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THOMSON Profile Ball Rail: 25, 1,240 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht - Thomson 500 Series Ball Profile Rails
THOMSONThomson 500 Series Ball Profile Rails

THOMSON Profile Ball Rail: 25, 1,240 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht

The Thomson 500 Series Ball Profile Rail (Profile Ball Rail: 25) is a steel linear motion component with a nominal rail size of 25, an overall length of 1,240 mm, overall width of 23 mm, and overall height of 22.7…

SKU 3G-OTH-123814

Also listed as: 521H25A1240 · 521H25A 1240 · 521H25A-1240

Brand
THOMSON
Item
Profile Ball Rail: 25, 1,240 mm Overall Lg, 23 mm Overall Wd, 22.7 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
521H25A+1240
Type
Steel
Overall Lg
1,240 mm
Size
25
Overall Ht
22.7 mm
Overall Wd
23 mm
Nominal Rail Size
25

Technical Documents

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

Product Description

The Thomson 500 Series Ball Profile Rail (Profile Ball Rail: 25) is a steel linear motion component with a nominal rail size of 25, an overall length of 1,240 mm, overall width of 23 mm, and overall height of 22.7 mm. This product, identified by manufacturer part number 521H25A+1240, is designed for industrial equipment applications requiring precise linear guidance.

Frequently Asked Questions

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

The Thomson 500 Series Ball Profile Rail provides precise linear guidance in industrial automation, packaging, and material handling equipment. Its steel construction and nominal size 25 profile support smooth, low-friction motion for machine tools, robotics, and assembly systems requiring accurate positioning.

What are the specifications of the Thomson 521H25A+1240 profile rail?

The Thomson 521H25A+1240 is a 500 Series Ball Profile Rail with nominal rail size 25, overall length 1,240 mm, overall width 23 mm, and overall height 22.7 mm. It is made of steel and designed for linear motion applications. The brand is THOMSON.

Where to buy Thomson profile rails in worldwide?

You can source Thomson 500 Series Ball Profile Rails through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on the 521H25A+1240 or other Thomson linear motion components.

How to install a Thomson ball profile rail?

Install the Thomson profile rail on a clean, flat mounting surface using the specified bolt pattern. Align the rail parallel to the direction of travel, torque fasteners to manufacturer recommendations, and verify straightness with a dial indicator. Lubricate the rail before use and follow Thomson's generic linear rail 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Profile Ball Rail: 25, 1,000 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25A+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 521H25A+1000)
Profile Ball Rail: 25, 3,000 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25ARL3000)
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Profile Ball Rail: 25, 3,000 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25ARL3000)
Profile Ball Rail: 25, 1,600 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25A+1600)
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Profile Ball Rail: 25, 1,600 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel (MPN 521H25A+1600)
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: 25, 820 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+820)
Profile Ball Rail: 25, 640 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+640)
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Profile Ball Rail: 25, 640 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+640)
Profile Ball Rail: 25, 340 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+340)
THOMSON
Profile Ball Rail: 25, 340 mm Overall Lg, 23 mm Overall Wd, 22.7 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H25A+340)

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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: 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)
Profile Ball Rail: 35, 1,240 mm Overall Lg, 34 mm Overall Wd, 29.5 mm Overall Ht, Steel (MPN 521H35A+1240)
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Profile Ball Rail: 35, 1,240 mm Overall Lg, 34 mm Overall Wd, 29.5 mm Overall Ht, Steel (MPN 521H35A+1240)
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, 1,000 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: 45, 885 mm Overall Lg, 45 mm Overall Wd, 37 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H45A+885)
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Profile Ball Rail: 45, 885 mm Overall Lg, 45 mm Overall Wd, 37 mm Overall Ht, Steel, 6 Rail Holes (MPN 521H45A+885)