questions

Are these motors compatible with A4988 drivers?
Yes, they are compatible; set current limits appropriately for the 2A rating and ensure the driver cooling and stepper tuning match your system.

What if the motor wires are swapped on the connector?
Some systems have the middle two wires swapped on the motor side; the fix is to gently pry back the white nub and swap the wires, which is an easy correction.

Will these motors run hot during long prints?
Heat behavior varies by setup; some customers note acceptable temperatures while others report warmer motors under sustained high current-adequate cooling and correct current tuning reduce heat.