Wacker Neuson 5000065842 Cylindrical Roller Bearing NJ2205

The Wacker Neuson is a genuine OEM Cylindrical Roller Bearing NJ2205 designed for the AR series external concrete vibrators, including the AR 51, AR 52, AR 53, AR 54, AR 41, AR 42, AR 43, AR 44, AR 61, AR 62, AR 63, and AR 64 model families, as well as the AP1840 and AP1850 battery-powered vibratory plate series. As a direct Wacker Neuson OEM component, part is manufactured to the exact dimensional and load-rating tolerances required by these high-cycle electric vibrators. With an exceptionally broad fitment range covering dozens of AR series variants across multiple voltage and frequency configurations, this bearing is a go-to service part for contractors and dealers maintaining Wacker Neuson external vibrator fleets.

Key Features

• OEM-Matched Radial Load Capacity — Sourced directly from Wacker Neuson, this NJ2205 cylindrical roller bearing meets the precise radial load ratings and internal clearance specifications required by AR series external vibrator rotors operating under continuous eccentric-mass loading.
• Drop-In Shaft Fitment — The NJ2205 profile mates directly to the vibrator rotor shaft and housing bore without machining or adaptation, maintaining correct axial location on reassembly.
• Broad AR Series Compatibility — Fits AR 41, AR 42, AR 43, AR 44, AR 51, AR 52, AR 53, AR 54, AR 61, AR 62, AR 63, and AR 64 external vibrators across a wide range of voltage, frequency, and rpm configurations, plus AP1840 and AP1850 vibratory plates.
• Sustains Full Vibration Output — A worn or seized bearing causes loss of centrifugal force, uneven concrete consolidation, and accelerated rotor damage. A correctly functioning bearing keeps the eccentric mass spinning freely at rated rpm for consistent compaction energy transfer into the concrete.
• Electrical Safety Relevance — External vibrators run continuously under electrical load; a failing bearing generates heat that can degrade motor windings. Replacing this bearing on schedule protects both the operator and the motor from heat-related failure.

The cylindrical roller bearing in a Wacker Neuson external concrete vibrator supports the spinning eccentric-mass rotor that generates the centrifugal vibration force transmitted into concrete formwork. Because external vibrators run at sustained high speed under continuous eccentric loading, this bearing endures significant radial stress in every operating cycle. When the bearing wears, it introduces rotor wobble and noise, reduces vibration amplitude at the form face, and — if left unaddressed — can seize and damage the motor shaft or housing bore, turning a low-cost bearing replacement into a major repair.

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.

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