Product Description
BEARING ASSY (SINGLE SHIELD)-10 PER SLEEVE, 250 PER BOX
Frequently Asked Questions
Q: What does single shield mean on the 00591-30386-81 bearing assembly?
A: Single shield means the bearing has a protective cover on one side to reduce dust and moisture entry, while the other side remains open. This design balances contamination protection with lubrication access for pump rod applications. Use single-shield bearings in normal warehouse conditions where some moisture exposure is possible but extreme contamination is not expected.
Q: How does the 00591-30386-81 perform in cold storage and wet environments?
A: The single shield provides adequate protection for cold storage pallet jacks operating at temperatures above 20 degrees Fahrenheit. In wet dock or outdoor environments, this bearing still offers reasonable protection compared to open assemblies. For extreme wet conditions, consider double-sealed or grease-packed variants instead.
Q: What is the installation difference between the 00591-30386-81 and unsealed bearing assemblies?
A: Installation procedure is identical. Press the bearing straight onto the pump rod shaft until it seats fully. The shield sits on the outside and does not interfere with the installation process. Ensure the shield faces away from the pump rod to maximize protection of the bearing race.
Q: Does the 00591-30386-81 single shield reduce bearing life compared to double-sealed models?
A: No, if installed in an appropriate environment. Single-shield bearings provide equivalent life to double-sealed bearings in normal indoor warehouse use. However, in harsh wet or freezing conditions, double-sealed variants extend life by 30 to 40 percent. Select the shield style based on your primary operating location.
Q: Can I replace a failed unsealed bearing with the 00591-30386-81 single-shield assembly?
A: Yes, this is a direct upgrade. The single shield improves durability without changing pump performance or installation fit. This substitution is recommended if you want to reduce future bearing failure rates, especially if moisture or humidity contributed to the original failure.
Q: Why is the 00591-30386-81 packaged as 10 per sleeve and 250 per box?
A: The 250-count box reflects the larger number of single-shield variants typically stocked by fleet operators due to their improved durability. The 10-sleeve format supports individual technicians performing ad hoc repairs. For high-volume operations, the 250-count box offers the best per-unit cost.