Product Name: rubber sliding hanger roller for flat track

Detail's picture:

Features:

• High load, High Tear Resistance, Abrasion resistent                                         
• High load bearing capacity
• Low compression set
• Non-marking
• Oil and grease resistant
• High tensile strength
• Cut and tear resistant
• excellent rolling resistance
• Extreme resistance to chipping and chucking whilst maintaining high stability for safety and performance
• 

Our company can also custom make rollers.  For example, the following products :

We can provide:

• Assistance from first idea through prototype
• Quick delivery of prototypes or production needs
• Design assistance and parts consolidation
• In-house mold design (Insert, polyurethane, urethane molding)
• In-house formulations to provide the best possible urethane for your application
• Low-cost tooling
• over 10years   

About wheel package, Normally we pack then into wooden case, and then put case on the pallet.The complete package is like below image, it is very safe when ship by sea or by air.