Large gear is antibacklash gear
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes gear subassembly, speed decreaser.
Classification: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
NSN 5930-00-999-2593
NSN 6105-01-145-7360
NSN 6130-00-292-5058
NSN 5905-00-993-1832
NSN 5935-00-726-3440
NSN 6620-00-629-3862
NSN 5935-01-055-1028
NSN 5930-00-297-2520
NSN 5998-01-281-2084
NSN 6150-00-693-4818
NSN 4140-01-361-5876
NSN 5945-00-590-8636