Product Description
Caster assy
Frequently Asked Questions
Q: What trucks does the SU STR1638 caster assembly fit?
A: The SU STR1638 is used on Hyster and Jungheinrich electric lift trucks from the late 2000s through 2015. Verify your truck nameplate and compare serial number ranges with our product specs. We can confirm fitment if you provide your exact model designation.
Q: Is the SU STR1638 interchangeable with other caster models?
A: No. The SU STR1638 is specific to its mounting interface and bearing pocket dimensions. Do not attempt to substitute other caster models. Using the wrong caster may cause misalignment, premature wear, and loss of truck stability.
Q: How long does the SU STR1638 caster assembly typically last?
A: Under normal warehouse conditions with regular maintenance, the SU STR1638 will last 3 to 5 years or approximately 10,000 operating hours before bearings show significant wear. Heavy use on rough concrete or inadequate greasing shortens this lifespan significantly.
Q: What lubrication does the SU STR1638 require?
A: The SU STR1638 has sealed roller bearings that require minimal maintenance. Do not attempt to grease sealed bearings, as forcing grease past the seals will cause failure. Replace the entire caster assembly when bearings wear out.
Q: Can the wheel be replaced separately from the SU STR1638?
A: No. The wheel is integrated into the sealed bearing cartridge design. When the wheel wears or the bearings fail, the entire caster assembly must be replaced. Attempting to rebuild or service the internal components will void any remaining warranty.