Pinion Cover Plate 82174 - Protective Metal Component

Part Number: 82174

Type: Protective metal cover plate for pinion gear mechanism

Function and Purpose:

The Pinion Cover Plate is a protective metal component designed specifically for vintage and industrial "shoe patcher" sewing machines. It serves as a critical shield for the internal pinion gear mechanism, which is responsible for the unique 360-degree directional sewing capabilities of these specialized machines used in cobbler shops and leather goods manufacturing.

Key Functions:

Gear Protection: Encloses and protects the pinion gear from dust, debris, and thread buildup that could jam the rotating mechanism during heavy-duty sewing operations.

Structural Support: The plate is held in place by two screws and ensures the gear remains correctly aligned during the high-pressure sewing of heavy materials like leather, canvas, and footwear components.

Smooth Surface: Provides a smooth, polished exterior surface so that leather or footwear can slide over the machine arm without snagging during directional stitching, essential for professional-quality shoe repair and leather work.

When to Replace:

Replace this cover plate if it becomes damaged, cracked, or worn, as a compromised plate can allow debris into the pinion gear assembly and cause jamming or misalignment. Regular inspection ensures smooth operation and protects the internal gear mechanism.

Compatible Singer Models:

Singer 29K Class: 29K71, 29K73, and most Singer 29 and 29K Class machines

Machine Type: Cobbler machines, patcher machines, and industrial shoe repair machines with 360-degree directional sewing capability

Professional Tip: When replacing the pinion cover plate, clean the pinion gear area thoroughly and check for wear on the gear teeth. Proper maintenance of this assembly ensures reliable directional sewing for leather goods and footwear repair.