What Is a Ball Screw and How Does It Work?

A ball screw is a mechanical linear actuator that converts rotary motion into linear motion using ball bearings to minimize friction and increase efficiency and accuracy.

What Types of Ball Screws Do You Offer?

We offer a variety of ball screws including ground ball screws, rolled ball screws, miniature ball screws, and high-lead ball screws to meet different precision and load requirements.

How Do I Choose the Right Ball Screw for My Application?

Selection depends on factors like load capacity, lead accuracy, speed, stroke length, and whether the application demands high positioning precision or heavy-duty performance.

What Is the Difference Between Ground and Rolled Ball Screws?

Ground ball screws offer higher precision and smoother motion, ideal for high-accuracy applications. Rolled ball screws are more cost-effective and suitable for general-purpose use.

What Maintenance Is Required for a Ball Screw?

Regular lubrication is essential. Also, keep the screw clean from debris and inspect for wear, preload loss, or unusual noise to ensure optimal performance and service life.

Ball Bearing Mounts: Reliable Precision Housings for Heavy-Duty Machinery

From conveyor systems to motor assemblies, ball bearing mounts handle the real-world stresses of industrial operations. Sourced from Hebei YIDI's production lines.

Sourcing Ball Bearing Mounts That Actually Perform Under Load

Procurement teams know the drill. You spec out a ball bearing mount for a new line, it arrives, and suddenly alignment issues crop up or the housing cracks under vibration. We've seen it too many times in our export dealings across the US and Europe.

At YIDI Motion, our ball bearing mounts—often called pillow blocks or bearing housings—start with GCr15 chrome steel forgings, precision machined to handle radial and axial loads without play. No fluff. Just mounts that bolt up and run for years in dusty factories or outdoor equipment.

Take a typical scenario: a Midwest conveyor builder needs 50 units for a 24/7 packaging line. Off-the-shelf imports warp at 1500 RPM. Our UC series mounts, with their cast iron bases and double-lip seals, shrug it off. That's the edge from our Shijiazhuang factory, where we've dialed in tolerances to ABEC-3 standards since 2020.

Why does this matter? Bearing mounts aren't just holders. They're the backbone for shaft stability. Misalign one degree, and your linear guides wear out twice as fast. We've shipped over 100,000 units to 50+ countries, learning exactly what US importers demand: quick CAD mods for OEM runs, ROHS-compliant finishes, and containers that don't sit in customs.

Our setup includes German-imported grinders for inner ring seats, holding concentricity to 0.01mm. Operators here spot-check every batch with laser alignment tools. Result? Mounts that cut downtime by keeping bearings centered, even when thermal expansion kicks in at 80°C.

But let's get practical. You're probably comparing quotes right now. Chinese suppliers flood Alibaba with cheap stamped steel housings that rust in humid warehouses. YIDI? Full CNC machining from solid billets, zinc plating standard, optional stainless 304 for food-grade lines. Lead time? 15-25 days for 1000pcs, FOB Xingang.

We've dealt with procurement directors who got burned on "precision" mounts that measured loose. One US client in automation switched to us after rejecting three vendors— their shafts now run true without constant adjustments. That's operational knowledge baked into every quote.

Ball bearing mounts come in flavors: pillow blocks (UC, UCP), flange types (UCFC), take-up units for tensioners. We stock cores but customize bores from 10mm to 80mm. Pair them with our ball screws or linear guides for full motion assemblies—saves you sourcing headaches.

Industry observation: many buyers overlook mounting bolt patterns. Ours match JIS B 1556 and ANSI standards, so no fab work needed. And for high-vibe apps like rock crushers, we reinforce with thicker webs, tested to 10G acceleration.

This isn't hype. It's what our 100-employee team delivers daily. Senior techs—30% of staff—review every OEM drawing. We've exported to Germany’s machine builders, who don't tolerate slop. If you're stateside, expect DDP options via our LA freight partners.

Short version: reliable ball bearing mounts from a factory that gets B2B realities. No minimums under 50pcs for samples. Want specs? Scroll down. Prefer a chat? Hit the button below.

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Inside a Ball Bearing Mount: Engineering That Holds Up

Strip it down: a ball bearing mount secures a deep groove ball bearing (6000-6200 series typical) in a housing that bolts to your frame. Key? The mating fit. ID tolerance h6 or j6, preventing creep under torque.

