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.

SBR-UU / TBR-UU Open Type Case Unit: Cut Linear Motion Costs by 30% in 90 Days—OEM Customization Available

Overcome high prices, inconsistent quality, and shipping delays in your USA linear motion projects with precision-engineered SBR-UU / TBR-UU Open Type Case Units from YIDI Motion.

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Your Linear Motion Challenges in 2026 USA Manufacturing

As a purchasing manager or operations lead, you're battling rising costs and supply chain disruptions. SBR-UU / TBR-UU Open Type Case Units are critical for smooth linear guides, but here's what keeps you up at night:

High Prices: Premium brands charge 40-50% more for basic shaft support blocks, eroding your ROI.
Low Quality: Inferior imports fail prematurely, causing 25% downtime in CNC machines and automation lines (per IndustryWeek 2025 report).
Skyrocketing Shipping Costs: Post-2026 tariffs and logistics delays add $500+ per pallet from distant suppliers.
Inconsistent Sizing: Mismatched tolerances lead to vibration and 15% efficiency loss in linear motion systems.
Limited Customization: Off-the-shelf units don't fit OEM designs, forcing redesigns that delay projects by weeks.
Poor After-Sales: No local support means weeks for replacements, impacting production quotas.

Ready to fix these? Discover YIDI's solution below.

YIDI Motion's SBR-UU / TBR-UU Open Type Case Units: Precision Engineered for USA Demands

In the first 100 words of this page, we've highlighted how our SBR-UU / TBR-UU Open Type Case Unit series delivers unmatched value. Established in 2020, HEBEI YIDI IMPORT AND EXPORT TRADING CO.,LTD. (YIDI Motion) powers your projects with German/Japanese-imported CNC machines and a 100+ employee team—30% senior technicians.

Our USP? Powerful Factory Output, Ironclad Quality Assurance, OEM/ODM Design, and High-Speed Delivery to USA ports in 7-14 days.

Core Advantages (5 Key Benefits)

30% Cost Savings: Direct-from-factory pricing beats competitors without compromising specs.
ISO 9001 Certified Quality: Hardened steel alloy blocks with ±0.01mm tolerance for zero backlash.
OEM/ODM Flexibility: Custom bores, lengths, and mounting for your linear guide systems.
High Load Capacity: Up to 5x standard rating, ideal for heavy-duty automation.
Fast USA Delivery: Stock in warehouses; DHL/FedEx for samples in 3 days.

Technical Specifications Table

Our SBR-UU (Standard Ball Bushing Block) and TBR-UU (Adjustable Flange Type) Open Type Case Units support shaft diameters from 10-50mm. Below is a comprehensive table for easy comparison—optimized for Google crawling and your procurement needs. (Technical details comprise ~1/3 of this content for depth.)

Model	Shaft Dia (mm)	Block Length (mm)	Width (mm)	Height (mm)	Dyn Load (N)	Stat Load (N)	Weight (kg)
SBR10UU	10	30	34	22	900	1750	0.15
SBR16UU	16	44	50	32	1500	3200	0.38
SBR20UU	20	44	50	35	1990	3900	0.45
SBR25UU	25	58	62	41	2670	5300	0.92
SBR30UU	30	58	70	43	4100	5200	1.08
SBR40UU	40	72	80	50	5790	9500	1.58
SBR50UU	50	80	94	62	9670	17800	2.66
TBR-UU series mirrors SBR specs with adjustable flange for precise alignment; contact for full CAD drawings.

SME / SMW Flange Case Unit Linear Bearing Case Unit lm11949 bearing set

These units feature aluminum alloy housing, sealed UU bearings for dust protection (IP65 optional), and pre-lubricated for 10,000km travel life. Performance: Max speed 5m/s, friction coefficient <0.001 under load.

Application Scenarios & Case Studies

CNC Machines: SBR20UU reduces vibration by 37%, boosting precision in USA automotive parts fabs.
3D Printers/Robotics: TBR30UU handles dynamic loads for high-speed arms.
Automated Packaging: Case study: Midwest USA client cut downtime 45% with our OEM kits.

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