Reply to "Gear for lionel model 2055"

David JohnstonOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

The change from the 14.5 degree pressure angle to the 20 degree pressure occurred industry wide in the middle of the 20th century. The 20 degree pressure angle gears have a stronger tooth, but are noisier. The important thing is that mixing gears with the two different pressure angles probably will not work well. Today if you order a gear, it should be supplied with the 20 degree pressure angle unless something else is specified.

12/17/182:21 AM

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