The GADROCK® sleeve is an alternative to the bronze and stainless steel sleeve. It is constructed to stand up to longer wear and tear. This makes it much more durable, so you can use this product in a variety of applications!
Rotary equipment is vital for many industrial processes and are designed to operate for years. This is where the GADROCK® sleeve can reduce maintenance and equipment downtime by preventing damage to shafts and bearings, which is typically caused by contamination entering the housing or lubrication loss. Pumps with these features eliminate a majority of failures.
Use a GADROCK® sleeve in these applications:
How can you tell how hard a material is? Various methods have been developed to measure a material’s hardness. They include the Rockwell, Brinell, and Vickers scales. The load applied and size of the indent used are dependent on the type of scale being used.
Gadrock® is a propriety high carbon martensitic stainless steel. It has high strength with good hardness & wear resistance. These sleeves are heat-treated using our Gadrock® process. Gadrock® has good corrosion resistance.
Martensitic steel, known as the “workhorse” of stainless steels because of its strength and durability, is a favorite for many applications. It’s strong enough for industrial manufacturing equipment in marine use (and on land), yet versatile enough to create long lasting equipment.
Here Are The Facts
70% Harder Than 304SS Shaft Sleeves
130% Harder Than #660 Bronze Shaft Sleeves
Hardness Rockwell “B “ Scale
# 660 Bronze @ 65
304SS @ 70
Gadrock @ 120
Check with our with engineering department about your specific application if there is any doubt about usage for caustics, acids, and certain chemicals.
Toughness is a fundamental measure of how well a material can absorb shock and resist fracture.
Bronze shaft sleeves wear down quickly due to contact with particles from process medium. The particles are eventually imbedded in the sleeve causing wear on the mechanical seal allowing for leakage due to seal failure and can shorten seal life, even when using a reasonably clean process medium.
That is why when we say our sleeves are tougher, we can confidently say we are 800% tougher than the average bronze shaft sleeve.
A Coated Shaft Sleeve Can Wear Thru The Coating Or The Coating Can Be Heat Checked From The Thermal Expansion Resulting In Excess Leakage & Sleeve Failure.
A shaft sleeve that is coated only on the inside has a finite life span, which can be shortened even further if worn through or contaminated from potentially harsh working environments.
A standard shaft sleeve is normally manufactured from basic carbon steel and just coated in hardened materials. Carbon steel sleeves with coatings can wear quickly and could prematurely fail due to abrasive slurries. A shaft sleeve that has a thin layer of hardened coating, although offering some durability when meeting abrasions, will eventually cause seal failure by peeling off which makes it not worth the investment. Gadrock® sleeves have longer and more consistent wear resistance capabilities and are extremely hard throughout the entire shaft sleeve material.