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        軸承
        

        
	
        
		
        
			
        
								
        
					
         
        TC軸承
        TC 軸承（硬質合金軸承）是石油勘探鉆井用螺桿動力鉆具中的重要的配件之一，它主要承受動力鉆具傳動軸在運轉過程中產生的徑向載荷，它的質量性能直接關系到鉆具整機壽命的高低。
        

        由dzla， 前 
        				
        
					
        
		
	
        
				
        
		
        
	
        
						
				
        
	
        

		
		








夜夜艹

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