BN20X4M Thomson Lead Screw-Lead Nut Only

Thomson BN20X4M Lead Nut Only, BN Style, 20 mm X 4 mm, Non-Preloaded, RH, SAE 660 bearing Bronze; For standard bronze nuts, BSA uses SAE 660 bearing bronze.; SAE 660 bearing bronze which provides excellent load carrying ability, good wear resistance and is less susceptible to damage from impact and shock loading.; BSA® precision lead screws are an excellent economical solution for your linear motion requirements. For more than 25 years, BSA has designed and manufactured the highest quality lead screw assemblies in the industry. Our precision rolling machines ensure accurate positioning to 0.003 in/ft.; Custom design services and fast prototyping available