Johnson 6:1 reduction bearing unit

[KC9QQM]

Hi All,

I have a FT-101e and the reduction device on the preselector is no longer working smoothly. It will sometimes slips and other times turns the inner shaft at the same rate as the outer.

Is there still a source for these new or do I need to look at eBay or a hamfest to get one?

73
Jeff
KC9QQM

[KC9QQM]

Did a quick search of things myself and found it is a jackson 6:1 vernier ball bearing 4511DAF. Ordered it from Surplus Supply of Nebraska.

Jeff

[KG6YV]

Make sure you buy the reduction drive with the collar that has the two holes for the set screws that mount the frequency dial.  Some don't have it....

Greg

[W9GB]

Jackson Brothers (UK) is still in business and making reduction drives (Metric and English)
http://www.mainlinegroup.co.uk/jacksonbrothers/index.htm

Orem Elliott Products (USA, Ohio) makes and sells planetary drives.
http://www.orenelliottproducts.com/planetar.htm

Shop around for BEST prices, Bob Grinnell at Surpkus Sales of Nebraska is not a price discounter.

[KC9QQM]

Thanks for the replies, yes the one I bought and got in yesterday has that front brass ring with the 2 thumb screws. Will be putting it in tonight and hopefully be able to get tuned up a bit quicker!!

Jeff

[K4DPK]

Don't throw the old one away.

If you are careful you can use pliers and pinch the little tabs that hold the two shell halves together, which increases friction between the bass and the race.  Usually, that'll fix them.

Phil C. Sr.
k4dpk

[G3RZP]

When you consider those came out before WW2, it's somewhat surprising that they are still made. Shows that a good design  can last.....

[K0IZ]

Thanks for very interesting link to Jackson Brothers.  I enjoyed reading their history.