Ball Screw End Support Supplier: Precision Fixed & Floating Units for Demanding Applications
Reliable end supports engineered for high-load linear motion systems. OEM/ODM from Hebei Yidi – exported to USA, Germany, Japan.
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Title: Ball Screw End Support Supplier | Fixed & Floating | OEM Manufacturer China | YIDI Motion
Description: Trusted ball screw end support supplier for CNC, automation, robotics. Precision fixed (BK/ FK) and floating (BF/ FF) units. OEM/ODM, ISO certified, fast global shipping to USA/EU. Request specs & pricing.
Why Procurement Risks Hit Hard with Ball Screw End Supports
Procurement managers know the drill. You spec out a ball screw assembly for a new CNC line, only to find the end supports wobbling under load after a few months. Misaligned shafts, premature bearing failure, or just plain poor tolerances – it's a nightmare that cascades into downtime.
We've seen it across shipments to US machine shops and European automation firms. Cheap imports from unverified suppliers often cut corners on preload adjustments or housing rigidity. Result? Your linear motion system vibrates, accuracy drops, and you're back to square one hunting replacements.
One common trap: overlooking the fixed vs. floating side mismatch. Fixed ends need angular contact bearings to handle axial loads; floating ones, deep groove for radial only. Get it wrong, and thermal expansion turns your setup into a liability.
Lead times drag too. Spot market deals promise quick delivery but ship subpar units that fail inspection. We've fielded calls from importers stuck with containers full of rejects – customs clearance issues piling on top.
- Undisclosed material variances: Low-grade steel housings that fatigue fast.
- Inconsistent precision classes: C3/C5 ballscrews paired with sloppy supports.
- Missing certifications: No ISO 9001 or RoHS, complicating compliance for US/EU buyers.
- Logistics blind spots: Oversized packaging leading to excess freight costs.
Short story: Risk-averse buyers stick with proven partners. That's where direct-from-factory suppliers like us step in, cutting the middleman fluff.
YIDI's Ball Screw End Support Solutions: Built for Real-World Loads
At YIDI Motion, we don't just supply ball screw end supports – we engineer them for the grind of daily production. Established in 2020, our Hebei factory focuses on linear motion essentials: ball screws, linear guides, actuators, splines, bearings. End supports are a core line, with fixed (BK/FK) and floating (BF/FF) designs machined to match.
Take our BK15 fixed unit. Angular contact bearings preloaded for 5-10Nm axial hold-down, housing in hardened SC45 steel. Tolerances hit within 5 microns – no slop. We've tuned these for high-speed spindles where misalignment kills precision.
Floating sides like BF12 use 6201 deep groove bearings, allowing axial float up to 0.5mm for thermal shifts. Simple, but critical. Procurement teams appreciate the drop-in compatibility with THK, TBI, or HIWIN ballscrews.
What sets us apart? OEM customization. Need metric or imperial bores? Extended shafts? Dust seals for dirty shop floors? We tweak without MOQ hikes. Exported to 50+ countries – USA machine builders, German robotics firms, Japanese automation lines.
Operationally, these units reduce setup time. Contractors report 20-30% faster alignment versus generic imports. No guesswork on bearing fits.
Our one-stop service covers the full linear motion stack. Pair end supports with ball screws and nuts for seamless integration. Senior techs (30% of our 100-person team) oversee production on German/Japanese CNC grinders.
Detailed Technical Specifications Table
Here's the nitty-gritty. Specs pulled from our catalog – verified against real production runs.
| Model | Type | Shaft Dia (mm) | Bearing | Load (Dynamic/Static kN) | Weight (kg) |
|---|---|---|---|---|---|
| BK10 | Fixed | 10 | 7200AC | 6.5/10.2 | 0.15 |
| BF12 | Floating | 12 | 6201 | 9.5/12.8 | 0.18 |
| FK20 | Fixed w/ Shaft | 20 | 7204AC | 19/32 | 0.65 |
| FF25 | Floating w/ Shaft | 25 | 6205 | 14/20 | 0.92 |
| BK40 | Fixed | 40 | 7208AC | 28/42 | 2.1 |
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Note: Custom sizes up to 80mm. Materials: SC45/SC50 housing, GCr15 bearings. Precision: P0/P5.
