1 Timken Tapered Roller Bearing Housed Units 45 . 45 . N1. N2. H2 H2. N B B B B. d1 d1. d1 d1. Bolt Dia. H. H. H1. H1 E E E. A A. Bolt Dia. A2 A2 A3 A2 A2 A3 A2 A3. J Min A A. J Max J Min Bolt Dia. L 2-1/4" thru 3" Shaft Size 3-3/16" thru 5" Shaft Size A A. J Max L 1-3/16" thru 3" Shaft Size 3-3/16" thru 3-1/2" Shaft Size B B. B B B. J L D d1 D d1. N2 H d1 D H d1 D H d1. L1 A A1 A A1. L A2. L3 A1. J A1 J A1. A1 A1 A1. L. 1-3/16 thru 3 Shaft Size 3-3/16 thru 4-1/2 Shaft Size A A A. 1-3/16 thru 3 Shaft Size 3-3/16 thru 3-1/2 Shaft Size 3-15/16 thru 5 Shaft Size B B. B. N2 H d1 H1 d1 H1. H N H2 H1 d1. N1 L2. L1. Type E Tapered Roller Bearing Designs 1-3/8 thru 3 Shaft Size L Housing Width Housing Width 1-3/16 thru 3 Shaft Size 3-3/16 thru 4 Shaft Size Table of Contents Quality and Performance Come Standard 3. Outstanding Performance from the Bearing Expert 4. Enhanced Performance, Lower Total Cost of Ownership 5.
2 Timken Type E Tapered Roller Bearing Housed unit 6. Shaft Size Ranges, Designs, Nomenclature 6. Common Applications 7. Timken Type E Tapered Roller Bearing Housed unit Selection 8-13. Table 1: Timken Type E Tapered Roller Bearing Load Rating Selection Table 14. Table 2: Housing Ratings Type E Pillow Blocks: 2-Bolt Base, 4-Bolt Base 15. Table 3: Tapered Roller Bearing Radial and Thrust Factors;. Speed and Slip-Fit Load Limits 15. Bearing Life Calculations / Selection 16-18. Bearing Life, Rating Life, Bearing Life Equations 16. Timken Roller Housed unit Selection 16. Table 4: Equivalent Radial Load Calculations 17. Installation / Lubrication 18-19. Table 5: Recommended Shaft Tolerance 19. Table 6: Recommended Set Screw Tightening Torque 19. Table 7: Suggested Relubrication Intervals (based on 8 hours/day operation) 19. Timken Type E Tapered Roller Bearing Interchange 20-22. Warnings and Cautions 23.
3 Every reasonable effort has been made to ensure the accuracy of the information contained in this writing, but no liability is accepted for errors, omissions or for any other reason. 2. Quality and Performance Come Standard The Timken name stands for high quality and outstanding performance. Using our capabilities in Bearing technology, manufacturing, engineering support and distribution, we provide our customers with smart, cost- effective friction management and power transmission solutions that help them outperform the competition. Our latest innovation is Quality Solutions Ontime Delivery Expanded our new series of Timken Housed unit Offering As the only premium Bearing We know short lead times Type E Roller Housed Units . manufacturer to also make are critical to keeping From the manufacturer that Performance life testing super-clean, high-alloy your operations up and brought you reliable Fafnir.
4 Data yields a design life for Bearing steel, we know how running. Many of our Type ball Bearing Housed Units our new Type E Bearing that critical quality materials E Roller Housed Units are and Timken SAF pillow is 55 percent higher than are to product performance. in stock for immediate blocks, comes a growing line current industry leading We also implement the shipping. For special of Roller Bearing Housed Units . designs, which utilize Timken Quality Management orders, we work quickly to We've expanded our offering standard Timken bearings. System in every plant manufacture and deliver to include Timken Type E. At Timken , our brand stands worldwide, so each Bearing your products on time. Housed Units featuring our for outstanding quality, product meets the same own advanced Tapered Roller from product design and high performance standards bearings and seals. manufacturing to engineering no matter where in the support and distribution.
5 World it is manufactured. Our commitments to quality, service and delivery add up Dependable Service to an unbeatable value for Our Roller Housed Units are customers everywhere. backed with the service of our industry leading experts, who are ready to assist you with product design, application knowledge and 24/7 field engineering support to help improve uptime and maximize equipment performance. 3. Outstanding Performance from the Bearing Expert Timken engineers have applied more than 110 years of expertise in Bearing technology and leadership in Tapered Roller bearings to bring you an optimized performance Tapered Roller Bearing Housed unit . We have improved our own design to create the new standard in performance. Bearing Life Analysis Comparison Relative Predicted Life Enhanced Timken Bearing Standard Timken Bearing Leading Competitor Bearing Analytical analysis of the new, optimized Timken Bearing compared to a standard Timken Bearing (used widely by most Type E.)
