This bearing is one of the most common thrust bearings found on units from the 1970's through the 1990's
It is found on units that have upper crank assemblies. In this instance the thrust bearing is found on the whiffle tree, riding on the thrust nut.
It's also on 3000 series direct drive crank assemblies. In this instance it is located at the back of the crank.
Most power lift models also use this bearing with a thrust nut.
The action of this bearing is a front load. It takes the pressure of the roof, easing lift. If the bearing is or has failed, the roof may be very difficult to raise.
Installation tip:Take note of the direction of the thrust bearing installed in the crank system. The thrust bearing needs to face in the proper direction for the system to operate correctly. If the bearing is installed backwards, the system will be difficult to crank. The proper installation has the open / smaller surface of the bearing facing against the base of the thrust nut. This allows it to spin freely when the system is compressed.
Measurements are 1-7/8" wide, 5/8" tall, 1" center.
Part number 4720A2421
Customer Reviews
Overall rating: 4.7 / 5 from 17 reviews.
Worked as it should fixed my hard cranking issue also lubed all pulleys
It is always a pleasure to order from colemanparts.com. I called them to make sure I order the correct parts, they were very helpful. Its nice to order with confidence.
Never thought this part would make so much difference. put the part in and you can turn the crank with one hand easily. Before that it was a double hander with all I had.
Right part for my 2007 Fleetwood Utah. Order the wrong bearing when I order the wiffletree and shear pins. Little pissed that they didn't question the order as the parts didn't go together, but in the end it was my fault. Shipped USPS which took over 7 days would be nice to have a UPS or FedEx button on website to expidite shipment. Never thought MD to NH would take that long
The part was perfect and Derek’s videos helped me determine the correct part for my trailer as well as how to install it. He even took the time to answer my question over the phone when I ran into a stubborn nut that wouldn’t come free. Excellent service from this outfit!
this thrust bearing was the wrong one. i was able to make it work with some mods. i wish i had a parts list / owners manual of what i bought. not your fault.
