Selection of DODGE E-Z KLEEN Polymer and Stainless Steel Housed Ball Bearings. P = (X x F R ) + (Y x F A ) F A C o

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Bertram Rogers
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1 Selection of DODGE and Stainless Steel Housed Ball Bearings DODGE ball bearings are primarily designed for radial loading. However, they have the capacity to carry thrust loads and combined radial/thrust loads. The maximum recommended load which can be applied is limited by various components in the system, such as bearing, housing, shaft attachments, speed and life requirements as listed in this catalog and the instruction manual that accompanies each bearing. DODGE ball bearings have been applied successfully when these limits have been exceeded under controlled operating conditions. Contact DODGE Engineering, , for applications which exceed these recommendations. Select a bearing from the Selection table that has a radial load rating at the operating speed equal to or greater than the calculated Equivalent Radial load for a desired L life. (Table 2 for English shaft sizes and Table 3 for metric shaft sizes) This simple method is all that is required for the majority of general applications and provides for occasional average shock loads. L Hours Life-is the life which may be expected for at least 9% of a given group of bearings operating under identical conditions. F Heavy Service-For heavy shock loads, frequent shock loads or severe vibrations, add up to 5% (according to severity of conditions) to the Equivalent Radial Load to obtain a Modified Equivalent Radial Load. Consult Application Engineering for additional selection assistance. A maximum thrust load value of C/ is recommended as a guide for general applications and will give adequate L life. If the thrust load exceeds this limit, it is advisable to use auxiliary thrust carrying devices, such as a shaft shoulder, snap ring, or a thrust collar. Where substantial radial load pulls the housing away from the mounting base, both the hold-down bolts and housing must be of adequate strength. Auxiliary load carrying devices, such as sheer bars, are advisable for side or end-loading of pillow blocks and radial loads for flange units. To determine the L hours life for loads and RPM s not listed use the following equation: C 3 L = ( ) 6667 P x RPM Where: L = Life, hours C = Dynamic Capacity, lbs. or N P = Equivalent Radial Load, lbs. or N RPM = Revolution per minute When the load on a ball bearing is solely a radial load with no thrust (axial) load, the Equivalent Radial Load (P) is equal to the actual radial load. However, when a thrust (axial) load is applied, the radial and thrust loads applied must be converted into an Equivalent Radial Load. The use of the X (radial factor) and Y (thrust factor) from Table convert the actual applied thrust and radial loads to an Equivalent Radial Load which has the same effect on the life of a bearing as a radial load of this magnitude. P = (X x F R ) + (Y x F A ) Where: P = Equivalent Radial Load, lbs. F R = Radial load, lbs. F A = Thrust load, lbs. e = Thrust load to radial load factor (Table ) X = Radial load factor (Table ) Y = Thrust Factor (Table ) C O = Basic static capacity (Table 2 or 3) To find X and Y, first calculate F A /C O to determine e. Calculate F A / F R and compare to e to determine the X and Y factors to use from Table. Substitute all known values into the Equivalent Radial Load equation. The Equivalent Radial loads (P) thus determined can be used in the L life formula or compared to the allowable Equivalent Radial Load rating desired in the expanded rating chart to select a bearing (Table 2). If calculated value of P is less than F R, use P=F R. Table F A C o e Radial/Thrust Factors If F A /F R is equal to or less than e If F A /F R is greater than e F A /F R e F A /F R > e X Y X Y Lubrication - DODGE Ball Bearings are lubricated at the factory and are ready to run. The bearings are initially lubricated with Chevron FM EP2 H Food Grade and should be relubricated with the same or some equivalent. For high speeds, high loads, extreme temperatures and other abnormal operating conditions, special greases may be required. Contact DODGE Application Engineering for recommendations on these types of applications. Misalignment - DODGE Ball Bearings are designed to allow a maximum of 2 static misalignment. These bearings are not suitable for dynamic misalignment. To ensure good alignment, mounting surfaces must be checked for flatness and must lie in the same plane. When tightening base bolts, each bolt should be alternately tightening in incremental torque values until full torque is achieved to prevent the angular shifting of the pillow block that occurs when one bolt is tightened to its full torque. Shimming may be required to minimize misalignment. Shaft Tolerances Normal Shaft Size Inches Recommended Shaft Tolerances SC & D-LOK Products (Inches) Recommended Shaft Tolerances GRIP TIGHT Ball Bearings Inches Up to -/ Over -/2 to PAGE B-2 PAGE B-4 B-5 PAGE B-88 PAGE B-9

