Bearing Support Housing – SICOMA MAO 3000/2000 – MOSA14

Bearing Support MOSA14 is constructed from high-grade GGG50 Ductile Iron, and this massive housing serves as the rigid foundation for the SICOMA MAO 3000/2000 twin-shaftconcrete mixer's shaft system. Far more than a simple structural block, the MOSA14 acts as an active vibration dampener, using its 16.1 kg mass to stabilize the shaft assembly during heavy-duty concrete production.

It serves as the system's "lubrication delivery hub." Internal channels inside it move grease and air straight to the sealing labyrinths. This helps the whole sealing group last longer even in tough batching plant conditions for concrete production.

Technical snapshot:

• Part code: MOSA14
• Application: SICOMA MAO 3000/2000, typically Non-Drive Side.
• Material: GGG50 (Ductile Iron)
• Geometry: Dual- stepped bores with 120mm / 180mm meassures to define critical clearances.
• Mass: 16.1 kg
• Connectivity: Fully tapped ports for grease/air delivery and structural bolting.

Abbreviations:

• GGG50: Ductile Iron grade (DIN standard) for high impact resistance.
• ID / OD: Inner Diameter / Outer Diameter

Why replacement matters?:

The structural integrity of this housing dictates shaft alignment.

• Structural Failure: Cracks in the casting or wear on internal surfaces compromise the entire shaft geometry.
• Lubrication Failure: Blockage of the internal grease pathways starves the sealing system.
• Consequence: Once the lubrication barrier fails, concrete slurry rushes into the bearing seat, resulting in irreversible damage to both the expensive main shaft and the bearing.

What to check before ordering:

This is a large-scale support housing typically used on the Non-Drive Side of MAO 3000/2000 models.

• Identification Alert: The Grease Ports define this part. If you see a similar housing without ports, that is a different part (MOSAP10) [Link to: MOSAP10]. They are not interchangeable.
• Recommendation: The only valid identification method is checking the physical port layout against the serial-specific Sicoma spare parts list.

Installation notes:

• Hardware: Secure the block using heavy-duty VB059 bolts and RG024 washers.
• Airway Check: Before mounting, verifying the patency of grease passages using compressed air is improtant and there is a simple way to undertand if the airway still operational. If air doesn't flow, grease won't either.
• Torque Strategy: Force a criss-cross (star) pattern to secure the housing without stressing the casting.
• Fixation: Add the GRA30 grub screw for extra security against vibration.
• For critical maintenance, installation should be performed by a qualified technician.