Multiquip 12778 Flange Bearing

The Multiquip 12778 Flange Bearing is a genuine OEM component designed for a wide range of Whiteman and International walk-behind and ride-on power trowels, including JWN24HTCSL, LD60, LD6, LD6SL, HDA Series, J Series, B Series, BS Series, and JTO Series machines. As a direct OEM replacement, part 12778 is manufactured to the same specifications as the original, ensuring correct mounting geometry and load capacity for trowel drive systems. Whether you are servicing a walk-behind finishing trowel or a ride-on unit, this bearing is the correct part to restore proper operation. DHS Equipment stocks genuine Multiquip parts so you can get the right component and get back to work without compromise.

Key Features

• Genuine OEM Load Rating — Manufactured to the same radial and axial load tolerances as the original, ensuring the bearing handles the rotational stresses specific to trowel drive assemblies.
• Flange-Mount Design — The flanged housing allows the bearing to seat and bolt directly into the existing mounting points on compatible trowel frames without modification to the housing bore.
• Broad Trowel Compatibility — Fits JWN24HTCSL, LD60, LD6, LD6SL, HDA Series, J Series, B Series, JS Series, BS Series, JTO Series, and select International models.
• Supports Smooth Blade Rotation — A properly functioning flange bearing keeps trowel rotor shafts aligned and turning freely; a worn bearing causes vibration, uneven blade pitch, and accelerated wear on surrounding components.
• Verified OEM Part Number — Ordering by Multiquip part number 12778 confirms you are receiving the correct bearing for your machine, eliminating guesswork during service.

A flange bearing is a housed bearing unit with an integrated mounting flange that bolts directly to a structural surface, providing support and precise alignment for a rotating shaft. In a power trowel, flange bearings locate and support the rotor or gearbox shaft, absorbing the continuous radial loads generated during finishing passes on concrete. When a flange bearing wears out, the shaft loses alignment, leading to noticeable vibration, blade chatter, increased noise, and eventual damage to the gearbox or rotor assembly. Replacing a failed bearing promptly with the correct OEM part restores shaft concentricity and protects the surrounding drivetrain components from secondary wear.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.