Double Nut Ballscrew 20mm DFU2005 RM2005 Length 21.65 inch / 550mm + Ball Screw Nut+ BK/BF15 Bearing Block End Supports+ Coupler+ Nut Housing+ Motor Bracket for Nema 34 Stepper Motor

Specifications: Brand: MssoommManufacturing Process: Rolled ThreadPrecision: C7 Grade, C5 (Grinding grade) is also available, please message usMaterial: GCr15 steelModel: DFU2005This item includes:1pcs Ball Screw DFU2005 RM2005 20mm Length 21.65 inch / 550mm (with standard end machining for BK/BF15) 1pcs Double Ballscrew Nut1Pcs BK15/BF15 End Supports, and Motor Bracket for Nema 34 stepper motor which integrated with BK with locknuts and circlips( The bearings in the BK bearing block support are deep groove ball bearings, if you need angular contact bearings, please tell us, which has a higher price )1Pcs Flexible Coupler ( The standard bore diameter of the coupler which matches the motor shaft is 8mm, if your motor shaft is other size, pls tell us ) 1Pcs Nut HousingLead Time: 7-10 Business Days except for for Chinese National Day holiday and Spring FestivalCustomizable Processing and Technical Support:1. We can provide any length that you want.2. If you need end machining according to your drawings, please tell usIntroduction and Application: Double ball nut designs produce preload in one of two ways: through tension between two single nuts, or through an offset in the lead of a single nut.1. The first method uses a spring or a spacer to create tension between two nuts that are mechanically coupled.During machining of the ball nut raceways, an offset is created in the lead, approximately halfway down the length of the nut body. This lead offset creates preload within the ball nut.Because there are no spacers or springs required, the lead offset method is more compact than a double nut design, but it reduces load capacity. With greater complexity and higher cost, double nut designs are typically used when high preload (7 percent or greater) is required.

• Ball screw diameter: 20mm; Lead / Pitch: 5mm; Total length: 21.65 inch / 550mm; Double Nut + BK15 integrate with Motor Bracket for stepper motor Nema 34 /BF15 End supports with locknuts and circlips + Flexible Coupling + Nut Housing. The lead time is 7-10 Business Days except for for Chinese National Day holiday and Spring Festival
• The product can ensure motor shaft, coupling axial, axial bearing hole, and screw axis all in a line strictly, to make the transmission system run more accurately and sturdily, less noise and longer wear life
• Double Nut Ball Screw assembles two inner-circulate nuts together, therefore reduces the backlash of ball screw. The stability is then enhanced and the accuracy is up to 5. This design is especially good for CNC machine centers
• No stick-slip effect, low friction, low operation noise, heats up less, reduce driving power required, and make service life longer
• Double nut ball screw model includes DFU1604, DFU1605, DFU2005, DFU2505, DFU2510, DFU3205, DFU3210, DFU4005, DFU4010, DFU5010, DFU6310, DFU8010; Ball screw nut, nut housing, coupling, ball screw support BK, BF, EK, EF, FK, FF and end machining service are available, please let us know