2 EASY SELECTION Table 2 - Easy Selection For And Stainless Steel Housed Ball Bearing Mounted Bearings - Inch RING SIZE SHAFT SIZE DYNAMIC CAPACITY C,lbs. PAGE B-2 STATIC CAPACITY C,LBS 24 3/ /8 5/6 -/8-3/6 -/4 -/4-3/8-7/ / /8 -/ / L LIFE HOURS ALLOWABLE EQUIVALENT RADIAL LOAD RATINGS (lbs) AT VARIOUS RPM* *SLIGHT INTERFERENCE FIT REQUIRED WHEN OPERATING TO THE RIGHT OF THE HEAVY LINE OR IN THE SHADED AREA. FOR SC PRODUCT ONLY, OR USE D-LOK OR GT PRODUCTS Note: Because the allowable loads - especially at low speeds - are extremely high, be sure the shaft strength is adequate and the pillow blocks are base loaded. When imposed load is horizontal, be sure hold-down bolts are adequate. If bearings are cap loaded, full details on load, speed, and shaft size should be referred to DODGW Application Engineering. Use GT with labyrinth seals when operating right of heavy line PAGE B-4 B-6 PAGE B-88 PAGE B-9

3 Table 3 - Easy Selection For And Stainless Steel Housed Ball Bearing Mounted Bearings - Metric RING SIZE SHAFT SIZE DYNAMIC CAPACITY C, N STATIC CAPACITY C, N 24 2mm mm mm mm mm mm mm L LIFE HOURS ALLOWABLE EQUIVALENT RADIAL LOAD RATINGS (N) AT VARIOUS RPM* *SLIGHT INTERFERENCE FIT REQUIRED WHEN OPERATING TO THE RIGHT OF THE HEAVY LINE OR IN THE SHADED AREA. FOR SC PRODUCT ONLY, OR USE D-LOK OR GT PRODUCTS Note: Because the allowable loads - especially at low speeds - are extremely high, be sure the shaft strength is adequate and the pillow blocks are base loaded. When imposed load is horizontal, be sure hold-down bolts are adequate. If bearings are cap loaded, full details on load, speed, and shaft size should be referred to DODGW Application Engineering. Use GT with labyrinth seals when operating right of heavy line PAGE B-2 PAGE B-4 B-7 PAGE B-88 PAGE B-9

4 EASY SELECTION Table 4 - Easy Selection For -Housed Sleeve Bearing Mounted Units - Inch RADIAL LOAD RATINGS (LBS) AT VARIOUS REVOLUTIONS PER MINUTE (RPM) Shaft Series Up To Size 24 3/ RADIAL LOAD RATINGS (LBS) AT VARIOUS REVOLUTIONS PER MINUTE (RPM) Shaft Series Size PAGE B-2-3/6 -/ /4-7/ / /6-3/ / / /6 -/4 -/4-7/ / /6-3/ / Continuous operating temperature: -4 to 8 F PAGE B-4 B-8 PAGE B-88 PAGE B-9

5 Table 5 - Easy Selection For -Housed Sleeve Bearing Mounted Units - Metric RADIAL LOAD RATINGS (NEWTONS) AT VARIOUS REVOLUTIONS PER MINUTE (RPM) Shaft Series Up To Size RADIAL LOAD RATINGS (NEWTONS) AT VARIOUS REVOLUTIONS PER MINUTE (RPM) Shaft Series Size Continuous operating temperature: -4 to 82 C PAGE B-2 PAGE B-4 B-9 PAGE B-88 PAGE B-9

6 EASY SELECTION POLYMER HOUSINGS General Resistance to Chemical Groups at Room Temperature (2 C/68 F) Chemical Group Condition Or Subgroup Resistance Inorganic Acids concentrated - (non-oxidizing) diluted (:) +. highly diluted +. Inorganic Acids concentrated - (oxidizing) diluted (:) - highly diluted + Organic Acids concentrated = diluted (:) + highly diluted + Bases concentrated - diluted (:) - highly diluted = Salt Solutions acidic + neutral + basic = Aliphatic Hydrocarbons + oils and greases + Aromatic Hydrocarbons = phenols - Halogenated Hydrocarbons perhalogenated + partially halogenated - Alcohols monovalent + polyvalent = Ketones = Esters = Ethers + () except hydrofluoric acid (+) excellent resistance ( = ) good-fair resistance ( - ) fair-poor resistance ( blank ) no data available PAGE B-2 PAGE B-4 B- PAGE B-88 PAGE B-9