Materials split two ways. Cast iron (HT200) for cost-effective strength, grey iron damping vibes better than steel. Stainless for corrosives—304 housings, 440C inserts. Seals? Nitrile rubber lips keep grease in, dirt out. Expect L10 life of 20,000 hours at 10,000 RPM.

Precision matters in the bore. Elliptical errors over 5 microns cause ball skidding, heat buildup. Our grinders hit 2-3 microns, verified with V-blocks and indicators. Bases get face-milled flat to 0.02mm/200mm.

Load ratings? Static C0 from 5kN to 50kN depending on size. Dynamic Cr pushes 10-80kN. Factor in your speed and misalignment allowance—most handle 1.5° without binding.

Warning: cheap mounts use potting compound for seals. It hardens, cracks. We press-fit double lips with garter springs.

Procurement Risks with Ball Bearing Mounts—And How to Dodge Them

First trap: spec blindness. Buyer grabs "20mm bore pillow block" without checking housing material. Grey iron warps less than ductile under bolt torque. Always ask for Brinell hardness >180.

Second: lead time lies. "Stock ready" turns into 60-day waits. Verify with factory video tours or third-party inspection.

Third: customs snafus. Non-ROHS parts get hit fees in EU/US. We certify every batch.

Freight risk: loose packing leads to dented bases. Ours ship in foam-lined crates, 500pcs/20ft container.

We've consulted importers who lost $10k on rejected lots due to bore ovality. Tip: demand CMM reports for first orders.

What Sets YIDI Ball Bearing Mounts Apart

Custom bores machined same-day for prototypes.
Anti-rotation pins standard on flange types.
Grease fittings on all sides—no blind spots.
Matched sets for dual-bearing shafts.
5-year warranty on material defects.

Contractors note easier alignment, fewer callbacks.

Technical Specifications Table

Model	Bore (mm)	Length (mm)	Cr (kN)	Housing Material
UCP205	25	140	14	Cast Iron
UCFC211	55	162	43.4	Ductile Iron
UCF208-24	38.1	175	29.1	Stainless Steel
UCP212	60	241	52.4	Cast Iron

ball bearing mounted mounted ball bearing unit ball bearing shaft

Tolerances: ISO 492 for bearings, DIN 635-3 for housings. Full catalog on request.

Where Ball Bearing Mounts Shine in US Operations

Conveyors: Flange mounts on idlers reduce sag.

Motors: Pillow blocks on pump shafts absorb thrust.

Machine Bearing

AGV robots: Compact take-ups for track followers.

Food processing: Stainless in washdown zones.

One client: Texas oilfield gear, our mounts outlasted competitors by 18 months in sand.

Installation Realities—No Guesswork

Bolt to clean frame with M10-12 hardware, torque 20Nm. Align shaft with dial indicator <0.05mm runout. Grease every 3 months, NLGI 2. Watch for fretting at base edges—use Loctite if vibrating.

Pro tip: Heat shaft to 80°C for press-fit, never hammer bearings.

Global Shipping from Hebei—US Focus

FOB Xingang, 20ft holds 2000pcs. Transit: 25 days to LA. DHL for samples, 5 days. Duties? HS 8483.20, 4.5% US rate. Palletized, seaworthy.

Avoid peak season (Sep-Nov) for slots.

YIDI Motion Factory: Built for B2B Exports

HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD., est. 2020. 100 staff, 30% seniors. German/Japanese CNCs. Products: ball screws, linear guides, actuators, splines, bearings. OEM/ODM specialists.

Exports to USA, Germany, Canada, Japan. ISO 9001:2015 certified. Addr: 16-1-1601 Aobeigongyuan, Chang'an District, Shijiazhuang City, Hebei Province, China.

Phone: +86 18134111662 | Email: adam@yidimotion.com | Contact Form

Our edge: one-stop linear motion. Mounts integrate with our guides seamlessly.

Feedback from US and Global Buyers

Mark T., Procurement Mgr, Ohio Automation: "Switched to YIDI after local prices doubled. Mounts fit perfect, no rework. Shipped fast, good packing."

Sarah L., Ops Director, Texas Conveyors: "Heavy load tests passed. Better than SKF clones at half cost. OEM bore mod done in a week."

John R., Engineer, Canadian Machinery: "Alignment held under 2000lb thrust. Seals lasted through washdowns. Will reorder."

Carlos M., Importer, Florida: "DDP to Miami smooth. Quality consistent batch to batch."

By Li Wei, Export Director, YIDI Motion