20mm Linear Rail And Rail Linear Bearing is consisted of rail, block, rolling elements, retainer, recirculator, end seal etc. By using the rolling elements, such as balls or rollers between the bearing linear rail and block, the rail linear bearing can achieve high precision linear motion. Bearing linear rail is divied to flange type and square type without flange.or Seal type block, Standard type block. Also, 20mm linear rail is divided to high load capacity with standard block lenth and ultra high load capacity with longer block length.
Regular specifications as follows table:
20mm Linear Rail And Rail Linear Bearing is a kind of high-precision linear motion components for industrial equipment and automation system. 20mm linear rail is widely used in machine manufacturing, CNC equipment and automated production line. 20mm linear guide rail and 20mm linear bearing block can provide smooth and low-friction linear motion for all kinds of equipments through bearing linear rail's precision design and stable motion performance.
These 20mm linear rail and 20mm linear bearing block systems provide efficient, long-lasting linear motion support in a variety of industrial applications through 20mm linear rail and 20mm linear bearing block's high-precision manufacturing process and reliable performance. 20mm linear rail and 20mm linear bearing block can significantly reduce friction and energy consumption. 20mm linear guide rail also can enhance the motion efficiency and service life of the equipment.
Payment:
We accept payment via TT (Bank transfer), L/C,Western Union.Paypal and other payment.
Shipping method:
Including DHL, UPS, TNT, FEDEX,EMS, Airfreight and by Sea,as customer required.
Load capacity is determined by dynamic (C) and static (C₀) load ratings. For example: A 6205 deep groove ball bearing has a dynamic load rating of 14 kN, suitable for small motors. For heavy loads, choose tapered roller bearings (e.g., 32208 with C=90 kN). Recommendation: Share your equipment’s load analysis for optimal bearing selection.
Materials: Stainless steel (440C/316) or coatings (nickel plating, DLC). Seals: Double rubber seals (2RS) or PTFE seals. Example: Seawater pumps often use 316 stainless steel bearings with lifelong grease.
Speed limits depend on bearing type and lubrication: Standard 608ZZ ball bearings: ~18,000 rpm. Hybrid ceramic bearings (Si3N4 balls): 30–50% higher speeds. Solution: For high-speed applications, opt for oil lubrication or low-friction design.
Theoretical lifespan: Based on load calculations (see Q1). Real-world factors: Lubrication intervals (e.g., grease replenishment every 100km). Mounting surface flatness (≤0.01mm/m required). Tool: Free lifespan calculation software available.
Must-check: Slider hole spacing (e.g., 45mm×45mm). Rail width (15/20/25mm, etc.). Slider height (impacts machine space). Pro tip: Old slider model numbers are often engraved on the side.
Of course, we provide customized service, including add customers’ logo on the products, customized size of linear guide rail.
It according to the products, we usually can adjust the quantity according to customers’ request.
Invoices are automatically emailed to you when you complete your order. If you did not receive one contact us and provide your order number so we can find your order.
When your order ships you will receive an email with a tracking number which should have an estimated delivery date. Check your spam folder if you do not see it in your inbox. For more information on shipping, please reference our shipping policy.
You can either fill out the contact us form on our website, or head over to our sister website ngsbearing.com and request a quote over there for any product you see here on Bearings Direct. Please note that there will be minimum order quantities.
