BEI Motion Systems Co. rotary encoder.Specifications:Part Number: M25D-X-HSS4096G-XD3-X-S-C14-S-5Shaft Diameter: 3/8"Condition: NOS (new old stock)BEI Motion Systems M25D-X-HSS4096G-XD3-X-S-C14-S-5 EncoderSKU: B2$299.99PriceQuantity*Add to CartBuy Now