Systems and methods for improved trailer jack wheel assemblies

A trailer jack, comprising:

• a trailer end configured to be coupled to a trailer;
• a wheel end;
• a shaft extending from the trailer end to the wheel end;
• and
• a wheel assembly coupled to the wheel end of the trailer jack and having:
• an outer shell defining a main volume,
• a main ball configured to be at least partially contained within the main volume of the outer shell and to contact a ground surface,
• a bearing coupled between the main ball and the outer shell and configured to allow motion of the main ball relative to the outer shell,
• a lock configured to retain the main ball in place relative to the outer shell,
• a coupler configured to couple the outer shell to the shaft and having an annular body defining a cavity that is configured to receive the shaft of the trailer jack to couple the wheel assembly to the shaft.

A wheel assembly for use with a trailer jack, the wheel assembly comprising:

• an outer shell defining a main volume;
• a main ball configured to be at least partially contained within the main volume of the outer shell and to contact a ground surface;
• a bearing coupled between the main ball and the outer shell and configured to allow motion of the main ball relative to the outer shell;
• a coupler configured to couple the outer shell to a shaft of a trailer jack, the coupler including an annular body defining a cavity within the annular body that is configured to receive a shaft of the trailer jack to couple the wheel assembly to the trailer jack;
• and
• a lock configured to retain the main ball in place relative to the outer shell,
• wherein at least one of the coupler or the outer shell includes a stop configured to be located between the cavity of the annular body and the main volume of the outer shell to reduce the likelihood of contact between the main ball and the shaft of the trailer jack.