6 Suppliers) and a new Bearing from a leading industry competitor. Note: Life tests of Timken Tapered Roller bearings verified by Germanischer Lloyd. Seal Performance (Mud/Salt Slurry Ingress Test) Seal Performance (Water Ingress Test). 2000 200. Water Ingress (g). Slurry Ingress (g). 1000 100. 0 0. Timken Double Lip Seal Leading Competitor Timken Double Lip Seal Leading Competitor Single Lip Seal Single Lip Seal Slurry ingress test results of the optimized Timken Type E Water ingress test results of the new Timken Type E seal seal compared with the single lip seal design of a leading compared with the single lip seal design of a leading competitor. competitor. Seal operating at 250 rpm in a salt and mud slurry Seal operating at 250 rpm with three gallons of water per minute mixture for 75 hours. directed at the shaft-seal interface for four hours. From the bearings, seals and grease to housings and collars, our innovative design incorporates features that can help withstand some of the most demanding application conditions.
7 This can help decrease downtime, maintenance intervals and the overall cost of ownership. 4. Enhanced Performance, Lower Total Cost of Ownership Enhanced Double Lip Seals -40 F to +300 F (-40 C to Performance Bearings By helping keep debris and +149 C) and is compatible Timken Type E Tapered Roller water out while retaining with calcium- and lithium- bearings have a significantly grease longer than seals used thickened greases. higher load carrying capability. in industry standard designs, Performance life testing Housings Timken -designed double lip and Locking Collars data yields a design life for seals help lower maintenance Our design incorporates our new Type E Bearing that costs. The seals in our Type ASTM A48 Grade 30 Cast is 55 percent higher than E Housed Units optimize lip Iron for the housing. Electro- current industry leading contact to help improve grease deposition coating (E-coating).
8 Designs, which utilize retention and significantly on the housing and collar standard Timken Tapered Roller reduce contaminant ingress. provides better corrosion bearings. Our Type E bearings resistance than the industry also experience lower standard powder coating. internal contact stresses E-coating also helps reduce and frictional drag due to overall maintenance costs by optimized Bearing profiles and protecting exposed surfaces. improved surface textures. This results in up to three- In addition, our Type E Housed times greater misalignment Units are dimensionally capability and improved interchangeable with lubrication performance than Premium Grease current suppliers for all key industry standard designs. Timken Roller Housed characteristics, including Units further help reduce the bolt hole and shaft maintenance costs because centerline dimensions. they use Timken Premium All Purpose Industrial Grease.
9 Our unique grease formulation contains extreme-pressure and anti-wear additives as well as corrosion inhibitors. This grease works effectively in applications with operating temperatures ranging from 5. Timken Type E Tapered Roller Bearing Housed unit Type E Tapered Roller Bearing Housed Units are available in a wide variety of sizes and configurations to meet the requirements of demanding applications. Popular part numbers are in stock for immediate availability. Metric sizes also are available in shaft diameters ranging from 35 mm to 125 mm. Shaft Size Ranges Housed unit Configuration Inches (in) Metric (mm). Pillow Block: 2-Bolt Base 1-3/16 thru 3-1/2 35 thru 90. Pillow Block: 4-Bolt Base 2-1/4 thru 5 60 thru 125. Flange: 4-Bolt 1-3/16 thru 4-1/2 35 thru 115. Flange: Piloted 1-3/16 thru 5 35 thru 125. Take Up: Wide Slot 1-3/8 thru 3 35 thru 75. Take Up: Top Angle 1-3/4 thru 4 45 thru 100.
10 Designs Pillow Block: 2-Bolt Base Pillow Block: 4-Bolt Base Flange: 4-Bolt Flange: Piloted Take Up: Wide Slot Take Up: Top Angle Nomenclature Housing Construction Options: Bore Bore P2B = Pillow Block: 2-Bolt, Cast Iron Designation: Size: P4B = Pillow Block: 4-Bolt, Cast Iron 1 3/16 = 1-3/16 . 4BF = Flange: 4-Bolt, Cast Iron 2 15/16 = 2-15/16 . PF = Flange: Piloted, Cast Iron 5 = 5 Other Data: TU = Take Up: Wide Slot, Cast Iron 35MM = 35 mm SGT = Shaft Guarding Technology TTU = Take Up: Top Angle, Cast Iron 120MM = 120 mm EC = End Cover E P2B TRB 2 15/16 L SGT. Seal Options: Housing Options: Rolling Element: Blank = Standard 2 Lip Radial Seal E = Type E dimensions TRB = Tapered Roller Bearing L = Labyrinth Metallic Seal 6. Typical Conveyor Application Tail Pulley Head Drive Pulley Take-Up Bend Pulleys Take-Up Pulley Common Applications Common applications include Features and Benefits significantly reduce Specially designed collar processing and material Enhanced Tapered Roller contaminant ingress.