Ball Screw SFU CNC Tool High Precision DIN 69051
Specifications
| Bearing Type | Ball Screw with Nut |
| Standard | DIN 69051 Form B |
| Application | CNC Tools |
| Model | SFU |
Description
Precision ball screw assembly designed for CNC machinery, compliant with DIN 69051 standard Form B. Features high accuracy and smooth linear motion performance. Ideal for automated tooling systems requiring reliable positioning.
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- Size Guide
Size Guide
DRESSEST-SHIRTBOTTOMSDRESSESSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
T-SHIRTSize Chest Waist Hips 2XS 32 26 32 XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 All measurements are in INCHES
and may vary a half inch in either direction.
BOTTOMSSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
- Delivery & Return
Delivery
Store delivery FREE
1-3 working days
Home or collection point from £35.00 FREE
On all your orders for home or collection point delivery
Returns
Return
We will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).
Returns in store FREE
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
- Ask a Question
Basic Info.
WHY KOYOSKF BEARINGS
In order to supply even more stable quality to our vast customers, we established a factory in Liao Cheng city,Shandong province.
Beside standard specifications, we also provide the customized service.Welcome all of customers visit our factory . We look forward to establishing a good long-termbusiness relationship with you.
KOYOSKF Bearing Manufacturer Show
In addition to our own production of bearings, bearing manufacturers, we have established as many as 600 partnerships; if there is a demand in the world, we will purchase to meet the needs of different customers.
FAQ
Frequently Asked Questions
Yes—we customize size, material, precision, or branding per your needs. Samples are provided for confirmation before mass production.
- Our products hold ISO 9001, TS 16949, and DIN/SAE certifications. We conduct strict inspections from raw materials to pre-shipment.
Standard lead time: 15–30 working days. Urgent orders can be expedited to 7–15 days (subject to feasibility).
All products come with a 12–24 month warranty. We offer free replacement/repair for quality issues, with 24-hour response.
We support T/T (30% deposit + 70% balance), L/C, and PayPal (small orders). Transactions are secured via trusted channels.
MOQ varies by product type—starting from 100 units for standard items. Flexible MOQ for long-term partners or customized orders.
WHAT OUR CLIENTS SAY
James Cooper
KOYO bearings are durable and precise; their stable performance cuts our downtime greatly, and your reliable supply wins our trust.
Lisa Morgan
KOYO bearings boast excellent quality; their long service life reduces our replacement costs, and your professional service makes cooperation smooth.
Mike Wilson
KOYO bearings run steadily and well; their high precision fits our equipment perfectly, and your on-time delivery never lets us down.
Emma Clark
KOYO bearings are top-grade and reliable; their anti-wear feature boosts efficiency, and your thoughtful after-sales support gives us reassurance.
John Smith
KOYO bearings exceed our expectations; their sturdy quality adapts to heavy work, and your consistent supply secures our production.
Anna White
KOYO bearings are premium and durable; their stable operation meets strict demands, and your sincere service makes us a steady partner.
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Product Parameters
| Model NO. | LM3UU LM4UU LM5UU LM6UU LM8UU LM10UU LM12UU LM16UU |
| Material | Bearing Steel |
| Type | Lengthen |
| Precision | P0 P6 P5 P4 P2 |
| Origin | Japan |
| Application | Electronic Equipment, Food Machinery |
Introduction
This series of lengthened linear bearings features bearing steel construction with multiple precision grades (P0-P2). Available in models LM3UU to LM16UU, they are non-aligning, single-row bearings suitable for electronic equipment and food machinery. Originating from Japan, these OEM bearings offer reliable performance with 0° contact angle and unseparated design, ensuring stable operation in various industrial applications.
Specifications
| Inner Diameter | 8, 12, 16, 20, 25 mm |
| Outer Diameter | 24, 32, 40, 47, 52 mm |
| Thickness | 19, 24, 28, 32, 35 mm |
Description
High Precision Flange Linear Bearings provide smooth and reliable linear motion for industrial applications. Available in multiple sizes (8–25 mm bore), these bearings feature a robust design with excellent load capacity and durability, ideal for automation, machinery, and precision equipment.
