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Timken 165RYL1451

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Distributor Bearing Wholesalers Incspecializes as seller an Timken 165RYL1451 to companies throughout the USA, Canada, Mexico and parts of Europe. The headquarters is located in Singapore where a 10,000 square foot facility includes offices and warehousing space. Here at Distributor Bearing Wholesalers Inc, our team is proud to supply BB, large distributors and smaller companies and individuals with a huge selection of Timken 165RYL1451 that are unparalleled in the industry. We offer a size range from 0.8 mm to 5 inch, in nearly every material and grade required per customer specifications. So, if you need a reliable source for precision and non-precision balls and rollers any of the following materials we are your people! What good is the BEST product without the BEST quality of care? You’re in good hands with the Distributor Bearing Wholesalers Inc. We want to ensure you receive the utmost in quality products, with impeccable customer service that you will not receive anywhere else. This philosophy is what sets us apart from our competitors. ervices & Solutions from Distributor Bearing Wholesalers Inc range from new machine development and design verification, to reconditioning, Integrated Maintenance Solutions, training and remote monitoring. We can help you reduce your operation’s energy usage and improve its sustainability. And we will work with you to define where to focus, and how to get the fastest return on your investment.

Cylindrical Roller Bearings Cylindrical Roller Radial Bearings - Four-Row Timken Part Number 165RYL1451Timken Part Number 165RYL1451, Cylindrical Roller Radial Bearings - Four-RowTimken’s four-row cylindrical roller bearings are designed for the rigors of daily use in applications where moderate and high speeds, high radial loads, elevated temperatures and debris are constant challenges. Designed with well-balanced cross sections, these bearings provide high-radial-load capacity within the bearing envelope.The radial internal clearance (RIC) for the bearing assembly must be included when ordering either a) the complete assembly or b) with the inner-ring set. It is advisable to order the inner-ring set independent of the outer ring set when the final grind of the inner-ring O.D. is accomplished after mounting on the roll neck.The RY bearing style incorporates two outer races with tripleflanges (solid ribs). The inner race is usually single-piececonstruction. The outer assemblies consist of the outer race,rollers and cages, which create a unitized construction. Handlingis made simple by this design. A loading slot is used for rollerinsertion. Lubrication is generally accomplished via slots in thefaces of the outer ring. The cage is single-piece, fully machined brassor steel material. The roller pockets are staggered betweenthe races.Two outer rings with integral ribs.Two inner rings.RY-2 – with lubrication grooves and holes on outer rings.RY-3 – without lubrication grooves and holes on outer rings.Two solid-steel or brass cages. Bearing Dimensions | Specifications | Mounting Data | Sub Assembly Part Numbers | Applications | Design Benefits | Radial Internal Clearance (RIC) | Lubrication | Material | Mounting Design and Fitting Practice | Main Design Types

Bearing Dimensions

Bore d 165.100 mm6.500 in
O.D. D 225.425 mm8.8750 in
Width B 168.275 mm6.6250 in
Width C 168.275 mm6.6250 in
DUR/DOR F/E 181.000 mm7.1260 in
Type RY-3


Static Load Rating Co 1158 kN260000 lbf
Dynamic Load Rating C11 2264 kN508000 lbf
Weight 43.200 lb

Mounting Data

Chamfer rsmin 1.50 mm0.06 in
Chamfer r1smin2 1.5 mm0.060 in
Backing Shaft Diameter ds 176.2 mm6.94 in
Backing Housing Diameter Ds 211.0 mm8.31 in

Sub Assembly Part Numbers

Inner-Ring Set 165ARYSL1451
Outer-Ring Set 181RYSL1451


Engineered primarily for rolling mill roll-neck applications,Timken’s four-row cylindrical bearings are commonly used inwork roll or back-up roll positions in flat product, long productand structural mills.

Product Features

Available in sizes 140 mm I.D. – 2000 mm O.D. (5.512 in – 78.740 in).Case-hardened rings and rollers enhance durability.Inner races are interchangeable with outer assemblies.Manufactured to P6 boundary and P5 run out tolerances.Roller profiles are custom designed and manufactured for optimum performance.Straight and tapered bores are available.

Design Benefits

Our most common configurations available are types RY , RYL andRX. However, Timken also will custom design and manufacturebearings for your particular size and application requirements.If you have a new mill application, our engineers will work withyou in the earliest design stages to help you select the rightbearings.

Radial Internal Clearance (RIC)

Timken’s standard bearings offer different clearances, such asC3 or C4 according to DIN 620-4. If needed for your application,they can be furnished with a tapered bore.

Timken supplies inner rings in two ways: a finished state with noadditional grinding required or a semi-finished condition withappropriate grind stock. Semi-finished inner rings allow milloperators to optimize the roll’s precision by finish grinding theinner ring after mounting it onto the roll.

The part numbers for these bearings and inner-ring assembliesare identified by a CF suffix.


