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THOMSON SM20OPN Open Bearing Seal, Steel/Rubber, For 20 mm Shaft, MAM20/SSEM20 - Linear Bearing Seals
THOMSONLinear Bearing Seals

THOMSON SM20OPN Open Bearing Seal, Steel/Rubber, For 20 mm Shaft, MAM20/SSEM20

The THOMSON External Seal: Open Bearing Seal is a linear bearing seal constructed from steel and rubber. It is designed for use with a 20 mm nominal shaft diameter and is compatible with the MAM20 and SSEM20 bearing…

SKU 3G-OTH-120933

Brand
THOMSON
Item
SM20OPN Open Bearing Seal, Steel/Rubber, For 20 mm Shaft, MAM20/SSEM20
Part Number
SM20OPN
Category
Linear Bearing Seals
Available to Order
Also known as:SM20OPNTHOMSON
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

THOMSON
Manufacturer Part Number
SM20OPN
Type
Steel/Rubber, For 20 mm Nominal Shaft Dia, MAM20/SSEM20
Material
Steel/Rubber
Compatible with Manufacturer Part Number
MAM20

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

Product Description

The THOMSON External Seal: Open Bearing Seal is a linear bearing seal constructed from steel and rubber. It is designed for use with a 20 mm nominal shaft diameter and is compatible with the MAM20 and SSEM20 bearing models (MPN SM20OPN). This seal is intended to protect the bearing from contaminants.

Frequently Asked Questions

What is the THOMSON SM20OPN external seal used for?

The THOMSON SM20OPN external seal protects linear bearings from contaminants like dust and debris. It is designed for 20 mm nominal shaft diameter bearings, specifically the MAM20 and SSEM20 models, extending service life in industrial automation and material handling applications.

What are the specifications of the THOMSON SM20OPN bearing seal?

The THOMSON SM20OPN is an open bearing seal made from steel and rubber. It fits a 20 mm nominal shaft diameter and is compatible with MAM20 and SSEM20 bearing models. The steel/rubber construction provides durability while sealing out contaminants in linear motion systems.

Where to buy THOMSON SM20OPN bearing seals worldwide?

3G Electric supplies the THOMSON SM20OPN external seal to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact our team to source this genuine THOMSON linear bearing seal for your application.

How to install the THOMSON SM20OPN open bearing seal?

To install the THOMSON SM20OPN seal, first ensure the shaft and bearing housing are clean. Slide the seal over the 20 mm shaft and seat it against the bearing face. Secure it per the manufacturer's instructions, taking care not to damage the rubber lip. Proper installation prevents contamination ingress.

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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