Linear Bearing Case Units: Built for Precision Linear Motion in Demanding Applications
From CNC machinery to automated assembly lines, our linear bearing case units deliver reliable, low-friction performance. OEM/ODM ready from Hebei YIDI—exported to 50+ countries.
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Why Linear Bearing Case Units Are Gaining Traction Now
Automation projects keep ramping up, especially in the US manufacturing sector. Procurement teams tell us they're swapping out loose linear bearings for integrated case units to cut assembly time. No more fiddling with alignments—everything arrives pre-assembled and ready to bolt in.
We've seen demand spike from sectors like semiconductor handling and medical device assembly. Lead times from traditional suppliers often stretch 12-16 weeks, but our stock program for standard sizes gets units to US ports in 4-6 weeks. That's real savings on downtime.
One observation from the field: vibration-heavy environments chew through poorly housed bearings fast. Case units with aluminum housings and sealed options hold up better, often lasting 2-3x longer before needing checks.
What Sets Our Linear Bearing Case Units Apart
These aren't off-the-shelf generics. Our LBC series integrates high-precision linear bearings into robust die-cast aluminum housings. Think LM-type bearings in sizes from 8mm to 50mm shaft diameters, with options for flange or block mounts.
- Precision Ground Rails: Match with our linear guides for sub-0.01mm repeatability.
- Sealed Designs: Dust and debris stay out—critical for dusty factory floors.
- Lightweight Yet Tough: Aluminum alloy reduces inertia in high-speed actuators.
- Custom Machining: Add sensor mounts or lubrication ports per your blueprint.
Buyers often overlook the mounting holes. Ours are tapped precisely to M4-M12, saving you drilling headaches on-site.
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Where These Units Excel in Practice
Take a packaging line: case units handle the side-to-side slides for flap folders without binding. Or in 3D printers—smooth Z-axis motion keeps layers even.
We've supplied to pick-and-place robots in electronics assembly. The low-friction coefficient (around 0.001-0.003) means less motor strain, extending drive life.
Installation Realities—What Buyers Need to Know
Straightforward, but torque those bolts right: 5-10Nm for M6, depending on load. Pre-lube the bearing race if it's a dry-run setup.
Common pitfall? Misaligning the shaft. Use our dial indicator method—takes 10 minutes, prevents premature wear. We've got a quick PDF guide; just ask.
- Mount housing to frame with even pressure.
- Slide shaft through, check for 0.02mm max play.
- Secure end supports 500mm apart max.
In humid shops, add grease every 500 hours. Skimp here, and you'll chase noise issues.
Detailed Technical Specifications
| Model | Bearing Size (mm) | Dynamic Load (N) | Static Load (N) | Weight (kg) | Max Speed (m/min) |
|---|---|---|---|---|---|
| LBC-08 | LM8UU | 1,450 | 1,780 | 0.12 | 300 |
| LBC-12 | LM12UU | 2,350 | 3,120 | 0.25 | 250 |
| LBC-16 | LM16UU | 4,120 | 5,460 | 0.38 | 200 |
| LBC-20 | LM20UU | 6,280 | 8,550 | 0.62 | 180 |
| LBC-25 | LM25UU | 9,350 | 12,600 | 0.95 | 150 |
| LBC-30 | LM30UU | 12,600 | 17,500 | 1.28 | 120 |
Note: Loads per JIS standards. Custom sizes available up to 80mm.
Smart Procurement for Linear Bearing Case Units
Riskiest move? Sourcing from unverified Alibaba sellers. Check for actual factory footage and ISO certs. We've seen units arrive with undersized bearings—total loss.
Our advice: Start with MOQ 50 units for testing. Factor in 20-25% duties for US imports. Lead time? 25 days production + 20 days sea freight to LA.
Compare suppliers:
| Factor | YIDI Motion | Typical Competitor |
|---|---|---|
| Customization | Full OEM/ODM | Limited |
| Lead Time | 4-6 weeks | 8-12 weeks |
| Certifications | ISO/CE/RoHS | Varies |
| Export Experience | 50+ countries | Regional |
linear bearing linear bearing type linear bearing system

Logistics and Shipping from China to Your Door
We pack 200-500 units per carton, foam-wrapped to survive ocean transit. FCL 20ft holds 10,000+ standard units. DDP options to major US hubs—no surprises.
Watch for: Humidity in transit can affect grease. We vacuum-seal for long hauls.
Inside YIDI Motion: 100+ Employees, German/Japanese Tech
Our Hebei facility runs Okuma CNCs and DMG Mori grinders. 30% senior techs ensure tolerances under 5 microns. From raw aluminum billet to finished case—vertically integrated.
Export stats: 60% to North America/Europe. Partners like US automation integrators rely on our one-stop linear motion kits.
Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China
Phone: +86 18134111662 | Email: adam@yidimotion.com
Certifications That Matter
What Buyers Are Saying
Mike R., Operations Manager, Texas Automation Firm"Switched to YIDI's LBC-20 units for our CNC upgrades. Installation was plug-and-play, and load ratings held under 24/7 runs. Beat local quotes by 25%."
Sarah K., Supply Chain Lead, Ontario Robotics"Custom flange mods arrived perfect. Sea freight on time, no damage. Maintenance intervals stretched to 1,000 hours."
Raj P., Engineering Buyer, Mumbai Distributor"OEM run of 2,000 units for our resell line. Quality consistent, docs in English. Good partner."
"Used LBC-16 in vertical actuators. No binding after 6 months. Engineer chat helped spec it right."
Frequently Asked Questions
Q: What's the difference between flange and square case units?
Flange for panel mounts, square for base slides. We stock both.
Q: Can you match competitor part numbers?
Yes, reverse-engineer from THK or IKO samples.
Q: Minimum order for samples?
10 units, free engineering consult.
Q: How about maintenance?
Lithium grease NLGI 2 every 500km travel or 6 months.
Q: Export to USA—any issues?
Fully compliant, HTS code 8483.20 provided.
Ready to Move Forward?
Talk specs, pricing, or samples with our team. Zero risk—satisfaction guaranteed.
Contact YIDI NowHEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. | Est. 2020 | +86 18134111662
John Li, Export Director at YIDI Motion