Timken four-row cylindrical roller bearings can be used withgrease, oil-air, oil-mist or circulating-oil systems. The bearingsmust be correctly lubricated for maximum performance througheither lubrication grooves, holes in the outer-ring O.D. or throughintegrated face slots on the outer-ring faces. See detailed designtypes on pages 84-87 for further information on the standardlubrication configurations by bearing type.


Our bearings are designed to provide superior size stability,fracture toughness and reliability. By using only high quality,carburized alloy, and applying a special heat-treatment duringthe manufacturing process, we are able to produce bearingsthat can withstand the heavy stresses and impact loading oftenexperienced by multi-row cylindrical roller bearings used inrolling mills.

Mounting Design and Fitting Practice

The cylindrical roller bearing design accommodates radialloading only, therefore, a separate thrust bearing must be usedto provide axial shaft location.

The housing fitting practice usually results in a loose fit tofacilitate easy removal at regular maintenance intervals. Thepreferred shaft fit is tight. There are occasions where loose shaftfits are tolerated, such as on some roughing-mill equipment. Inthe cases where a shaft fit is loose, inner-race bore lubricationgrooves must be incorporated in the bearing. Check with yourTimken representative for a more details on mounting four-rowcylindrical roller bearings. Mounting information also is availablein the Timken Engineering Manual (order no. 10424) on timken.com/catalogs.

In order to facilitate the dismounting, face slots can be added onthe inner rings (W30B modification code).

Inner rings can be ordered separately from the outer assemblyin order to equip additional spare rolls. Inner- and outerringassemblies are interchangeable in regard to internalclearance.

Main Design Types

Optimized rolling elements and race geometry provides highradial-load capacity within the bearing envelope. In addition,multiple cage designs and materials allow for design flexibilityand preset radial clearance simplifies the installation process.

Distributor Bearing Wholesalers Inc supports farmers and equipment manufacturers in their efforts to feed the world, providing products and services designed to deliver high performance, extend equipment life and enhance productivity. Precision tolerances – meet ABEC 5F (ISO P5) or ABEC 7F (ISO P4) for high running accuracy. Material selection – standard offerings include 440C stainless steel and 52100 chrome steel. Superfinished raceways – provide a smooth surface finish to reduce internal friction and vibration. High quality ball complement – grade 5 or better balls optimize smooth rolling performance. Retainers – various configurations and materials to meet performance needs. Self-contained, pre-assembled and pre-lubricated Reduces maintenance costs, increases miles per bearing and fuel efficiency If you know heavy mining equipment, you already know Timken 165RYL1451 We’ve been a top OEM supplier to the industry for five decades running. And along the way, our Timken 165RYL1451- and BB products have become the global standard for custom-designed bearings in mining trucks and excavators. Distributor Bearing Wholesalers Inc’s newest innovations build on this legacy by taking performance to new heights—delivering the quietest, coolest and highest-capacity bearings in the market. Timken 165RYL1451 engineers never stop pushing the boundaries of performance. Case in point: Our new-generation Timken Bearings series—addressing end users’ needs for maximum possible output and durability in the most severe applications. These large-bore taper, cylindrical and spherical bearings are built to withstand the environmental risks that heavy-duty surface mining equipment demands. Delivering the ultimate in performance, Timken 165RYL1451 combines special alloys capable of 200°C continuous ambient temperatures with an optimized roller complement and retainer design—enabling the highest load capacity and allowable speed for a given bearing type and size. You’ll find Distributor Bearing Wholesalers Inc-engineered bearings inside everything from giant haulers to draglines, electricrope shovels to drills, pulverizers, conveyors and beyond. That’s because our OEM partnerscan count on us to engineer more long-lasting reliability and durability into their criticalsurface mining equipment—so that you can achieve greater throughput, less unplanneddowntime and easier preventative maintenance.

Distributor Bearing Wholesalers Inc began making air-melted alloy steel to serve the bearing industry’s need for high-quality steel. Now, we place Timken 165RYL1451 in applications throughout industrial markets worldwide. We are ready to engineer a solution for you. We offer more than 450 grades of steel and supply the broadest range of special bar quality (SBQ) product , including rolled and forged-rolled bar and seamless mechanical tubing. We sell our custom-steel solutions to original equipment manufacturers producing components for industrial applications in agriculture, construction, machinery, military, mining, power generation, Timken Steel produces carbon steel, alloy and micro-alloy steel in the form of specialty bar, seamless mechanical tubing, value-add components, billets and bottom-poured ingots. Timken 165RYL1451, combined with our expert knowledge of metallurgy, allow us to tailor every order to customers’ specifications. We have ideal solutions in special bar quality (SBQ) bearings sizes from 1” to 16” and seamless mechanical bearings sizes from less than 3” to over 13”. We engineer hundreds of carbon and alloy steel grades to meet the severe service requirements in oil and gas. In the last decade we have invested heavily in Timken 165RYL1451 to serve the oil and gas market quickly and effectively. Our newest addition – the Advanced Quench and Temper Facility (AQTF) - provides an additional 40,000 tons per year of capacity. Specially designed outer diameter (OD) and inner diameter (ID) water quench ensures we are able to meet stringent mechanical properties.


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