32AT10/1000US Timing Belt Round Belt What does the 8M in

What does the 8M in 1648-8M-50 mean

com/products/gates-bp63-predator-single-v-belt"

"name":"Gates QD1C20

com/products/bando-7pk920-automotive-micro-v-belt"

"sku":"10/A117-D&D"

32AT10/1000US Timing Belt Round Belt What does the 8M in32AT10 1000US Timing Belt The 32AT10 1000US is a timing belt from D&D Global's Dura Absolute Torque Urethane Steel At10 Series line. It transmits power positively with no slip, holding timing between shafts on synchronous drives. Specification Value Part Number 32AT10 1000US Belt Type Timing Belt Tooth Profile AT10US T AT metric Tooth Pitch 10 mm Number of Teeth 100 Belt Width 32 mm Pitch Length 1000 mm (Pitch Length) Construction Polyurethane, Steel