TAPERED ROLLER BEARINGS
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TAPERED ROLLER BEARINGS The complete NTN offer: inch and metric dimensions

NTN-SNR The strength of a group NTN-SNR ROULEMENTS is the European entity of NTN Corporation, the 3rd largest bearings group in the world. NTN-SNR ROULEMENTS specialises in the design, development and production of tapered roller bearings. Globally, NTN Corporation is an expert in product life cycle management, and is typified by the accessibility and commitment of its teams. We are in the forefront of the latest development projects in your strategic markets. Our engineers will be present at your side to design solutions suitable for the most demanding applications. With: • almost 100...

Inch tapered roller bearings Metric tapered roller bearings Our strength: case hardened steel TECHNICAL DATA Inch series index (by article code) Inch range table (by inner diameter) Metric range table (by inner diameter)

Our commitments THE MOST RELEVANT ITEMS HAVE BEEN SELECTED TO ENSURE THE BEST POSSIBLE PERFORMANCE LEVELS FOR DISTRIBUTION MARKET. A COMPLETE RANGE: INCH AND METRIC DIMENSIONS The most popular dimensions in the two families of single row tapered roller bearings (inch and metric) are grouped together in a single range under the NTN brand. PREMIUM QUALITY, 100% JAPANESE BEARINGS PREMIUM 100% manufactured in our cutting-edge Japanese factories, our products undergo regular quality inspections, from production to transport. EUROPEAN STOCK TO MEET SHORT DELIVERY TIMES A stock designed for...

NTN BRAND PRODUCTS Our products are delivered in extremely tough blue NTN boxes designed to stand up to impacts during transport. TECHNICAL SUPPORT BASED IN EUROPE TO ASSIST YOU With their recommendations for your specific applications, product training and mounting advice, our NTN-SNR experts are there to support you. For your daily business, our online tools can help: • Product cross references • Technical data sheets • Placing orders For further information for each article, Visit our e-shop Scan me!

Our range INCH TAPERED ROLLER BEARINGS SERIES THE INCH RANGE FEATURES 20 TIMES MORE SERIES THAN THE METRIC RANGE. DESIGNATIONS OUR DESIGNATIONS ARE SIMILAR TO THOSE OF THE OTHER BRANDS ON THE MARKET. The references are made up of 2 parts. DESIGNATION OF THE CUP Outer ring Inner ring Cage Rollers All our references comply with the ABMA standard 100 % OF OUR REFERENCES IN INCHES ARE MADE IN CASE HARDENED STEEL (See details on page 8)

METRIC TAPERED ROLLER BEARINGS SERIES THE RANGE OF TAPERED ROLLER BEARINGS WITH METRIC DIMENSIONS CONSISTS OF 10 STANDARDISED SERIES. 303xxD 302xx 320xx303xx 322xx The “increased angle” series covers a maximum range of radial and axial loads A series is defined by three criteria: Width / Height / Roller angle, and is divided up into various bore diameters ranging from 20 mm to 360 mm. Some series can feature 40 different bore diameters! DESIGNATIONS Above 20 mm, the bore diameter can be calculated by multiplying the last two figures of the reference by 5. 322 12 U 12 X 5 = 60 MM In this...

Our strength: case hardened steel Case hardening is the process of introducing carbon into the surface layer of the components of a bearing. The steel surface acquires greater fatigue resistance and its resilient core allows for better shock absorption. For use in extreme conditions, case hardened steel is unquestionably the best possible choice. CROSS-SECTION VIEW OF A BEARING MADE OF CASE HARDENED STEEL: Rémy Dubouchet A hardened surface layer for enhanced resistance Industrial Design Department A resilient core to absorb shocks INCREASED SERVICE LIFE DURATION At NTN, case hardening is...

Our applications NTN-SNR EXPERTS WORK CONSTANTLY TO IMPROVE OUR PRODUCTS AND THEIR SAFETY SO AS TO PROVIDE THE BEST POSSIBLE SOLUTIONS TO OUR CUSTOMERS’ REQUIREMENTS. Hydraulic engines are subject to low speeds no greater than 255 rpm, and can withstand heavy axial loads. GEAR MOTOR The shafts of a gear motor have various constraints Input shaft: • High speed • Low forces Output shaft • Low speed • High forces PELLET PRESS Pellet presses have a complex environment. Heavy loads and high temperatures of up to 130°C need to be withstood. JOURNAL BEARING Bearings mounted on train axles need to...

Prefixes and suffixes THE REFERENCES IN THIS CATALOGUE ARE ALL INTERCHANGEABLE WITH THOSE OF OUR COMPETITORS. THE DESIGNATIONS CAN VARY FROM ONE MANUFACTURER TO ANOTHER THROUGH THE USE OF ADDED PREFIXES AND SUFFIXES. INCHES DESIGNATION OF THE CONE 4T- : Case hardened steel V1, V2, V3, V4: Particular specification with optimized profile PX1, PX2: Special tolerance PK: Specific tolerance class K for the J series X, A, AS, S: Non-standard connection radius C: Increased capacity METRIC TYPE OF SERIES X SUFFIXE U : Through-hardened steel X : Suffix linked to the ISO designation, cone width B =...

How to read our tables HOW TO READ OUR TABLES 1 ORE DIAMETER B Enter the table by increasing inner diameter. Identify the simplified symbol and its standard NTN equivalent. 3 DIMENSIONS the dimensions of the various measurements given in millimetres Find and also the weight in kilograms. Find the load capacities in kN. Bore diameter Simplified reference Outer diameter Width (mm) Inner ring Article designation Load capacities Outer ring Shaft link Housing link Dynamic load Simplified European code is a cross reference to the Japanese designation. Capacities (kN) Static load Dynamic and...

Inch series index (by article code) Identify the article and find the detailed technical data on the page shown in Column 3. ARTICLE DESIGNATION ARTICLE DESIGNATION ARTICLE DESIGNATION

ARTICLE DESIGNATION ARTICLE DESIGNATION

Inch series index (by article code) Identify the article and find the detailed technical data on the page shown in Column 3. ARTICLE DESIGNATION ARTICLE DESIGNATION DÉSIGNATION ARTICLE

Inch series index (by article code) DÉSIGNATION ARTICLE DÉSIGNATION ARTICLE DÉSIGNATION ARTICLE