Product Introduction

INEED 615 series 6mm mini planetary DC gear motors are built for compact mechanisms that require slightly higher torque capability than the 609 series while maintaining a 6mm diameter interface. The coreless motor body length is 15 mm, and the planetary gearbox length increases with ratio: 20.80 mm (5.14:1), 22.60 mm (26.45:1), 24.40 mm (136.02:1), and 26.20 mm (699.55:1). This makes the overall package easy to budget in the axial direction when designing smart lock drives, compact consumer actuators, and space‑limited motion assemblies. Four reduction options—5.14, 26.45, 136.02, and 699.55:1—allow you to tune output speed and torque to your load profile while keeping the same mechanical family. Wiring length and connector type can be specified for your harness. Request datasheet, outline drawings, STEP model, and performance curves to validate torque margin, current draw, and thermal behavior before release.

Outline drawing

Customizable items: 1. Length and shape (A and B); 2. Voltage, output speed, torque, etc. ; 3. Adding connectors, lead wire length.

The basic parameters are for reference

Note: The specifications below are for reference. Final performance depends on load, voltage, and duty cycle.

Designed for smart lock actuation and compact consumer mechanisms where axial space is limited and torque margin is required.
Use the ratio table to select a configuration, then request curves + drawings for design validation.

How to select the gear ratio (practical guide)

• 5.14:1 (IND-GM-615-5.14) — when you need fast motion and light load. Reference output speed ~5000 rpm, torque ~5 g·cm.
• 26.45:1 (IND-GM-615-26.45) — general starting point for prototypes. Reference output speed ~1000 rpm, torque ~25 g·cm.
• 136.02:1 (IND-GM-615-136) — for latch/cam mechanisms requiring higher drive force. Reference output speed ~200 rpm, torque ~120 g·cm.
• 699.55:1 (IND-GM-615-699) — for maximum torque / holding at very low speed. Reference output speed ~40 rpm, torque ~200 g·cm.

Engineering tip: If your mechanism sees peak friction (cold temperature, tighter tolerances, spring preload), select the ratio with enough torque margin and avoid operating near stall.

Length planning (axial stack-up)

All 615 models use a 15.0 mm motor body (L2). Total length L1 varies by ratio: 20.80 / 22.60 / 24.40 / 26.20 mm.
This lets you trade axial length for torque without changing the 6mm diameter interface.

Engineering files & design-in support

For design-in and verification, we can provide: datasheet, 2D outline drawing, STEP 3D model, and performance curves (speed/torque/current).
Send your target torque, motion time, available current, and duty cycle—our engineers will recommend the best model and share the corresponding curve set.

FAQs 

Are the speed, current, and torque values guaranteed?

They are reference values for selection. Actual speed/torque/current depend on supply voltage, driver limits, load profile, and duty cycle. For release decisions, please use our performance curves and validate under your real load.

Which 615 model is typically used for smart lock actuation?

Many lock mechanisms need higher torque margin at low speed, so 136.02:1 or 699.55:1 are common starting points. The final choice depends on required latch force, travel time, and available current. Share these inputs and we will recommend the safest ratio.

How do I avoid damage from stall or overload?

Avoid driving into hard stops under power. Add current limiting and time-based protection in the driver/firmware, and size the ratio so normal operation stays away from stall. If you provide your mechanism’s peak torque and duty cycle, we can help set a safe operating window.