Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ORIENTAL MOTOR |
| Model | 2GK180K |
| Product Type | K-Series reduction gearhead |
| Reduction Ratio | 180:1 |
| Compatible Motor Frame | 60 mm K-Series AC motor |
| Typical Motor Pairing | 2IK6 / 2RK6 series, 6 W class |
| Output Speed | Motor speed ÷ 180; depends on 50/60 Hz supply |
| Output Torque | Determined by motor torque × ratio × efficiency; verify with OEM catalog |
| Mounting | Direct mount to K-Series motor; output shaft type varies by sub-model |
| Lubrication | Grease-filled; sealed gearhead in most K-Series configurations |
| Product Status | Legacy K-Series component; verify current availability with supplier |
Product Introduction
Small AC drive trains on packaging lines, conveyors, and light indexing stations often fail at the gearhead rather than the motor. The ORIENTAL MOTOR 2GK180K is a 180:1 K-Series reduction gearhead that bolts directly to a 60 mm frame AC motor. Its job is simple: take a motor running near synchronous speed and turn it into a slow, higher-torque output suitable for belts, rollers, cams, and light positioning mechanisms.
Because it is a gearhead and not a complete motor, it only works when the mating motor, shaft type, and mounting configuration match. In practice, 2GK180K appears on machines that already use ORIENTAL MOTOR 2IK/2RK K-Series motors. Replacement is usually straightforward if the ratio, frame size, and output shaft are verified. If the original gearhead has been leaking grease, making noise, or losing teeth, the motor itself may still be serviceable.
QA/QC Transparency SOP
- Intake & Origin Verification — Confirm model 2GK180K, ratio 180:1, mating motor frame, shaft type, and physical condition. Check for oil leaks, cracked housings, damaged mounting ears, or stripped output shafts.
- Mechanical Inspection — Rotate the input by hand and feel for binding, excessive backlash, grinding, or uneven resistance. Listen for abnormal noise through the gear train.
- Mounting Compatibility Check — Verify that the gearhead mates cleanly with the intended K-Series motor. Confirm pilot diameter, bolt pattern, and shaft coupling alignment.
- Run-In Test — When a compatible motor is available, run the assembly under light load. Monitor output speed stability, noise, vibration, and housing temperature.
- Final QC & Packaging — Clean external surfaces, verify shaft runout, seal ports if applicable, and pack with ratio label, mounting notes, and inspection record.
Field Engineer Gotchas
- It is not a motor. 2GK180K is a gearhead. If the machine has no rotation at all, check the motor, capacitor, power supply, and control circuit before blaming the gearhead.
- Ratio mismatch changes speed dramatically. Replacing a 180:1 gearhead with 60:1 or 90:1 will make the output run two to three times faster. Always confirm the ratio stamped on the nameplate.
- Shaft type matters. K-Series gearheads may have round shafts, keyed shafts, or other output configurations. A mismatched shaft can prevent coupling installation or cause slippage.
- Grease leakage is a red flag. Seepage around the output shaft or mating face suggests seal wear. Even if it still turns, internal contamination can accelerate tooth wear.
- Do not overtighten mounting bolts. The gearhead housing and motor flange are not designed for excessive torque. Distorted mounting surfaces cause misalignment and premature bearing wear.
- Beware of incorrect online listings. Some surplus sites label 2GK180K as a stepper or servo system. Treat those listings as unreliable unless the seller provides an ORIENTAL MOTOR nameplate photo.
ORIENTAL MOTOR 2GK180K
Application Scenarios
- Small conveyor drives. Provides low-speed torque for belt rollers, turntables, and transfer sections driven by 6 W-class AC motors.
- Packaging and labeling machines. Suitable for slow indexing, feed rollers, and tensioning mechanisms where precise electronic positioning is not required.
- Light material handling equipment. Used in chutes, gates, diverters, and small elevators that need steady reduction rather than high dynamic response.
- Legacy OEM equipment maintenance. Keeps older ORIENTAL MOTOR K-Series assemblies running when the original gearhead has worn or leaked.
FAQ
Is 2GK180K a complete motor?
No. It is a K-Series reduction gearhead. It must be mounted to a compatible ORIENTAL MOTOR AC motor such as a 2IK/2RK 6 W unit.
What does the “180” mean?
It indicates a 180:1 reduction ratio. The output speed is the motor speed divided by 180, minus gearhead losses.
Can I use it with any ORIENTAL MOTOR motor?
No. It must match the K-Series 60 mm frame and the correct motor series. Using it with a mismatched frame or motor family will not fit.
Is 2GK180K the same as 2GN180K?
They belong to the same K-Series gearhead family and both indicate a 180:1 ratio, but shaft type, mounting, and output configuration can differ. Confirm the exact sub-model before replacing.
Can it be repaired?
Small K-Series gearheads are typically replaced rather than rebuilt. If there is internal tooth damage, bearing wear, or seal failure, use a verified replacement.
How do I confirm the correct replacement?
Send photos of the gearhead nameplate, motor nameplate, output shaft, mounting face, and the machine application. Ratio and shaft type are the most critical checks.
