Patent ID: 8147005

Claim:
A wheel assembly comprising: a wheel including a sleeve bore; and a hub assembly mounted in the wheel, the hub assembly including: a retainer housing including: a wheel mounting sleeve including an axle bore configured to receive an axle and configured to be inserted within the sleeve bore of the wheel; and a pin sleeve including a first end, a second end, and a conduit between the first end and the second end, the first end in fluid communication with the sleeve bore, the first end including a shoulder extending into the conduit; a retaining member disposed within the conduit of the pin sleeve, the retaining member including a lip wider than the shoulder, the lip and the shoulder interacting to prevent the retaining member from exiting the first end of the pin sleeve; a biasing element disposed within the conduit of the pin sleeve and configured to bias the retaining member towards the axle bore, the retaining member configured to operatively engage a groove in an axle; and a restraining element comprising a plug mechanically coupled to the second end of the pin sleeve, the restraining element configured to prevent the retaining member from exiting the second end of the pin sleeve at least prior to mounting the hub assembly in the wheel.