Need full CAD files? Email adam@yidimotion.com for STEP/IGES downloads.
Where Our End Supports Excel: Real Application Scenarios
CNC routers. Milling machines. Pick-and-place robots. Semiconductor wafer stages. These aren't lab toys – they're revenue-critical setups demanding zero play in the ballscrew ends.
In US woodwork shops, our BK/FF combos handle dusty environments with optional nitrile seals. Vibration damped by thicker flanges. One importer noted fewer spindle recalibrations post-swap.
Automation lines in Germany? High-cycle rates. Our preload-tuned fixed supports take 50kN thrusts without deflection. Paired with C5 ballscrews for sub-10micron repeatability.
Robotics arms need compact footprints. FK15 with shaft extensions fit tight envelopes. Logistics-wise, these ship palletized, 200pcs per Euro pallet.
- Heavy Industry: Press brakes, injection molders – high static loads.
- Precision Machining: EDM, grinders – micron-level accuracy.
- Medical Devices: Cleanroom compatible, RoHS compliant.
- 3D Printers: Low-cost volume runs, scaled down.
Procurement note: Factor in duty cycle. Continuous run? Go oversized bearings.
Inside YIDI's Factory: From Hebei to Global Supply Chains
Shijiazhuang base, 100 employees strong. Imported DMG Mori grinders from Germany, Okuma lathes from Japan. Ensures concentricity under 3 microns. Tech team – 30+ seniors – handles FEA simulations for custom loads.
Certifications: ISO 9001:2015, RoHS, CE marked for EU. See factory shots: factory/1.png (grinding line), factory/5.png (QC station).
Export track: 50 countries. USA via LA port, 25-35 day LCL/FCL. Canada by rail bridge. MOQ flexible – 10pcs samples, 100+ volume. Pricing scales with qty; samples at cost + freight.
OEM/ODM? Full spectrum. Private label your brand. We've tooled for US distributors, German OEMs.
Installation Tips & Logistics That Save Headaches
Mount fixed end to rigid base first. Torque housing bolts to 15Nm spec – overtighten cracks castings. Align with dial indicator; aim under 0.02mm runout.
Floating end last, allowing float. Grease Z1 per manual – lithium NLGI2 holds up.
Shipping: Foam-packed, carton outer. 50kg max/box. Incoterms: FOB Tianjin, CIF options. Track via our portal.
Common pit: Forgetting shaft keys. We supply slotted options.
Maintenance: Annual bearing check. Listen for growl – early wear signal.
Feedback from Procurement Pros
Mike R., Operations Mgr, Texas CNC Shop: "Swapped generic supports for YIDI BK20s. Alignment held through 5000hr runs. Freight from China beat local quotes by 25%. Solid OEM partner."
Anna K., Supply Chain Lead, Ontario Automation: "FF15 floats perfect on our ballscrew upgrades. ISO docs sped customs. Samples arrived DHL 5 days – tested fine."
Tom S., Engineer, Bavarian Robotics: "Custom shaft extensions on FK30. Tolerances spot-on. Better than THK clones at half price. Repeat orders incoming."
Lee W., Importer, California: "Volume run of 200pcs BK40. Packaging pro – zero damage. Engineer chat via WeChat clarified preload."
Frequently Asked Questions from B2B Buyers
What's the difference between fixed and floating end supports?
Fixed (BK/FK) handles axial loads via angular bearings. Floating (BF/FF) allows movement for expansion. Use one each per screw.
Can you OEM with our logo?
Yes. No extra tooling for standard models. Lead +5 days for laser etch.
Shipping to USA – costs/timeline?
LCL 25-35 days, $200-400/cbm FCL. Samples DHL 5-7 days.
Material certs available?
RoHS, SGS on request. Bearings NSK/NTN equiv.
Minimum order?
10pcs mixed. Volume discounts at 50+.
Ready to Source Reliable Ball Screw End Supports?
Skip the risks. Talk factory-direct.
- Request Free Samples – Test in your setup.
- Get Volume Pricing – Tailored quote in 24hrs.
- Chat with Engineer – Specs, CAD, advice.
HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang, Hebei, China
Written by: Adam Chen, Export Director
15+ years in linear motion exports | YIDI Motion
Img: author/2.png
Updated: 2026 | Serving USA, EU, Asia since 2020
