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

3G Electric
RFQ CartGet a QuoteSign inSign up
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber - Plain Bore Vibration-Isolating Mounts
JW WINCOPlain Bore Vibration-Isolating Mounts

JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber

The JW WINCO Through-Hole Rubber Bumper is a cylindrical plain bore vibration-isolating mount made from natural rubber with no thread. This SKU 420CN2 (MPN 351-80-40-21-B-55) provides a simple, non-threaded isolation…

SKU 3G-OTH-597906

Brand
JW WINCO
Item
Through-Hole Rubber Bumper: Cylindrical, Natural Rubber
Category
Plain Bore Vibration-Isolating Mounts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

JW WINCO
Manufacturer Part Number
351-80-40-21-B-55
Type
Natural Rubber, No Thread Thread Size
View Full Spec Sheet

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

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

Product Description

The JW WINCO Through-Hole Rubber Bumper is a cylindrical plain bore vibration-isolating mount made from natural rubber with no thread. This SKU 420CN2 (MPN 351-80-40-21-B-55) provides a simple, non-threaded isolation solution for industrial applications.

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 a JW WINCO through-hole rubber bumper used for?

A JW WINCO through-hole rubber bumper is a plain bore vibration-isolating mount used in industrial equipment to dampen vibration and reduce noise. Its cylindrical natural rubber design provides a simple, non-threaded isolation solution for machinery, pumps, and compressors across manufacturing and processing plants.

What are the specifications of the JW WINCO 351-80-40-21-B-55 rubber bumper?

The JW WINCO 351-80-40-21-B-55 is a cylindrical through-hole rubber bumper made from natural rubber with no thread. It is a plain bore vibration-isolating mount, SKU 420CN2, designed for straightforward installation without threaded fasteners, suitable for light to medium industrial isolation needs.

Where to buy JW WINCO rubber bumpers worldwide?

3G Electric supplies JW WINCO rubber bumpers worldwide, handling full logistics and customs clearance for global delivery. As an industrial solutions provider, we source genuine JW WINCO parts like the 351-80-40-21-B-55 and support procurement teams with technical guidance and reliable shipping to any international destination.

How to install a JW WINCO through-hole rubber bumper?

To install a JW WINCO through-hole rubber bumper, insert a bolt or rod through the plain bore and secure it to the mounting surface. Ensure the natural rubber is not over-compressed; use a washer to distribute load evenly. Tighten to manufacturer torque specs to avoid damaging the bumper while maintaining effective vibration isolation.

Used in

Common applications for JW WINCO
Machinery assembly — JW WINCO self-locking bearing locknuts (e.g., 1804.1-M50X1.5) for securing bearings on shafts in gearboxes and conveyors.
Fixture building — JW WINCO horizontal U-latch toggle clamps (e.g., 851.3-700-T6) for quick clamping in welding jigs and assembly fixtures.
Material handling — JW WINCO quick-release hoist rings (e.g., 1135-M12-17-ST) for lifting heavy components in manufacturing cells.
Shaft positioning — JW WINCO one-piece shaft collars (e.g., 5WG46/A) for retaining bearings or acting as stops on linear motion systems.
Linkage systems — JW WINCO stainless steel clevis rod ends (e.g., 8NXBIS) for connecting pneumatic cylinders or actuators in automated equipment.
Clamping arm extension — JW WINCO rigid clamping arm extenders (e.g., 801.1-85-16-ST) for increasing reach on toggle clamps in custom fixtures.

JW WINCO Products

3G Electric supplies JW WINCO plain bore vibration-isolating mounts. 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 →

More from JW WINCO

View all JW WINCO parts →
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-40-20-13.5-B-70). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-40-20-13.5-B-70). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-25-20-10.5-B-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-25-20-10.5-B-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 451-60-50-21-D-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 451-60-50-21-D-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-60-30-21.5-DD-70). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-60-30-21.5-DD-70). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-100-60-21-DD-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-100-60-21-DD-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-20-30-8.5-B-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-20-30-8.5-B-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-40-28-13-DD-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 351-40-28-13-DD-40). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 451-60-30-21.5-D-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.
JW WINCO
JW WINCO Reinforced Through-Hole Rubber Bumper: Cylindrical, Natural Rubber, No Thread Thread Size (MPN 451-60-30-21.5-D-55). Key specifications — attr1060237: Natural Rubber; attr1060241: No Thread.