Anti-wind cover: to avoid winding shaft and other materials and the clearance between the wheel and stents, to rotate the wheels can be flexible.
Sealing ring: avoid steering bearings or single wheel bearings into the dust, and to maintain its lubricity, facilitate flexible rotation.
Steering lock: through the spring bolt locking steering bearings, can lock for fixed castor castor, the activity is a multi-purpose ah.
Brake system: installed in the wheel shaft sleeve, or on the tire surface, with the hand or foot operated brake device.
Double brake system: as well as locking steering device can be fixed wheel brake system.
Brace: installed in the transport plane, can make its fixed at a particular location on the device.
Other: including steering arm, leverage, MATS and other parts that are used for specific locking.