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THOMSON SM12 External Closed Bearing Seal, Steel/Rubber, for 12 mm Shaft - Linear Bearing Seals
THOMSONLinear Bearing Seals

THOMSON SM12 External Closed Bearing Seal, Steel/Rubber, for 12 mm Shaft

The THOMSON External Seal: Closed Bearing Seal is a linear bearing seal made of Steel/Rubber. It is compatible with manufacturer part number MAM12 and is designed for a 12 mm nominal shaft diameter. This seal is…

SKU 3G-OTH-120865

Also listed as: SM 12 · SM-12

Brand
THOMSON
Item
SM12 External Closed Bearing Seal, Steel/Rubber, for 12 mm Shaft
Part Number
SM12
Category
Linear Bearing Seals
Available to Order
Also known as:SM12THOMSON
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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
SM12
Type
Steel/Rubber, For 12 mm Nominal Shaft Dia, MAM12/SPM12
Material
Steel/Rubber
Compatible with Manufacturer Part Number
MAM12

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

Product Description

The THOMSON External Seal: Closed Bearing Seal is a linear bearing seal made of Steel/Rubber. It is compatible with manufacturer part number MAM12 and is designed for a 12 mm nominal shaft diameter. This seal is identified by manufacturer part number SM12.

Frequently Asked Questions

What is the THOMSON SM12 external seal used for?

The THOMSON SM12 external seal is a closed bearing seal used to protect linear bearings from contaminants. It is designed for a 12 mm nominal shaft diameter and is compatible with MAM12 and SPM12 bearing units. This steel/rubber seal helps extend bearing life in industrial automation and motion control applications.

What are the specifications of the THOMSON SM12 seal?

The THOMSON SM12 is an external closed bearing seal made of steel and rubber. It fits a 12 mm nominal shaft diameter and is compatible with manufacturer part numbers MAM12 and SPM12. The manufacturer part number for this seal is SM12. It is designed for use with THOMSON linear bearing systems.

Where to buy the THOMSON SM12 seal worldwide?

The THOMSON SM12 seal is available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this THOMSON linear bearing seal.

How to install the THOMSON SM12 external seal?

To install the THOMSON SM12 external seal, first ensure the shaft and housing are clean. Slide the seal over the shaft end and press it into the bearing housing recess. Verify the seal sits flush and does not bind the shaft. Follow standard linear bearing seal installation practices for best results.

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.
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THOMSON Products

3G Electric supplies THOMSON linear bearing seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Closed bearing seal for linear bearing applications. Constructed of steel and rubber, designed for use with a 1-inch nominal shaft diameter. Prevents contamination and retains lubrication in linear motion systems
THOMSON
Closed bearing seal for linear bearing applications. Constructed of steel and rubber, designed for use with a 1-inch nominal shaft diameter. Prevents contamination and retains lubrication in linear motion systems

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