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THOMSON Profile Ball Rail: 20, 280 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, 280 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht

The Thomson 500 Series Profile Ball Rail, model 521H20A+280, is a steel linear motion rail with a nominal size of 20. It has an overall length of 280 mm, overall width of 20 mm, overall height of 19 mm, and features…

SKU 3G-OTH-123279

Also listed as: 521H20A280 · 521H20A 280 · 521H20A-280

Brand
THOMSON
Item
Profile Ball Rail: 20, 280 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht
Category
Thomson 500 Series Ball Profile Rails
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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+280
Type
Steel
Overall Lg
280 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, model 521H20A+280, is a steel linear motion rail with a nominal size of 20. It has an overall length of 280 mm, overall width of 20 mm, overall height of 19 mm, and features 6 rail holes.

Frequently Asked Questions

What is the Thomson 521H20A+280 profile ball rail used for?

The Thomson 521H20A+280 profile ball rail is used in linear motion systems for precise positioning and load support in automation, packaging, and material handling equipment. It provides smooth, low-friction travel for carriages in CNC machines, assembly lines, and robotics.

What are the specifications of the Thomson 521H20A+280 profile ball rail?

The Thomson 521H20A+280 is a steel profile ball rail with nominal size 20, overall length 280 mm, overall width 20 mm, overall height 19 mm, and 6 rail holes. It is part of the Thomson 500 Series, designed for reliable linear guidance in industrial applications.

Where to buy the Thomson 521H20A+280 profile ball rail worldwide?

3G Electric supplies the Thomson 521H20A+280 profile ball rail worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this linear motion component.

How to install the Thomson 521H20A+280 profile ball rail?

Install the Thomson 521H20A+280 profile ball rail on a clean, flat mounting surface using the 6 rail holes. Align the rail parallel to the travel axis, torque bolts to manufacturer specifications, and ensure the carriage moves freely without binding. Lubricate per Thomson 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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Compatible alternatives & equivalents

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, 340 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+340)
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Profile Ball Rail: 20, 340 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+340)
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: 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, 1,240 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+1240)
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)
THOMSON
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, 820 mm Overall Lg, 20 mm Overall Wd, 19 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H20A+820)
Profile Ball Rail: 35, 1,640 mm Overall Lg, 34 mm Overall Wd, 29.5 mm Overall Ht, Steel (MPN 521H35A+1640)
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Profile Ball Rail: 35, 1,640 mm Overall Lg, 34 mm Overall Wd, 29.5 mm Overall Ht, Steel (MPN 521H35A+1640)
Profile Ball Rail: 15, 1,000 mm Overall Lg, 15 mm Overall Wd, 15.7 mm Overall Ht, Steel (MPN 521H15AD+1000)
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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: 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)