A1352 Mackay 1712 Dunbier Bearing Set Slimline & Two-Part Seal | Marine Trailer Part

🔧 Product Description

Genuine Mackay Marine Trailer Products Slimline Marine Bearing Set with Two-Part Seal – Part Number: A1352

A Slimline/Ford-style bearing set for compatible 45mm square and selected 50mm axle hubs.

⚙️ Key Features

• Complete wheel-bearing service set for one hub
• Tapered roller bearings support radial and thrust loads
• Marine two-part seal helps limit water entry and grease loss
• Suitable for scheduled maintenance or hub repair
• Allows the original hub to be retained when serviceable

📏 Specifications

• Bearing configuration: Inner L68149/L68110 and outer LM12749/LM12710
• Seal type: Two-part Slimline marine grease seal
• Tapered bearing cups and cones must be replaced as matched sets
• Bearing numbers engraved on the removed components remain the primary fitment check

📋 Supplied Components

• 1 × L68149/L68110 inner set
• 1 × LM12749/LM12710 outer set
• 1 × Two-part marine seal

🔄 Cross Reference & Related Parts

• Dunbier cross reference: 1712
• Slimline two-part seal pair: Mackay A1355 / Dunbier 1716S

🚤 Compatibility & Application

• Slimline-bearing trailer hubs on compatible 45mm square and selected 50mm axle stubs
• Clean and inspect the stub-axle journals, hub bores and seal surface before installation
• Pack bearings fully with compatible marine wheel-bearing grease
• Set axle-nut preload so the hub rotates freely without measurable looseness
• Fit a new split pin and dust cap after adjustment

🔌 Function

Supports smooth wheel rotation on the axle stub while the seal retains grease and limits water contamination.

⚠️ Common Signs of Failure

• Bearing is noisy, rough, overheated or discoloured
• Wheel has excessive end play
• Races are pitted, flaked or scored
• Grease is milky or contaminated with water
• Seal leaks or no longer grips the axle sealing surface

📦 Condition

• Genuine Mackay Marine Trailer Products part
• Brand new
• Supplied in original or equivalent packaging