Product Description
Crown CR 73830 is a precision ball bearing for manual pallet jack steer and load wheels, rated for Crown PTH Series jacks up to 5,000 lbs. High carbon chromium steel construction with double rubber seals and factory lubrication provides reliable, corrosion-resistant performance in warehouse environments. Direct replacement for heavy-duty material handling operations.
Specifications
Material & Construction
| Material Specification | High carbon chromium steel (bearing-grade) |
Dimensions & Performance
| Bore Diameter | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Load Capacity | 5,000 lbs |
| Seal Type | Double rubber seals (2RS) |
| Lubrication | Factory pre-lubricated |
| Corrosion Resistance | High carbon chromium steel engineered for warehouse environments |
Part Numbers
| Manufacturer Part Number | CR 73830 |
| Direct Replacement for | CR 73830 |
Frequently Asked Questions
Q: What manual pallet jacks use the CR 73830 bearing?
A: CR 73830 is an OEM Crown precision ball bearing rated for the PTH Series manual pallet jacks up to 5,000 lbs load capacity. This bearing fits both steer wheel and load wheel assemblies in these jacks. If your equipment is not a Crown PTH Series model, verify the bearing dimensions (20 mm bore x 47 mm OD x 14 mm width) against your jack documentation before ordering.
Q: What are the exact dimensions and specifications of CR 73830?
A: CR 73830 specifications: 20 mm bore diameter, 47 mm outer diameter, 14 mm width, high carbon chromium steel construction, double rubber seals (2RS design), and factory pre-lubrication. These dimensions are industry-standard for precision ball bearings in manual material handling equipment. The 2RS seals provide protection against dust and moisture ingress while retaining factory grease.
Q: Can CR 73830 bearings be used on other manual pallet jack brands?
A: CR 73830 is optimized for Crown PTH Series jacks but may fit other manual pallet jacks with identical bearing cavity dimensions. Compatible OEM brands that use 20 mm x 47 mm x 14 mm bearings include Toyota, Raymond, Yale, and Hyster models. Always verify bearing cavity specifications on your equipment before substituting. Do not assume compatibility based on manufacturer alone.
Q: How long does CR 73830 last in typical warehouse conditions?
A: Under normal operation with proper load management (staying within 5,000 lbs rating), CR 73830 bearings typically provide 3-7 years of service life. Lifespan depends on operational intensity, floor conditions (smooth vs. rough concrete), storage temperature, and whether the jack is used indoors or outdoors. Wet or salt environments may reduce lifespan. Replace if you detect grinding noise, vibration, or wheel resistance.
Q: What maintenance does CR 73830 require?
A: CR 73830 arrives with factory lubrication and sealed double rubber seals. Sealed bearings require minimal maintenance, do not remove seals or attempt relubrication. Periodically inspect wheels for smooth rotation and listen for noise. Replace the bearing if it exhibits metal grinding sounds, wobbling, or rough turning. Do not attempt to clean bearings with water or solvents as this damages seals.
Q: Is CR 73830 corrosion-resistant?
A: Yes, CR 73830 is constructed from high carbon chromium steel engineered for corrosion resistance in warehouse environments, including exposure to moisture, concrete dust, and mild salt spray. The double rubber seals protect against contamination that could trigger oxidation. For extended outdoor storage or coastal environments with high salt exposure, monitor the bearing for surface corrosion and replace if rust develops on races.
