We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

THOMSON External Retaining Ring: Type W External Retaining Ring, Steel - External Retaining Rings
THOMSONExternal Retaining Rings

THOMSON External Retaining Ring: Type W External Retaining Ring, Steel

The THOMSON Type W External Retaining Ring is a steel retaining ring with a 0.74 in outside diameter (MPN W250). It is compatible with manufacturer part number A4812.

SKU 3G-OTH-123338

Also listed as: W 250 · W-250

Brand
THOMSON
Item
External Retaining Ring: Type W External Retaining Ring, Steel
Category
External Retaining Rings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

THOMSON
Manufacturer Part Number
W250
Type
Steel
Material
Steel
Outside Dia
0.74 in
Compatible with Manufacturer Part Number
A4812

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The THOMSON Type W External Retaining Ring is a steel retaining ring with a 0.74 in outside diameter (MPN W250). It is compatible with manufacturer part number A4812.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the THOMSON Type W External Retaining Ring used for?

The THOMSON Type W External Retaining Ring is used to secure components on shafts or in housings in industrial machinery. It provides a reliable shoulder to hold bearings, gears, or other parts in place, preventing axial movement. Common applications include automotive assemblies, conveyor systems, and general equipment maintenance where a steel retaining ring is required.

What are the specifications of the THOMSON W250 retaining ring?

The THOMSON W250 is a Type W external retaining ring made of steel with an outside diameter of 0.74 in. Its manufacturer part number is W250, and it is compatible with manufacturer part number A4812. This ring is designed for external shaft applications and offers dependable retention in industrial settings.

Where to buy THOMSON retaining rings in worldwide?

You can source THOMSON retaining rings worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us to order the THOMSON W250 or other retaining rings; we provide competitive pricing and reliable supply for international buyers.

How to install a THOMSON external retaining ring?

To install a THOMSON external retaining ring, use retaining ring pliers designed for external rings. Compress the ring evenly and slide it into the shaft groove. Ensure the ring seats fully in the groove for proper retention. Always wear safety glasses and follow standard industrial practices. For the W250, verify the 0.74 in outside diameter matches your shaft groove.

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 external retaining rings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
STANDARD LOCKNUT Bearing Lock Washer: W04, Inch, Steel, 0.032 in Washer Thick, AN00/N00, 1200/1300
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W04, Inch, Steel, 0.032 in Washer Thick, AN00/N00, 1200/1300
STANDARD LOCKNUT Bearing Lock Washer: W022, Inch, Steel, 0.115 in Washer Thick, N000, 23000/23100
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W022, Inch, Steel, 0.115 in Washer Thick, N000, 23000/23100
STANDARD LOCKNUT Bearing Lock Washer: W34, Inch, Steel, 0.146 in Washer Thick, AN00/N00, 19 Tabs
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W34, Inch, Steel, 0.146 in Washer Thick, AN00/N00, 19 Tabs
STANDARD LOCKNUT Bearing Lock Washer: W02, Inch, Steel, 0.032 in Washer Thick, AN00/N00, 1200/1300
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W02, Inch, Steel, 0.032 in Washer Thick, AN00/N00, 1200/1300
STANDARD LOCKNUT Bearing Lock Washer: W22, Inch, Steel, 0.115 in Washer Thick, AN00/N00, 19 Tabs
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W22, Inch, Steel, 0.115 in Washer Thick, AN00/N00, 19 Tabs
STANDARD LOCKNUT Bearing Lock Washer: W32, Inch, Steel, 0.146 in Washer Thick, AN00/N00, 19 Tabs
STANDARD LOCKNUT
STANDARD LOCKNUT Bearing Lock Washer: W32, Inch, Steel, 0.146 in Washer Thick, AN00/N00, 19 Tabs

More from THOMSON

View all THOMSON parts
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, Super16 (MPN W1000SS)
THOMSON
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, Super16 (MPN W1000SS)
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, A61014/Super6 (MPN W375SS)
THOMSON
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, A61014/Super6 (MPN W375SS)
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, 1.18 in Outside Dia (MPN C625)
THOMSON
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, 1.18 in Outside Dia (MPN C625)
THOMSON External Retaining Ring: Type W External Retaining Ring, Steel, 0.87 in Outside Dia (MPN W375)
THOMSON
THOMSON External Retaining Ring: Type W External Retaining Ring, Steel, 0.87 in Outside Dia (MPN W375)
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, For 0.5 in Nominal Shaft Dia (MPN C500)
THOMSON
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, For 0.5 in Nominal Shaft Dia (MPN C500)
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, 1.301 in Outside Dia (MPN C750)
THOMSON
THOMSON External Retaining Ring: Type C External Retaining Ring, Steel, 1.301 in Outside Dia (MPN C750)
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, A81420/Super8 (MPN W500SS)
THOMSON
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel, A81420/Super8 (MPN W500SS)
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel (MPN W750SS)
THOMSON
THOMSON External Retaining Ring: Type W External Retaining Ring, Stainless Steel (MPN W750SS)