Turner Pillow Block - 1-15/16" Bore, Set Screw Locking Collar - L3 Heavy-Duty Seal Poly Chain GT Carbon Extended What does the 5M in

What does the 5M in 2000-5M-15 mean

The 12/B80 has a 21/32" width

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531 in Sheave Angle 40° Number of Bands 3 Length 118 in (Outside Circumference) Construction EPDM / Synthetic Rubber

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Turner Pillow Block - 1-15/16" Bore, Set Screw Locking Collar - L3 Heavy-Duty Seal Poly Chain GT Carbon Extended What does the 5M inThe Turner UCP210 31 L3 is a 2 bolt pillow block mounted bearing unit with a 1 15 16" bore. It features a UC series insert with set screw locking in a cast iron housing. This unit includes enhanced sealing for extended service life. Product Specifications Bore Size 1 15 16" Housing Style 2 Bolt Pillow Block Insert Series UC Shaft Attachment Set Screw Housing Material Cast Iron Bearing Type Ball Bearing Lubrication Seal L3 Heavy Duty Dynamic Load