Diagram of the working principle of the ball screw The ball screw pair is to place an appropriate amount of rolling elements between the screw and the screw groove of the nut as an intermediate transmission body, and with the help of the ball return device, it constitutes a screw drive mechanism in which the ball circulates infinitely in a closed loop. As shown in the following figure. When the screw or nut turns, the ball is pushed to form a repeated cyclic movement of the ball chain in a closed circuit Feature 1. Space saving nternal circulate design 2. Low friction force with 1/3 over acme screw 3. Ensure for high accuracies 4. Micro feed with tolerance within in 0.1μm 5. Zero backlash, high stiffness. Model SFU 1610 Material S55CM,SCM420H Process Rolled thread and Milled thread Available material Chrome steel,Stainless steel Model Number SFU(single nut),DFU(double nuts),SFE(long lead) series,etc. Thread type usually right thread, some can be left thread Our services According to drawings or samples to manufacture products,or provide the model number of supports,then we can confirm the end machined type. Features High reliability Smooth operation High rigidity and preload High durability Production proces 1.According to the quantity and the ship method of your order, we will choose the best packing ways. 2.For example, if the products shipped by TNT,DHL,FedEx, the goods would be packed by paper carton for economic delivery. As bulk order shipped by sea, the goods would be packed by wooden carton. DO NOT worry about PRICE, we are manufacturer . DO NOT worry about QUALITY, we have 16 years experience . DO NOT worry about AFTER-SALES, we are 24 hours online . Q1:Who we are? We are the factory based in Zhejiang,China,start from 2007 sell to all over the.world. the factory area is around 45000 square meters.we have 900 employees. Q2: Do you have a catalogue? Can you send me the catalogue to have a check of all your products? A: Yes , We have product catalogue.Please contact us on line or send an Email to sending the catalogue. Q3: I can't find the product on your catalogue, can you make this product for me? A: Our catalogue shows most of our products,but not all.So just let us know what product do you need. Q4 : Can you make customized products and customized packing? A: Yes.We made a lot of customized products for our customer before.And we have many moulds for our customers already.About customized packing,we can put your Logo or other info on the packing.There is no problem. Q5: Can you provide samples ? Are the samples free ? A: Yes,we can provide samples.Normally,we provide 1-2pcs free samples for test or quality checking.But you have to pay for the shipping cos.If you need many items, or need more qty for each item,we will charge for the samples. Any requirements or question,Welcome to "Send" us an e-mail Now! It's our great honor to do services for you! You also can get the FREE SAMPLES soon.