Multiquip 21801 Tapered Roller Bearing Set SKF 33109/Q

The Multiquip 21801 Tapered Roller Bearing Set SKF 33109/Q is a genuine OEM component designed for Whiteman and International ride-on power trowels, including the HHXDF4-DF5, HHNG5, EHHNK5, HHXD5, HHN34TVD, HHXG5, HHXD5-ES, and HHN31V series machines. Sourced directly from Multiquip, this bearing set carries the SKF 33109/Q specification, ensuring the exacting tolerances required for smooth, consistent trowel operation. It is a direct drop-in replacement that installs exactly as the original, with no adaptation required to match the OEM mounting configuration. Keeping the correct bearing set in service is critical to maintaining blade pitch control and drivetrain integrity on high-cycle finishing equipment.

Key Features

• OEM-Grade Tapered Roller Precision — Manufactured to SKF 33109/Q specification, delivering the radial and axial load tolerancing this trowel drivetrain demands.
• Direct OEM Replacement — Part 21801 installs directly into the original bearing seat with no reworking of housings or shafts.
• Broad Whiteman Trowel Compatibility — Confirmed fitment across HHXDF4-DF5, HHXD5, HHXD5-ES, HHXG5, HHNG5, HHN34TVD, HHN31V, and EHHNK5 ride-on trowels.
• Drivetrain Stability Under Load — A correctly seated tapered roller bearing maintains shaft alignment and absorbs combined loads, preventing premature wear on adjacent gearbox components.
• Genuine Multiquip Part — Supplied as an authentic OEM component, so fitment, part number, and specification are verified against the original engineering documentation.

A tapered roller bearing is engineered to handle both radial loads — forces pushing perpendicular to the shaft — and axial (thrust) loads running along the shaft's length simultaneously. In a ride-on power trowel, these bearings support rotating shafts inside the gearbox and rotor assemblies, keeping components aligned under the constant dynamic forces generated during concrete finishing. When a tapered roller bearing wears or loses its preload, the shaft develops play, which causes vibration, accelerated gear wear, and loss of precise blade pitch control. Replacing the bearing set with the correct SKF 33109/Q specification restores the tight tolerances the drivetrain depends on for consistent performance across a full finishing pass.

DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming this part fits your specific machine, contact our parts team with your model and serial number before ordering.

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.