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The TRITAN 5203 ZZ is a double-row angular contact ball bearing designed for applications that require the simultaneous handling of radial and axial loads. It features a 17 mm bore diameter, a 40 mm outside diameter, and an overall width of 17.5 mm. The 25-degree contact angle allows the bearing to absorb combined loading efficiently, making it well suited for moderate-speed shaft arrangements where axial thrust is a consistent factor. A polyamide cage and steel ball construction provide reliable performance across a broad range of mechanical operating conditions. Grease lubrication is factory applied, and the double-shield configuration retains lubricant while blocking contaminant ingress. Licensed HVAC, mechanical, and industrial equipment technicians commonly install this bearing in motor and blower shaft assemblies.
This bearing is appropriate for residential and light commercial mechanical systems where double-row radial and axial load support is required. Typical installation scenarios include electric motor shaft support, pump assemblies, fan drive shafts, and other rotating equipment that generates combined thrust and radial forces. The 5200-series designation places it in a standard metric double-row family widely encountered in HVAC blower motors, compressor accessory drives, and general rotating machinery. The ABEC-1 tolerance class suits general industrial and HVAC equipment applications rather than high-precision machine-tool spindles.
Designed as an OEM-style replacement for double-row angular contact ball bearings in the 5200 series with a 17 mm bore, 40 mm outside diameter, and 17.5 mm width. Confirm bore diameter, outside diameter, width, and contact angle against the original bearing specification before installation.
Installation should be performed by a qualified mechanical or HVAC technician. De-energize and lock out all power to the equipment before removing the existing bearing. Use a proper bearing press or puller to avoid applying installation force through the rolling elements, which can damage the raceway and cage. Do not mix this grease-lubricated bearing with incompatible lubricants; adding outside grease without confirming compatibility can degrade the factory fill.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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