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 420CJ2 (MPN 351-100-40-21-B-70) provides a simple, non-threaded…
SKU 3G-OTH-598017
Need installation or engineering help?
Ask a question
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 420CJ2 (MPN 351-100-40-21-B-70) provides a simple, non-threaded isolation solution for industrial applications.
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 to dampen vibration and reduce noise in industrial machinery, pumps, and compressors. Its natural rubber construction provides flexibility and resilience for light to medium-duty isolation applications.
What are the specifications of the JW WINCO 351-100-40-21-B-70 rubber bumper?
The JW WINCO 351-100-40-21-B-70 is a cylindrical through-hole rubber bumper made from natural rubber with no thread. It is a plain bore vibration-isolating mount designed for simple press-fit or bolt-through installation in industrial equipment.
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 a sourcing partner, we provide genuine JW WINCO vibration-isolating mounts like the 351-100-40-21-B-70 to industrial buyers across multiple sectors.
How to install a JW WINCO through-hole rubber bumper?
Install the JW WINCO through-hole rubber bumper by inserting a bolt or rod through the plain bore and securing it to the mounting surface. Ensure the bumper is compressed evenly to achieve proper vibration isolation. Use a washer to distribute load and prevent pull-through.
Used in
Common applications for JW WINCOJW 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.