Specifications
| Bore Diameter | 6 mm |
| Outer Diameter | 19 mm |
| Thickness | 40 mm |
| Material | Chrome Steel |
| Dynamic Load Rating | 3.8 kN |
| Sealing Type | Double Sealed |
Description
High Quality LM 6LUU needle roller bearings provide smooth linear motion with precision performance. Designed for durability and high load capacity, these linear bearings feature a compact design ideal for automation, machinery, and industrial applications requiring reliable guidance under moderate loads.
Product Parameters
| Model NO. | LM30UU |
| Material | Bearing Steel |
| Type | Lengthen |
| Precision | P0 P6 P5 P4 P2 |
| Application | Electronic Equipment, Food Machinery |
| Origin | Japan |
Introduction
LM30UU lengthened linear bearing with bearing steel material, featuring single row and non-aligning design. Available in P0-P2 precision grades, suitable for electronic equipment and food machinery. Unseparated structure ensures stable performance, offered with OEM service. Originated from Japan, providing reliable linear motion solutions.
Specifications
| Inner Diameter | 12mm |
| Outer Diameter | Square Flange Type |
| Thickness | Standard with Flange Block |
Description
Precision linear motion bearing with square flange design ensures smooth and stable movement. Ideal for industrial automation and machinery requiring high load capacity and accurate guidance. Available in multiple sizes (LMF35UU to LMF100UU) for versatile applications.
Specifications
| Inner Diameter | 6mm |
| Outer Diameter | 19mm |
| Thickness | 15mm |
Description
Premium flanged linear ball bearing with square flange design for stable guidance and easy mounting. Compatible with 6mm shafts, ideal for precision motion systems.
Specifications
| Inner Diameter | 30mm |
| Outer Diameter | 42mm |
| Thickness | 30mm |
Description
Compact flange linear ball bearing designed for CNC machinery and automation equipment. Ensures smooth, precise linear motion with high load capacity. Suitable for Lmk30luu, Lmk35luu, Lmk40luu, Lmk50luu, and Lmk60lu applications.
Specifications
| Bore Diameter | 40 mm |
| Outer Diameter | Varies by model |
| Thickness | Depends on series |
| Type | Flanged Linear Ball Bearing |
| Model Range | LMEK40UU to LMEF25LUU |
Description
Precision linear ball bearings with flange block design ensure stable guidance and smooth motion. Suitable for automation, machinery, and industrial applications requiring reliable linear movement.
Specifications
| Inner Diameter | 35 mm |
| Outer Diameter | 62 mm |
| Thickness | 40 mm |
Description
Precision linear bearing with flange block, designed for CNC and automation equipment. Features smooth motion, high load capacity, and durable construction for reliable performance in industrial applications.
Specifications
| Bore Diameter | 16 mm |
| Outer Diameter | 26 mm |
| Thickness | 20 mm |
| Material | Chrome Steel |
| Load Type | Linear Motion |
| Accuracy | High Precision |
Description
High precision CNC machined linear bearing with circular flange, designed for smooth and reliable linear motion. Ideal for industrial automation, 3D printers, and CNC machines. Features chrome steel construction for durability and consistent performance under load.
Specifications
| Inner Diameter | 8-25 mm (varies by model) |
| Outer Diameter | Flanged block design for stability |
| Thickness | Compact profile for space-saving installation |
Overview
High-quality linear motion slide block bearings with flange block (LMEF8UU to LMEF25UU). Designed for smooth, precise linear movement. Ideal for industrial automation, CNC machines, and 3D printers. Durable construction ensures long service life under heavy loads.
Specifications
| Bore Diameter | 3mm, 4mm, 5mm, 6mm, 8mm |
| Outer Diameter | 7mm, 9mm, 11mm, 13mm, 16mm |
| Thickness | 8mm, 9mm, 10mm, 11mm, 15mm |
| Material | Stainless Steel |
| Type | Linear Motion Bearing |
Description
Precision stainless steel linear motion bearings in standard metric sizes. Ideal for smooth linear movement in compact applications. Corrosion-resistant design ensures long service life in demanding environments.


