This item be inside the gearbox Mechanical Buffalo (MB) ,
at pulley side.
Dimension  : 8.3"
Weight          : 500 gm
 
 
Function: The C12 shaft is likely an input or intermediate shaft on the pulley side of the gearbox. It receives rotational input from a belt-driven pulley and transfers torque to other gears or components within the gearbox. It may connect directly to the pulley or couple with other shafts.
Location: Positioned at the pulley side, it’s likely near the gearbox’s input, where the belt-driven pulley mounts. This shaft could be a single or double-sided shaft, depending on the gearbox design (e.g., similar to double-output shafts in some gearboxes).
 
Characteristics:
Material: Likely made of steel or stainless steel for durability, common in gearbox shafts for industrial machinery.
Design: May include keyways, splines, or threads to secure the pulley or couple with other components. For example, some gearbox pulleys have threaded shafts, requiring rotation to remove or install.
Bearings: The shaft is likely supported by bearings (e.g., with viscous friction, as in some mechanical systems) to reduce wear and ensure smooth rotation.
 
Potential Issues: If the shaft is part of an older Buffalo machine, it may be difficult to source replacements due to the age of the equipment. Custom fabrication or shimming (as seen in similar vintage gearboxes) might be required.
 
Recommendations
Verify Part Details:
Check the equipment’s manual or parts list for the exact specifications of "SHAFT C12." Manufacturers like Buffalo Forge often have detailed schematics in their documentation.
If you have a model number for the Mechanical Buffalo (e.g., Buffalo Forge Drill Press), cross-reference it with parts catalogs on sites like eBay, PicClick, or industrial supplier websites.
 
Inspect the Shaft:
Confirm if the shaft is damaged, worn, or seized (e.g., as described in cases where pulleys are difficult to remove due to threaded shafts).
Check for keyways, splines, or threading that might affect pulley attachment or removal.
 
Sourcing a Replacement:
Specialty Suppliers: Look for suppliers like Search4Parts or OndrivesUS, which offer custom or standard gearbox shafts.
Vintage Machinery Forums: Sites like V8Buick.com or AJS & Matchless Owners Club forums may have communities familiar with sourcing parts for older machinery.
Custom Fabrication: If the shaft is unavailable, consider having it machined based on measurements or drawings.
 
Installation Considerations:
If the shaft is threaded (as in some pulley systems), use a spanner wrench or a custom jig to rotate and remove/install it.
Ensure proper alignment with the pulley and belt to avoid misalignment, which can cause wear or vibration.
 
Maintenance:
Lubricate bearings and check for wear in associated components (e.g., belts, pulleys) to prolong the shaft’s life.