Table of Contents

• Why Choose YIDI for Ball Screw End Supports?
• Common Procurement Risks in Linear Motion Components
• Technical Breakdown of Ball Screw End Supports
• Key Applications Across Industries
• Our Manufacturing Capabilities
• Detailed Specifications & Comparisons
• Installation and Maintenance Tips
• Global Shipping & Lead Times
• What Buyers Are Saying
• Buyer FAQs
• Get Started – Request Your Quote

I've been in export sales for linear motion parts out of Hebei for over eight years now. Seen plenty of purchasing managers chase the lowest quotes only to end up with misaligned shafts or premature wear. That's why at YIDI Motion, we focus on what matters: precision-machined end supports that hold up under real-world loads.

Ball screw end supports – those BK fixed and BF floating housings – are the unsung heroes keeping your linear axes stable. Without them, even the best ballscrew wobbles, loses preload, and efficiency tanks. We're a dedicated ball screw end support manufacturer, but really, we handle the full linear motion lineup: ballscrews, guides, splines, the works. OEM customization is our bread and butter.

Take a recent case from a US automation firm. They were retrofitting CNC mills and kept getting supports with sloppy angular contact bearing seats. Lead times stretched to 12 weeks from some overseas spots. We shipped matched sets in under 4 weeks, tolerances holding at 0.005mm runout. No drama, just results.

Our setup isn't fancy talk. We pull in German grinding tech and Japanese machining centers. That means every pillow block – whether it's an angular contact preload type or simple radial – comes prepped for your exact shaft diameter. And yeah, we know procurement workflows: RFQ comparisons, sample testing, volume scaling. We make it straightforward.

Markets like yours move fast. Automotive lines can't downtime for faulty supports. Robotics firms need angular precision down to microns. We get that. Exports to 50+ countries, including heavy hitters like Germany and the States. ISO workflows ensure compliance, no surprises at customs.

One thing buyers overlook: end support preload. Get it wrong, and your ballscrew binds under thrust. Our fixed ends handle axial loads up to 10kN standard, floating ones allow for thermal expansion without stress. Simple, but critical.

We're not dumping generic castings. CNC milled aluminum alloy, or steel if you need it beefier. Dust seals standard, grease ports too. And for high-speed apps, we balance them to G2.5. Procurement tip: always match your support's bearing bore to the ballscrew journal – mismatches kill everything.

This isn't a sales pitch dressed as advice. It's what I've learned shipping thousands of sets. YIDI Motion, part of Hebei Yidi Import Export, started in 2020 but built on decades of factory know-how. 100 staff, 30% senior techs. One-stop for linear motion.

Scroll down for specs, risks to dodge, and how we stack up. Or skip to the end – grab a quote direct.

Procurement Risks You Can't Afford with Ball Screw End Supports

Spot a pattern in supplier complaints? Too many. Off-center bores. Weak castings cracking at first torque. Or worse, supports arriving with bearings that weren't preloaded right. I've fielded calls from ops managers mid-install, cursing delays.

Risk one: Tolerance drift. Cheap supports hit 0.02mm TIR easy. Your ballscrew? Gone in months. We hold 0.003mm on critical seats.

Risk two: Material skimps. Thin walls flex under moment loads. Go aluminum 6061-T6 minimum, or steel for heavies. We've seen pot-metal failures on 20mm shafts – don't repeat it.

Lead time traps kill projects. "4 weeks" turns to 10. Factor in ocean freight: 25-35 days to US West Coast. Air if urgent, but budget accordingly.

Custom headaches. Not all factories do OEM right. Send your drawing, get back a prototype that ignores key features. We prototype in 7-10 days, full runs scale fast.

Compliance snags. RoHS, CE if Europe-bound. We stamp certs, provide test reports. No guessing.

Quick buyer check: Verify supplier's ballscrew experience. End supports aren't standalone – they mate with nuts, shafts. General machinists miss nuances like nut overhang clearances.

Avoid these, and your linear axis runs years without fuss.

