This item for axle housing gearbox right side , used with drive shaft  Mechanical Buffalo (MB).
Dimension :14.4" x 24.2" x 3.4"
Wight          : 7 kg
 
For a Mechanical Buffalo (MB) engine starter, likely a single-cylinder engine (e.g., Kubota EA300 or similar, 7–12 HP) used in agricultural applications, the axle housing gearbox on the right side refers to the assembly that encloses and supports the axle and differential or gear system transmitting power to the wheels. This component is critical for transferring torque from the engine (via the Bando A19 belt and alternator/starter system) to the drive wheels, typically the rear wheels in a mechanical buffalo.
 
Understanding the Axle Housing Gearbox (Right Side)
Function: The axle housing gearbox encases the differential or gear mechanism that splits engine torque to the right and left wheels, allowing them to rotate at different speeds (e.g., during turns). The “right side” likely refers to the right axle shaft and its connection to the wheel, including the housing that protects the gears and bearings.
 
Components:
Axle Housing: A rigid casing (often cast iron or steel) that encloses the differential gears, axle shafts, and bearings, protecting them from dust, water, and debris while supporting the vehicle’s weight.
Differential/Gearbox: In small engines like those in mechanical buffalos, this may be a simple spur gear or bevel gear differential, or even a single-speed gearbox without a true differential for cost savings. It transfers power from the engine’s output shaft (via belt or chain) to the axle shafts.
Right Axle Shaft: A solid rod (half-shaft) that connects the differential/gearbox to the right wheel, transmitting rotational force. It’s typically a full-floating or semi-floating design in small vehicles.
Bearings: Support the axle shaft and reduce friction, often deep groove ball or tapered roller bearings in full-floating designs.
Mechanical Buffalo Context: These vehicles often use a simple, robust design with a live rear axle (driven by the engine). The gearbox may be a basic transaxle (combining transmission and differential) or a separate gear reduction unit connected to the axle housing. The right side axle housing would include the right axle shaft, its bearings, and part of the gear assembly.
 
Specific Considerations
Design Type:
Live Axle: Common in mechanical buffalos, where a single rigid shaft connects both wheels, driven by a simple gearbox or differential. This is sturdy for heavy loads but may lack a true differential, relying on wheel slip for turns.
Semi-Floating vs. Full-Floating: Small agricultural vehicles like mechanical buffalos typically use semi-floating axles (cheaper, with the axle shaft bearing the vehicle’s weight). Full-floating designs (where the housing bears the weight) are less common but used in heavier-duty applications for durability.
Gearbox: Likely a single-speed or two-speed gearbox with bevel or spur gears, integrated into the axle housing. It may connect to the engine via the Bando A19 belt and a pulley system, turning vertical engine output into horizontal axle rotation.
Right-Side Specifics: The right-side axle housing includes the right axle shaft, its bearing, and a portion of the differential or gear system. If the gearbox is offset, the right axle shaft may be shorter or longer depending on the design (similar to transverse engine layouts in cars).
 
Common Issues:
Wear and Tear: Gearbox issues may show as grinding noises, juddering, or burning smells, indicating worn gears or bearings.
Leakage: Seals in the axle housing can fail, causing oil loss and gear damage.
Misalignment: Belt-driven systems (like the A19) can misalign, stressing the gearbox or axle.
 
Sourcing a Replacement
OEM Parts:
Check with the engine manufacturer (e.g., Kubota, Yanmar) or the mechanical buffalo’s brand for OEM axle housing or gearbox parts. For example, Kubota EA300 parts may be available through dealers like Messicks or TractorJoe.
Buffalo Engine Components (Buffalo, NY) specializes in used and remanufactured engine parts but may not stock specific axle housings for agricultural vehicles.