描述
Precision Is Not a Feature. It Is the Price of Admission.
A machine tool is only as accurate as the line it travels on. Slop in the drive train does not stay in the drive train; it shows up in every cut, every pocket and every finished surface, and no amount of tuning downstream can put back what the axis never had. The Guided Line is the SFU1605 set built for that axis: a rolled RM1605 ball screw, diameter 16 mm, C7 tolerance class, delivered with its ends already machined so it drops into the bearing blocks rather than waiting on a lathe.
The set is complete, which is the part most suppliers quietly leave out. You get the 1605 ball nut, the nut housing, the BK/BF12 support blocks and a coupler, so the assembly is a bolting job rather than a scavenger hunt through three separate orders. The screw is turned from high-quality steel and case hardened, giving it high load-carrying capacity with the stiffness and accuracy that separates a machine that repeats from one that merely moves.
Available across a wide range of overall lengths from 250 mm up to 1500 mm, all inclusive of the machined end sections, with custom lengths available on request.
An axis is not built from parts. It is built from the tolerance between them.
Key Features
- ✦ Genuine SFU1605 / RM1605 rolled ball screw, 16 mm diameter
- ✦ C7 tolerance class with ends already machined
- ✦ Complete set: ball nut, nut housing, BK/BF12 supports and coupler
- ✦ High-quality steel, case hardened for wear resistance
- ✦ High load-carrying capacity with high stiffness
- ✦ Smooth, quiet running for precise axis motion
- ✦ Lengths from 250 mm to 1500 mm, custom lengths on request
Technical Specifications
- Brand: CNCCANEN
- Model: SFU1605 / RM1605
- Screw Diameter: 16 mm
- Lead: 5 mm
- Tolerance Class: C7 (rolled)
- End Machining: Pre-machined, ready to fit
- Ball Nut: 1605 ball nut included
- Nut Housing: Included
- Support Blocks: BK/BF12 included
- Coupler: Included
- Material: High-quality steel, case hardened
- Overall Lengths: 250, 300, 350, 400, 500, 600, 650, 700, 800, 1000, 1050, 1150, 1200, 1500 mm (incl. machined ends)
- Custom Lengths: Available on request
Where It Belongs
The Guided Line belongs wherever an axis has to repeat. It is the muscle behind DIY and production CNC router builds, laser cutter gantries, 3D printer Z-axes being upgraded away from lead screws, plasma table drives, and the motion stages of pick-and-place and inspection equipment. It suits the builder retrofitting a flexible machine for accuracy, and equally the shop maintaining a production axis that needs a like-for-like replacement without waiting on a custom machining lead time. If the requirement is repeatability under load rather than merely movement, this is the correct line to build it on.
Frequently Asked Questions
Q: What exactly is included in the set?
The rolled RM1605 ball screw with its ends already machined, the matching 1605 ball nut, a nut housing, the BK/BF12 support blocks and a coupler. It is a complete drive assembly rather than just a screw.
Q: What does the C7 tolerance class mean for my machine?
C7 is a rolled-screw tolerance class suited to general CNC motion, router gantries, plasma tables, printer Z-axes and similar axes where repeatability matters. It is the standard choice for accurate but cost-conscious machine building.
Q: Do I need to machine the ends myself?
No. The screw arrives with its ends already machined to suit the supplied support blocks, which removes the lathe work that usually delays an axis build.
Q: How do I choose the right length?
Lengths run from 250 mm to 1500 mm and are quoted as overall length including the machined end sections. Measure the travel you need plus the support and coupling allowance, then pick the nearest standard length. Custom lengths can be requested.
Q: Is the screw hardened?
Yes. It is produced from high-quality steel and case hardened, which is what gives it high load-carrying capacity along with the stiffness and wear resistance an axis needs.
Q: Will it run quietly?
The ball nut recirculates through smooth bearings rather than sliding, so motion is characteristically smooth and quiet compared with a lead screw, particularly at the higher speeds a CNC axis runs at.
Q: What lead does the SFU1605 use?
The 1605 designation means a 16 mm screw diameter with a 5 mm lead per revolution. That combination is the standard choice for accurate positioning at moderate speed, and it is what makes the set suitable for router, laser and printer axes.
Q: Is the ball nut preloaded?
The set is supplied as a standard C7 rolled assembly, which is the correct specification for general CNC motion. If your application needs backlash tighter than the standard rolled class provides, a matched preload arrangement can be discussed separately.
Q: Can I order a length that is not listed?
Standard overall lengths run from 250 mm to 1500 mm, and custom lengths can be produced on request. If your axis falls between the listed sizes, contact us with the required overall length including the machined ends and we will confirm availability.
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