Inside Ball Screw End Supports: Fixed vs. Floating Explained

Start simple. Every ballscrew needs two ends: one fixed (thrust capable), one floating (expansion allowance). Fixed types – BK series – lock axial position with angular contact bearings or duplex pairs. Floating – BF – radial only, like deep groove balls.

Precision grinding on the bore seat matters most. Runout here feeds straight into your shaft alignment. Misalign by microns, and contact stresses spike, ballscrew life halves.

Materials? Aluminum for most: light, corrosive resistant. Anodized black standard. Steel for high thrust, but watch weight.

Bearing fits: Class 7 or better. Preload? Light for speeds over 2000rpm, medium for heavy cuts.

Sealing: Labyrinth or contact lips keep coolant out. Grease fittings top or side – your mount decides.

Mounting: Tapped holes, dowel pins optional. Torque specs? 10-15Nm typical, but check your base rigidity.

For high-accel apps, consider locked-fixed pairs. Doubles thrust capacity, but needs rigid base.

We've machined these for shafts up to 80mm. Custom flanges too – integrate with your frame.

Where Ball Screw End Supports Shine in Real Applications

• CNC Machines: Spindle axes, tables. Handle 5g accel, 3000rpm.
• Robotics: Joint actuators. Compact BF12 for arms.
• Automation Lines: Pick-place, inspection. Matched sets reduce backlash.
• Medical Devices: Surgical robots. Sterile seals, low noise.
• 3D Printers: High-speed Z axes. Lightweight alloys.
• Packaging: Fillers, sealers. Continuous duty.

One client in automotive stamping used our BK25 fixed ends. Cut vibration 40% vs. old cast iron. No numbers pulled – their words.

YIDI Motion Factory Strengths – What Sets Us Apart

100 employees, Shijiazhuang base. Imported DMG Mori centers from Germany, Okuma lathes Japan-side. That gear churns supports daily.

Senior techs – 30% headcount – oversee grinding, CMM checks. Every batch inspected, serialized if needed.

OEM/ODM full cycle: From your SolidWorks file to container load. Prototypes laser-etched with your mark.

Exports: 50 countries. US, Canada, EU routine. FOB Xingang port, CIF options.

Certifications: ISO 9001:2015. RoHS compliant. Test lab on-site: thrust, radial, life cycles.

Volume? 5000 units/month easy. Peak seasons, we stock blanks.

Technical Specifications Table

ball screw end support supplier wholesale ball screw end support ball screw cover manufacturer

Custom sizes up to 80mm. Bearing options: 7200 series angular, 6000 deep groove. Full PDF catalog on request.

Quick Comparison: YIDI vs. Standard Market

Practical Installation & Maintenance Advice

Mount fixed end first, align shaft. Torque bolts dry, 12Nm max for M8. Shim if base isn't flat – 0.01mm max gap.

Floating end: Loose fit axial, torque radial. Grease initial fill: lithium NLGI 2.

Maintenance? Check preload yearly. Runout over 0.01mm? Replace bearings.

Warning: Over-tighten, crack alloy. Undersize shaft journal, bind bearings.

For coolant exposure, add scrapers. Life extends 2x.

Shipping & Procurement Logistics

FOB Xingang. 20ft container: 5000 pcs BK15. US East: 35 days sea.

Samples: DHL 3-5 days. MOQ 10 sets stock, 100 custom.

Payment: 30% TT advance, balance sight LC. Escrow if nervous.

Feedback from Procurement Teams

Frequently Asked Questions from Buyers

What’s the difference between BK and BF end supports?

BK fixed handles thrust one way. BF floating radial only, allows expansion.

Can you customize for my shaft size?

Yes, up to 80mm. Send drawing, get quote same day.

What’s your typical lead time to USA?

Samples 5 days air. Production 3-4 weeks + shipping.

Do you supply with bearings included?

Yes, matched angular or deep groove. Specify preload.

Minimum order quantity?

10 sets stock models. Custom negotiable.

Certifications?

ISO 9001, RoHS. Full reports provided.

Ready to Source Reliable Ball Screw End Supports?

No risk – request specs, samples, or factory pricing today.

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China | adam@yidimotion.com