Product Description
SY25163 precision sealed bearing assembly engineered for manual pallet jack wheel hubs. Features 20 mm bore, 47 mm OD, and 14 mm width in SAE 52100 steel construction with integrated synthetic seals. Suitable for pallet truck models requiring a direct-fit 20 mm shaft bearing. Factory lubricated, non-serviceable design optimized for warehouse application durability.
Specifications
Part Numbers
| Manufacturer Part Number | SY25163 |
| OEM Part Number | SY25163 |
Performance Specifications
| Service Life | Rated for minimum 1 million revolutions under full load |
Frequently Asked Questions
Q: What are the bore and outer diameter specifications for the SY25163 bearing assembly?
A: The SY25163 has a 20 mm bore diameter, 47 mm outer diameter, and 14 mm width. These dimensions fit manual pallet jack wheel hubs requiring a direct 20 mm shaft bearing.
Q: What material is the SY25163 bearing made from?
A: The SY25163 bearing assembly is constructed from SAE 52100 steel, a high-carbon chromium alloy that provides hardness, wear resistance, and durability for warehouse equipment under load.
Q: Is the SY25163 bearing sealed and how is it lubricated?
A: The SY25163 features integrated synthetic seals and arrives factory lubricated. It is a non-serviceable design meaning it cannot be disassembled, cleaned, or relubricated in the field.
Q: What is the rated service life of the SY25163 bearing?
A: The SY25163 is rated for a minimum of 1 million revolutions under full load. Actual lifespan depends on load conditions, warehouse environment, and operating frequency.
Q: Which manual pallet jack brands use the SY25163 bearing assembly?
A: The SY25163 is compatible with manual pallet jack models from Crown, Toyota, Raymond, Yale, and other manufacturers that use 20 mm shaft wheel hubs. Verify your equipment bore diameter before ordering.
Q: What symptoms indicate the SY25163 bearing needs replacement?
A: Replace the bearing if wheels bind, make grinding or squealing noises, exhibit excessive side-to-side play, or show visible rust on outer races. Do not attempt to service the non-replaceable sealed bearing.