Best mechanical rack & pinion gears according to redditors

We found 2 Reddit comment discussing the best mechanical rack & pinion gears. We ranked the 2 resulting products by number of redditors who mentioned them. Here are the top 20.

1. Martin Gear Rack, 14.5 Degree Pressure Angle, 6 feet Long, High Alloy Steel, Inch

1 mention
Martin Gear Rack, 14.5 Degree Pressure Angle, 6 feet Long, High Alloy Steel, Inch
Gear rack for use with spur gear pinion to convert rotary motion into linear motionHigh alloy steel for strength and durabilityPressure angle of 14.5 degrees for smoother, quieter movement and lower frictional forcesRack length sized for up to 6' of linear movement from rotary motionMeets AGMA comme...
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2. Boston Gear L20206 Rack Gear, 20 Degree Pressure Angle, 20 Pitch, 6.0 feet long, Steel

1 mention
Boston Gear L20206 Rack Gear, 20 Degree Pressure Angle, 20 Pitch, 6.0 feet long, Steel
Gear rack for use with spur gear pinion (not included) to convert rotary motion into linear motionHigh alloy steel for strength and durability20 degree pressure angle for higher load-carrying capacity than 14.5 degree pressure angle6' long, 20 teeth per foot0.50" face width and 0.50" overall rack th...
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Top Reddit comments about Mechanical Rack & Pinion Gears:

u/blargh12312312312312 ยท 1 pointr/CNC

That's an interesting concept. I wonder how I'd attach something like this to my rails. This requires more research.

I don't really know much about gears (or rack and pinion). Anyone care to offer advice on pitch, pressure angle, or whatever, for this purpose? It looks at a glance like Amazon has some options, though they're a bit expensive. This might be a future upgrade.

http://www.amazon.com/Boston-Gear-L20206-Degree-Pressure/dp/B004N630GI/ref=sr_1_4?s=industrial&ie=UTF8&qid=1451405391&sr=1-4&keywords=rack+and+pinion

http://www.amazon.com/Martin-14-5%C2%B0-Pressure-Angle-Backing/dp/B0051V9MH0/ref=sr_1_4?s=industrial&ie=UTF8&qid=1451405692&sr=1-4&keywords=rack+and+pinion&refinements=p_n_availability%3A1248818011%2Cp_89%3AMartin