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Stainless Steel Conveyor Bearings

FRANTZ built its bearing reputation on the quality and performance of its Commercial grade Unground Non-Precision conveyor bearing assemblies for conveyor rollers.

Providing quality engineered conveyor bearing options for our customers is a FRANTZ value. Many of our Commercial grade Unground Non-Precision Conveyor Bearings are available in Stainless Steel which offers a greater range of protection from corrosion due to chemicals and the environment. These conveyor bearings are often used in outdoor, wash down, highly corrosive, and food processing environments. Because of the material chemistry, load ratings for Stainless Steel Commercial Unground conveyor bearings may be less than those published for similar carbon steel bearings. Please contact our Customer Service representatives for questions regarding load ratings.

FRANTZ utilizes two types of Stainless Steel in our Stainless Steel Commercial Unground Non-Precision Conveyor Bearing offerings:

300 Series Stainless Steel

This material is an austenitic non-magnetic steel which cannot be hardened by heat treatment. The steel hardens under pressure of use and provides reasonably good life under moderate loads. 300 Series Stainless Steel has a higher corrosion resistance than 400 Series Stainless Steel and can be used in high heat applications with temperatures up to 850°F with significantly reduced load rating. Load rating declines as temperature increases beyond normal ranges due to the effect of heat on the chemistry of the metal.

400 Series Stainless Steel

This material is a martensitic steel which is hardened by heat treatment. The stresses of the hardening transformation cause the material to exhibit permanent magnetic properties if magnetized in the hardened condition. Corrosion resistance is lower than 300 Series material but load carrying capability in the 400 Series is equal to related carbon steel bearing designs. These bearings can be used in applications with temperatures up to 450°F.


Regardless of the type of stainless material, the lubrication used should be compatible with the temperature. Dry lubricants such as Graphite or Molybdenum Disulfide should be considered in high temperature or high pressure applications as they do not smoke or vaporize away as with a petroleum based product. The degree of heat, the length of time a bearing is subjected to that heat, and the movement of air over the rollers (as in drying ovens) are factors that should be considered in selecting the type of lubrication for the bearing. Depending upon the application, customers may choose to run bearings dry but expected life will be reduced when running with no bearing lubrication. Click for Technical Information on standard conveyor bearing lubricants used in FRANTZ conveyor bearings. Contact our Customer Service representatives for consultative advice for lubricants in specialty applications.

In determining Stainless Steel material types for Commercial Unground Non-Precision Conveyor Bearing components, FRANTZ engineers selected a cost effective combination of material types best suited for our customer’s applications. The most important components that determine bearing life are the Outer Race, the Inner Race and the Ball complement. Click for Conveyor Bearing Nomenclature. The Stainless Steel series type combinations are as follows:

ModelTube SizeTube ThicknessOuter Race MatlInner Race MatlBall MatlOther Component MatlBearing Type
11241 1/418g300300400300Slip & Swage Fit
11261 1/418g300300400300Slip & Swage Fit
12501 3/816g300400400300Press Fit
12601 3/816g300400400300Press Fit
14901 3/816g300400400300Press Fit
12521 3/816g300400400300Press Fit
12751 3/818g300300400Press & Swage Fit
12761 3/818g300300400Press & Swage Fit
14051 1/218g300400400300Press & Swage Fit
14081 1/218g300400400300Press & Swage Fit
14101 1/218g300400400300Press & Swage Fit
14061 1/218g300400400300Press & Swage Fit
14071 1/218g300400400300Press & Swage Fit
14091 1/218g300400400300Press & Swage Fit
15261 5/816g400400400300Press Fit
15141 5/816g400400400300Press Fit
15201 5/816g400400400300Press Fit
15121 5/816g400400400300Press Fit
15111 5/816g400400400300Press Fit
15251 5/816g400400400300Press Fit
15501 5/816g400400400300Press Fit
16011 5/816g400400400300Press Fit
16021 5/816g400400400300Press Fit
16051 5/816g400400400300Press Fit
15151 5/816g400400400300Press Fit
15001 5/816g400400400300Press Fit
15011 5/816g400400400300Press Fit
15021 5/816g400400400300Press Fit
15031 5/816g400400400300Press Fit
15041 5/816g400400400300Press Fit
15091 5/816g400400400300Press Fit
15101 5/816g400400400300Press Fit
15211 5/816g400400400300Press Fit
16001 5/816g400400400300Press Fit
29001 5/818g400400400300Press Fit
29031 5/818g400400400300Press Fit
29101 5/818g400400400300Press Fit
107SS1.916g300300400300Press & Swage Fit
25122 1/211g300400400300Press Fit
25102 1/211g300400400300Press Fit
25422 1/211g300400400300Press Fit
25302 1/211g300400400300Press Fit
26002 1/211g300400400300Press Fit
26322 1/211g300400400300Press Fit
26382 1/211g300400400300Press Fit
26402 1/211g300400400300Press Fit
26052 1/211g300400400300Press Fit
26122 1/211g300400400300Press Fit
26102 1/211g300400400300Press Fit
26422 1/211g300400400300Press Fit
26302 1/211g300400400300Press Fit
27002 1/211g300400400300Press Fit
27302 1/211g300400400300Press Fit
31762 1/211g300400400300Press Fit
25072 1/211g300400400300Press Fit
25012 1/211g300400400300Press Fit
25022 1/211g300400400300Press Fit
25092 1/211g300300400300Press Fit
25052 1/211g300400400300Press Fit
25042 1/211g300400400300Press Fit
25452 1/211g300400400300Press Fit
31742 1/211g300400400300Press Fit
25002 1/211g300400400300Press Fit
25152 1/211g300400400300Press Fit
25322 1/211g300400400300Press Fit
25372 1/211g300400400300Press Fit
25392 1/211g300400400300Press Fit
25402 1/211g300400400300Press Fit
31823 1/2.30400400400300Counterbore & Press Fit

If you need a particular product manufactured in stainless steel, please contact our Customer Service Representatives.

Conveyor bearing materials can be substituted and modified to suit your application and our engineers have custom designed bearings and materials to meet customer needs. FRANTZ provides expert advice to help you select the correct materials and lubricants for your Stainless Steel Commercial Unground Non-Precision conveyor

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