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Guide Shaft Support Base Optical Axis Support Seat Round Flat Flange Optical Axis Mount 8 10 12 15 16 20 25 30 35 40 50 - Bearings - AliExpress
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Thomson Industries - 1-1/2″ Shaft Diam, 3″ Base Width, Steel Shaft, Aluminum Rail, Round Shaft Assemblies - 35523315 - MSC Industrial Supply
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