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      Rubber screw
      
    
      Home > Product > Rubber screw > 
      
    

      

      
    

      



      
    
      
        
      Rubber screw
      
        
      
            
      Rubber screw
      
            
        
	
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			Specifications:
        
		
        
			 
        
		
        
			Rubber pin screw barrel diameter: Φ 75mm - Φ 200mm
        
		
        
			 
        
		
        
			Rubber cold and hot feeding screw barrel diameter: Φ 30mm - Φ 300mm
        
		
        
			 
        
		
        
			Aspect ratio: 12-18
        
		
        
			 
        
		
        
			 
        
		
        
			 
        
		
        
			Substrate material:
        
		
        
			 
        
		
        
			1)38CrMoAlA(JIS SACM645)
        
		
        
			 
        
		
        
			2)42CrMo(AISI 4140)
        
		
        
			 
        
		
        
			3)4Cr5MoSi V1 (JIS SKD-61)
        
		
        
			 
        
		
        
			 
        
		
        
			 
        
		
        
			Treatment process:
        
		
        
			 
        
		
        
			heat treatment
        
		
        
			 
        
		
        
			Nitriding treatment
        
		
        
			 
        
		
        
			 
        
		
        
			 
        
		
        
			Technical parameters:
        
		
        
			 
        
		
        
			Nitriding depth: 0.50mm-0.80mm
        
		
        
			 
        
		
        
			Nitriding hardness: 900-1000hv
        
		
        
			 
        
		
        
			Nitriding brittleness: < = grade 1
        
		
        
			 
        
		
        
			Surface roughness: RA 0.4
        
		
        
			 
        
		
        
			Screw straightness: 0.015mm
        
		
        
			 
        
		
        
			Hardness of surface chromium plating after nitriding: ≥ 950hv
        
		
        
			 
        
		
        
			Thickness of chromium plating layer: 0.025 ~ 0.085mm
        
		
        
			 
        
		
        
			Double alloy depth: 3mm
        
	
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