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THOMSON Profile Ball Rail: 20, 340 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht - Thomson 500 Series Ball Profile Rails
THOMSONThomson 500 Series Ball Profile Rails

THOMSON Profile Ball Rail: 20, 340 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht

The Thomson 500 Series Profile Ball Rail: 20 is a steel linear motion rail from THOMSON, with a nominal rail size of 20, an overall length of 340 mm, an overall width of 20 mm, and an overall height of 19 mm. It…

SKU 3G-OTH-123147

Also listed as: 521H20A340 · 521H20A 340 · 521H20A-340

Brand
THOMSON
Item
Profile Ball Rail: 20, 340 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht
Category
Thomson 500 Series Ball Profile Rails
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

THOMSON
Manufacturer Part Number
521H20A+340
Type
Steel
Overall Lg
340 mm
Size
20
Overall Ht
19 mm
Overall Wd
20 mm
Rail Holes
6
Nominal Rail Size
20

Technical Documents

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THOMSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Thomson 500 Series Profile Ball Rail: 20 is a steel linear motion rail from THOMSON, with a nominal rail size of 20, an overall length of 340 mm, an overall width of 20 mm, and an overall height of 19 mm. It features 6 rail holes and is identified by manufacturer part number 521H20A+340.

Frequently Asked Questions

What is the Thomson 500 Series Profile Ball Rail used for?

The Thomson 500 Series Profile Ball Rail is a linear motion rail used in industrial automation, packaging, and material handling systems. It guides and supports moving components with low friction and high precision, making it suitable for CNC machines, robotics, and assembly lines.

What are the specifications of the Thomson 521H20A+340 ball rail?

The Thomson 521H20A+340 is a steel profile ball rail with a nominal rail size of 20, overall length of 340 mm, overall width of 20 mm, and overall height of 19 mm. It has 6 rail holes and is part of the Thomson 500 Series, designed for reliable linear motion.

Where to buy the Thomson 521H20A+340 ball rail worldwide?

You can source the Thomson 521H20A+340 ball rail through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine Thomson components for your linear motion applications.

How to install a Thomson profile ball rail?

To install a Thomson profile ball rail, first ensure the mounting surface is clean and flat. Align the rail with the 6 rail holes, then secure it using appropriate bolts torqued to manufacturer specifications. Use a precision level to check straightness before attaching the carriage. Always follow Thomson's generic installation guidelines.

Used in

Common applications for THOMSON
Industrial automation — Thomson 500 Series ball carriages (511H25C0D) used in linear motion axes for pick-and-place systems.
Packaging machinery — Thomson profile ball rails (521H30AD+1000) guide conveyor or carton-erecting mechanisms.
Material handling — Thomson linear ball bearings (SUPER32OPN) support sliding loads in transfer stations.
Machine tool — Thomson ball nut end blocks (7829547) integrate with ball screws for CNC table positioning.
Medical equipment — Thomson pre-drilled shaft support rails (LSR-10-PD) mount linear guides in diagnostic scanners.
Automated assembly — Thomson double-acting seals (OPNS1000) protect linear bearings in dusty environments.

THOMSON Products

3G Electric supplies THOMSON thomson 500 series ball profile rails. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
Profile Ball Rail: 20, 220 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+220)
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Profile Ball Rail: 20, 220 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+220)
Profile Ball Rail: 20, 1,240 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+1240)
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Profile Ball Rail: 20, 1,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+1000)
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Profile Ball Rail: 20, 1,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+1000)
Profile Ball Rail: 20, 3,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20ARL3000)
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Profile Ball Rail: 20, 3,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20ARL3000)
Profile Ball Rail: 20, 1,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20AD+1000)
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Profile Ball Rail: 20, 1,000 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20AD+1000)
Profile Ball Rail: 25, 820 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+820)
THOMSON
Profile Ball Rail: 25, 820 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+820)

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Profile Ball Rail: 20, 820 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+820)
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Profile Ball Rail: 15, 1,000 mm Overall Lg, 15 mm Overall Wd, 15.7 mm Overall Ht, Steel (MPN 521H15AD+1000)
Profile Ball Rail: 15, 1,500 mm Overall Lg, 15 mm Overall Wd, 15.7 mm Overall Ht, Steel (MPN 521H15ARL1500)
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Profile Ball Rail: 15, 1,500 mm Overall Lg, 15 mm Overall Wd, 15.7 mm Overall Ht, Steel (MPN 521H15ARL1500)
Profile Ball Rail: 20, 160 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+160)
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Profile Ball Rail: 20, 160 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+160)
Profile Ball Rail: 20, 280 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+280)
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Profile Ball Rail: 20, 280 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+280)
Profile Ball Rail: 20, 460 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+460)
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Profile Ball Rail: 20, 460 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+460)
Profile Ball Rail: 25, 1,000 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25AD+1000)
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Profile Ball Rail: 25, 1,000 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25AD+1000)