KHJ-MC254-00SS 12-72MM Feeder Gear

KHJ-MC254-00 – SS12-72MM Feeder Gear

Drive Gear for Yamaha SS12 72MM Tape Feeder

Overview

The KHJ-MC254-00 is a precision-engineered feeder gear used in the Yamaha SS12-72MM series feeders. It is a key mechanical component responsible for transferring motion from the drive unit to the internal tape advancement mechanism.

Key Features

Part Number: KHJ-MC254-00
Type: Feeder drive gear
Application: Yamaha SS12 feeders designed for 72mm width carrier tape
Material: High-strength steel or engineered polymer (depending on version)
Function:

Engages with the gear system inside the feeder
Drives the component tape forward precisely for pick-and-place operations
Works with internal spring/wire or motor-driven tension systems

Benefits

High Feeding Precision: Ensures synchronized tape advancement with the machine’s pick cycle
Durability: Designed for continuous high-speed SMT operation
OEM Fit: Direct Yamaha replacement part for SS12-72MM feeders
Low Maintenance: Long lifespan with minimal lubrication requirements

Applications

Used in Yamaha SS12 series feeders (72mm width), common in mid-to-large component packaging
Found in automated pick-and-place lines using YS/YSM/YG Yamaha SMT platforms
Critical for feeding embossed or paper tape components with consistent pitch

Summary

The KHJ-MC254-00 Feeder Gear is a vital motion component that ensures smooth, precise, and reliable component tape feeding inside Yamaha SS12-72MM feeders. Its robust design supports efficient, high-speed SMT production with reduced downtime and accurate placement performance.

Related Accessories – KHJ-MC254-00 Feeder Gear

Notes:

These accessories are part of the gear-driven feed system inside the Yamaha SS12-72MM feeder.
Proper function of the KHJ-MC254-00 gear depends on the alignment and condition of these related components.
When replacing the gear, also inspect the shaft, pulley, and wire rope for signs of wear or misalignment.

Related Part Numbers – KHJ-MC254-00 Feeder Gear

Notes:

These part numbers form the mechanical drive and feed system of Yamaha SS12-72MM feeders.
When replacing the KHJ-MC254-00 gear, always check for wear on the shaft, pulley, and spring system.
Ensure all parts are OEM Yamaha to maintain precision and reliability in tape feeding.

FAQ Guide — KHJ-MC254-00

Feeder Drive Gear for Yamaha SS12-72MM Tape Feeder

1. What is KHJ-MC254-00?

KHJ-MC254-00 is a drive gear inside the Yamaha SS12-72MM feeder, responsible for transmitting motion from the feeder drive mechanism to advance the tape that carries components.

2. What is it used for?

It drives the internal feeding system, moving the tape forward one pitch at a time during each pick cycle, ensuring the correct alignment of components for pick-up by the SMT machine head.

3. Which feeders use this part?

Yamaha SS12-72MM feeders
May also be compatible with specific SS feeder variants configured for wider tape types (72mm width)

4. What parts work with this gear?

Related parts include:

KHJ-MC255-00 – Gear shaft
KHJ-MC253-00 – Pulley (transmits motion to the gear)
KHJ-MC25A-00 – Steel wire rope assembly
KHJ-MC26D-00 – Return spring
KHJ-MC28B-00 – Protection cover for the gear and wire rope

5. What are common signs of gear failure?

Tape not advancing properly
Skipping or misaligned components
Gear teeth worn, chipped, or stripped
Abnormal noise from feeder motion

6. How do I replace this gear?

1. Remove the protection cover (KHJ-MC28B-00)
2. Detach retaining clips or screws securing the gear
3. Inspect and clean the gear shaft
4. Install the new gear (KHJ-MC254-00)
5. Reassemble with original or new retaining hardware
6. Manually test the feeding motion before use

7. Is lubrication required?

No regular lubrication is needed if the feeder is used under standard SMT factory conditions. If maintenance is performed, apply light machine oil only as directed by Yamaha guidelines.

8. How often should this part be inspected?

Visual check: Every 3–6 months or per maintenance cycle
Check during routine feeder cleaning or overhaul
Replace immediately if damaged or feeding becomes unreliable

9. Does this gear affect placement accuracy?

Yes. A worn or slipping feeder gear can cause misfeeds, leading to misplaced components, machine pick errors, or line downtime.

10. Where can I buy the KHJ-MC254-00 gear?

From authorized Yamaha SMT parts distributors or through Yamaha-certified service centers. Always use genuine OEM parts to ensure compatibility and performance.

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