Oil Seal 120×160×13 mm (TC) – SICOMA MAO 3000/2000 – PA084
Function: PA084 oil seal for SICOMA MAO 3000/2000:
PA084 oil seal for SICOMA MAO 3000/2000 is a heavy-duty TC (Double Lip) rotary shaft seal serves as the primary defense line for SICOMA MAO twin-shaft mixer bearing supports used in ready-mix concrete batching plants. Specifically engineered for the 120 mm shaft sleeve, the Oil Seal PA084 utilizes a smart dual-action architecture to solve two critical problems simultaneously.
The main lip keeps essential lubrication within the housing, while the secondary dust lip strongly prevents abrasive slurry and fine cement dust from getting inside. This firm barrier keeps the bearings clean, which has a direct effect on how long mixers last in stationary concrete plants that handle high volumes.
As one of the key shaft sealing group components on SICOMA MAO 3000/2000 mixers, it directly supports long-term bearing reliability.
Specs: PA084 120×160×13 TC oil seal MAO 3000/2000
This PA084 TC oil seal is part of the wider range of SICOMA mixer spare parts used on heavy-duty twin-shaft concrete mixers in batching plants.
- Part code: PA084
- Application: SICOMA MAO 3000/2000 twin-shaft mixer (Bearing Support Group)
- Nominal dimensions: 120×160×13 mm
- Inner Diameter (ID): 120 mm
- Outer Diameter (OD): 160 mm
- Thickness: 13 mm
- Type: TC (Rubber Coated Double Lip) – Features a main sealing lip with a spring and an auxiliary dust lip.
- Material: NBR (Nitrile Rubber) – Optimized for compatibility with mineral-based mixer greases.
Abbreviations: TC double lip oil seal, NBR rubber
- TC: Double Lip Seal (Main lip + Dust lip)
- NBR: Nitrile Rubber
Why PA084 oil seal replacement matters to bearings
The effectiveness of the shaft protection relies on the elasticity of the lips. When wear, hardening, or damage collapses the sealing barrier:
- The grease barrier is progressively lost and can no longer protect the bearing.
- Water and cement slurry from the mixing chamber penetrate to reach the bearings.
- Contamination accelerates bearing wear, causing overheating and increased noise.
In practice, a failed PA084 inevitably leads to unplanned downtime and costly repairs for the entire mixing unit if not addressed immediately.
Check before ordering PA084 for SICOMA MAO mixers
The PA084 is engineered specifically for SICOMA MAO revisions requiring a 120 mm shaft and a 160 mm housing bore.,
- Compatibility Alert: It is not interchangeable with 0228G0001B2 which shares the 120 mm shaft diameter but fits a smaller 140 mm housing bore.
- Recommendation: Verification of the dimensions (120x160x13) and the "TC" marking on the existing seal against your parts list is mandatory for correct identification.
Installation: fit PA084 oil seal on SICOMA MAO
- The seal must be driven into the bore perfectly parallel, never entering at an angle (axial misalignment risk).
- Ensure the shaft sleeve surface is free of burrs that could slice the wide seal lip.
- Generous greasing of the lip and spring area prior to assembly is a prerequisite for safe start-up.
For safety-critical or high-duty mixers, PA084 should be installed by a qualified maintenance technician or authorised service partner.
Delivery Time:
- If the product is not in stock, it is delivered to order, usually within 4-6 weeks after making an advance payment.
- Some items may be in transit, so checking the delivery time before ordering is recommended.
Commercial Note:
All quotations and proforma invoices for this item are issued in EURO (EUR). Please request a formal offer for current pricing and lead times.