Ball Screw End Support Service: Precision Units Built for Demanding Applications
YIDI Motion delivers custom and stock ball screw end supports—fixed side with angular contact bearings, floating side with deep groove options. OEM/ODM ready. Worldwide export from our Hebei factory.
Procurement Risks You Can't Ignore with Ball Screw End Supports
I've seen it too many times in this industry. A procurement manager orders what looks like a cheap ball screw end support unit from an unverified supplier. It arrives, gets bolted into a CNC machine or robotic arm, and within months, you're dealing with misalignment, excessive preload issues, or outright failure.
Why? Most off-the-shelf end supports from low-end factories skimp on bearing quality. Fixed ends need angular contact bearings—duplex pairs usually—to handle axial loads properly. Float ends get deep groove ball bearings for radial support. Get the tolerances wrong, and your ball screw starts whipping under load. Vibration creeps in. Precision drops.
Another trap: mismatched footprints. Your ball screw might be a rolled C7 grade, but the end support housing is machined for a precision ground SFU type. Bolts don't line up. Weeks lost on rework.
Lead times drag on too. Spot market suppliers promise 2 weeks, deliver in 8. Meanwhile, your production line idles. And don't get me started on hidden costs—import duties, freight surcharges, or non-compliance with RoHS if you're shipping to Europe.
We've handled returns from importers who skipped supplier vetting. Common story: housing material warps under heat cycles because it's pot metal, not proper aluminum alloy 6061-T6 or steel equivalents.
Here's the kicker. In high-cycle apps like automation lines, a bad end support accelerates ball screw wear. Replacements run $500-2000 each, plus downtime. Multiply by machine count. Risk adds up fast.
That's why smart buyers—like operations managers at US machine shops—insist on verified factory sources. Traceability on bearings (SKF, NSK brands we source). Full CAD drawings pre-shipment. Test reports for runout and preload.
Skip these steps? You're gambling with ROI. We've turned around desperate RFQs from guys who'd burned bridges with sketchy Alibaba sellers. Lesson learned.
Pro tip: Always ask for dynamic balance certification on the housing. Off-balance units amplify harmonics in high-speed spindles.
At YIDI Motion, our ball screw end support service starts with risk assessment. We map your setup—screw diameter, length, load vectors—and spec accordingly. No guesswork.
How Our Ball Screw End Support Service Solves It
Picture this: You're retrofitting a linear axis on a packaging machine. Need a fixed-end support for 25mm dia ball screw, taking 5kN thrust. Our service kicks off with your drawing or specs. We prototype in-house, using German-imported CNC grinders for housing bores.
Fixed units? We pair ABEC-5 angular contact bearings (preload C0 or C1). Preloaded duplex sets ensure zero axial play. Housing OD machined to h6 tolerance. Mounting holes tapped M6-M12, patterns match NSK/THK standards.
Floating ends simpler: Deep groove bearings, ID chamfered for easy screw insertion. Seals optional—labyrinth or contact—to keep grease in, contaminants out.
Customization is where we shine. Say you run tropical climates. We spec high-temp grease (up to 150°C). Or stainless housings for washdown environments. We've done electroplated versions for corrosive shops.
Service includes more than parts. We audit your current setup via photos or Zoom. Recommend preload adjustments. Supply torque specs for mounting bolts (e.g., 20Nm for M8 class 8.8).
Output? Units with <5µm runout TIR. Dynamic stiffness over 100N/µm. Tested on our Japan-sourced CMM machines. Full protocol included.
Buyers tell us this cuts commissioning time by days. One Midwest importer swapped our units into 50 axes—no failures after a year. That's real uptime.
Our edge: Integrated with full linear motion line. Ball screws, supports, nuts—all matched. No interface headaches.
Technical Specifications Table
We've standardized our offerings, but tweak per request. Below covers popular sizes.
| Model | Screw Dia (mm) | Bearing Type | Max Load (Axial kN) | Housing Material | Weight (kg) |
|---|---|---|---|---|---|
| BK Fixed-16 | 16 | Angular Contact Duplex | 8 | Aluminum 6061 | 0.8 |
| BF Float-20 | 20 | Deep Groove | N/A (Radial 12) | Steel C45 | 1.2 |
| BK-25 Custom | 25 | AC Preloaded | 15 | Custom Alloy | 2.1 |
| BF-32 | 32 | Sealed Deep Groove | N/A (Radial 20) | Aluminum | 3.0 |
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Tolerances: Housing bore H7, runout <3µm. Bearings P5 class standard. Custom up to P4.