7 CHEMICAL RESISTANCE CHART Chemical Agent Solution 23 C (73 6 C (4 8 C (75 F) A Acetic Acid 5% + + = = Acetic Acid % + = = Acetic Acid 2% = - = - = Acetic Acid 8% = - = - = Acetic Acid % = = = Acetone = = Ammonium Chloride % + + Ammonium Hydroxide % = - Ammonium Hydroxide conc. - Aniline + = = B Benzene = = = = Bleaching Lye + + Brake Fluid Butane + Butanol = = Butyl Acetate + = C Calcium Chloride 5% Calcium Chloride % + + Calcium Hydroxide % + + Calcium Hypochlorite + + Carbon Disulphide + Carbon Tetrachloride + + Castor Oil + Chloroform - Chromic Acid 4% Citric Acid % Cottonseed Oil Cresol D Detergents % + + = - Detergents 25% + + = - Dibutyl Phthalate + + Diesel Oil + Dioxane + = - = E Ethanol + = Ether (diethyl-) + Ethyl Acetate = = Ethylene Dichloride - ( + ) excellent resistance ( = ) good-fair resistance ( - ) fair-poor resistance ( blank ) no data available PAGE B-2 PAGE B-4 B- PAGE B-88 PAGE B-9

8 EASY SELECTION CHEMICAL RESISTANCE CHART Chemical Agent F Ferrous Chloride 5% + Formic Acid 5% + = + Formic Acid 9% = - - Freon + G Gasoline + + Glycerol (Glycerin) = = Glycol = = Grease H Heptane + Hexane Hydrochloric Acid % + - = - - Hydrochloric Acid 9% Hydrofluoric Acid 5% Hydrofluoric Acid 5% Hydrogen Peroxide 3% + + Hydrogen Peroxide 3% = + IJ Isoamyle Alcohol = = Isopropanol = = KL Kerosene Lithium Chloride 43% + + M Methanol + = = Methylene Chloride Methyl Ethyl Ketone + + = + Methyl Salicylate + Mineral Oil Motor Oils N Nitric Acid % + - = - = Nitric Acid 4% Nitric Acid 7% O Oleic Acid % Olive Oil P Perchloroethylene + = = = Petroleum Ether + Phenol = ( + ) excellent resistance ( = ) good-fair resistance ( - ) fair-poor resistance ( blank ) no data available PAGE B-2 Solution Conc. PAGE 23 C (73 F) B-2 PAGE 6 C (4 8 C (75 F) PAGE B-9

9 CHEMICAL RESISTANCE CHART Chemical Agent Solution 23 C (73 6 C (4 8 C (75 F) P Phosphoric Acid 3% Phosphoric Acid 3% Phosphoric Acid 85% Potassium Chloride % + = - Potassium Dichromate % + Potassium Hydroxide % Potassium Hydroxide % Potassium Hydroxide 6% Potassium Permanganate % S Silicone Fluids Soap Solution % + + = = - Sodium Bicarbonate % + = - Sodium Bisulfate 5% + Sodium Bisulfite 5% + - Sodium Bisulfite % + - = - Sodium Carbonate % Sodium Carbonate 2% Sodium Chloride % + + = + - Sodium Hydroxide % Sodium Hydroxide % Sodium Hydroxide 6% Sodium Hypochlorite 5% + - Sodium Hypochlorite % + = - Sulfuric Acid 3% Sulfuric Acid 3% Sulfuric Acid 98% T Tetrahydofuran = Toulene + = Transformer Oil Trichlorethylene = Triethylamine = = Turpentine + V Vaseline Vegetable Oils W Water + + = = - White Spirits + X Xylene + ( + ) excellent resistance ( = ) good-fair resistance ( - ) fair-poor resistance ( blank ) no data available PAGE B-2 PAGE B-4 B-3 PAGE B-88 PAGE B-9

Catalog June Mounted Bearings

Catalog June Mounted Bearings Catalog June 2014 Mounted Bearings Contents. Ultra Kleen Features/Benefits.... 1-3 How to order/nomenclature............................................. 1-6 Easy Selection.... 1-7..................................................