Where These End Supports Excel
- CNC mills and lathes—handling rapid traverse loads up to 10m/min.
- Robotic arms—precision positioning with minimal backlash.
- Packaging lines—high-cycle, dust-prone setups with sealed options.
- Medical devices—cleanroom compliant, low noise under 70dB.
- 3D printers and scanners—budget-friendly for lighter duties.
One client in Canada runs them on wood routers. Heat buildup minimal thanks to our vented designs. Another in Germany: Injection molding extractors. Zero drift after 10k cycles.
YIDI Motion Factory: 100% In-House Strength
Started in 2020, Hebei YIDI Import & Export Trading Co., Ltd. (YIDI Motion) isn't some trading shell. We own the 100-employee factory. 30% senior techs. Gear from Germany (Hermle 5-axis) and Japan (Okuma grinders) ensures micron precision.
One-stop linear motion: Ball screws rolled to C5, guides, actuators. End supports machined same day as screw nuts for perfect fit.
Exports to 50+ countries—US, Germany, Japan top list. Compliant: ISO9001, CE, RoHS. Bearings from verified Tier1s.
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China.
- Daily output: 500 units
- Lead time: Stock 3 days, custom 15-20
- MOQ: 1 for samples, 50 for bulk
Our mission? Innovation, quality, reliability. No fluff—just parts that run.
Installation Insights from the Field
Common mistake: Over-torquing fixed end bolts. Use calibrated wrench, sequence opposite corners. Clean shafts first—no burrs.
Alignment key. Laser tool if possible. Misalign by 0.1mm? Expect 20% stiffness loss.
Grease sparingly—lithium NLGI2. Run-in at low speed first hour.
Warning: Never mix fixed/float sides wrong. Axial loads must go to fixed.
Global Shipping Realities
USA? DHL 5-7 days samples, ocean 25 days FCL. Duties ~4.5% HS 8482.10.
We pack in foam-lined crates. Vibration-tested. Tracking full way.
Bulk? Optimize for 20ft/40ft. Incoterms: FOB/CIF your call.
OEM/ODM: Your Brand, Our Build
Private label easy. We stamp your logo, match Pantone. Full tooling if volume justifies.
Design input welcome. Reverse engineer competitor units free.
What Procurement Pros Say
Mark T., Ops Manager, Ohio CNC Shop: "Swapped Chinese generics for YIDI fixed ends on 20mm screws. Preload spot-on, no more end play. Install took half day per machine. Solid service."
Anna K., Buyer, Toronto Automation Firm: "Custom 32mm float supports arrived week early. Bearings NSK-grade, quiet operation. Great for our palletizers."
Raj P., Supply Chain Lead, Texas Fabricator: "OEM run of 200 units. Logistics smooth, pricing beat THK reps. Will repeat."
Luca M., Engineer, Milan Machinery: "CE marked, perfect fit for EU regs. Stiffness tests passed first try."
Frequently Asked Questions
What’s the difference between fixed and floating end supports?
Fixed handles axial loads (thrust side), floating allows thermal expansion (opposite). Mismatch causes binding.
Can you repair existing units?
Yes, send cores. Re-bush, re-bear. Cost 40% new price if salvageable.
Lead time for custom?
10-15 days prototype, 20-30 production. Rush +20% fee.
Minimum order?
1 sample, 20 production run.
Warranty?
12 months. Covers mfg defects, not misuse.
Ready to Spec Your Ball Screw End Supports?
Talk engineer-to-engineer. Get drawings, samples, pricing.
About the Author: Li Wei, Export Director at YIDI Motion. 15 years in linear motion manufacturing. Ex-NSK engineer. Specializes in OEM ball screw assemblies for US/EU markets.
Last updated: October 2026 | HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. © 2026
