Type EA Longer service life and higher rot while contributing to mo Ultage Series spherical rollers bearings are innovative to provide longer service life, higher rotational speed, and Longer Service Life Larger rollers provide the industry s highest load capacity. Extended maintenance intervals Lighter and more compact design Withstands operating temperatures up to C. Higher Rotational Speed The industry s highest allowable rotational speed Simple windowtype configuration employs a pressed steel cage. The back face of the cage provides a guide function that eliminates the guide ring. Improved EaseofUse Unique structure readily accepts lubricant. Easy application of grease ULTAGE (a name created from the combination of ultimate, signifying refinement, and stage, signifying NTN s intention that this series of products be employed in diverse applications) is the general name for NTN s new generation of bearings that are noted for their industryleading performance.
Type EM ational speed improve easeofuse re ecofriendly operation. new standard products specifically developed improved easeofuse required for industrial machinery. Rollers Larger rollers imum number of rollers Outer ring With oil inlets and oil groove Optimal curvature INDEX The ULTAGE Advantage P Inner ring Type EA No rib required. Optimal curvature Cage Windowtype pressed steel cage Cage end faces function as guides. Bearing Number, Allowable Misalignment 1. Bearing Tolerances. Chamfer Dimensions. Dimensions of Oil Inlets and Outer Diameter Groove. Internal Clearance P P P P P. Installing Tapered Bore Bearings P. Bearing Fits P. Allowable Axial Load P. Allowable Speeds P. Dimensional Table ~ P
The ULTAGE Advantage Type EA 1 The industry s highest load capacity These bearings have a significantly increased roller diameter and incorporate the maximum number of rollers, thus achieving both a high load capacity and a longer service life. Maintenance intervals can also be extended. Figure 1 1 Basic dynamic : up to % greater than the NTN conventional design Basic static : up to % greater than the NTN conventional design Service life: up to five times longer than the NTN conventional design NTN EA conventional design The industry s highest allowable speed The new pressed steel cage results in allowable bearing speeds up to % greater than NTN s conventional design. Four cage pocket tabs stabilize the roller position Figure Pressed steel cage provided as standard. The windowtype pressed steel cage provides higher rigidity. Each roller pocket is provided with four tabs. 1 The guide system employs a backtoback cage system. Four tabs in each cage pocket stabilize the roller position. The innovative cage pocket shape ensures a stable supply of lubricating oil or grease into the bearing. A special surface treatment enhances wear resistance. Figure Compact, lightweight design The increased load capacity contributes to a lighter and more compact design. Benchmarks Load rating(kn) Model No. B 1EA 1 1 Boundary dimensions (mm) φ φ φ φ Results in approximately a % reduction in volume ratio and mass ratio Improved easeofuse Bearing volume (cm ) Adoption of a simple windowtype pressed steel cage improves ease of assembly/disassembly and grease application. 1 Easier application of grease to the roller surface Improved roller retention contributes to easier assembly/disassembly Mass (kg).. Figure Chamfered cage pocket tabs Oil path
Bearing Number EA K D1 C Dimension series code Bore diameter code Type code Raceway configuration code Oil inlet/oil groove code Internal clearance code No code: Cylindrical bore No code: Normal clearance K: Tapered bore C: C clearance EA: Windowtype pressed steel cage EM: Onepiece machined hightension brass cage D1: With oil inlet/oil groove (D1 specification only) W: With oil inlet/oil groove (European market specification) For applications that expose bearings to severe vibration and impact, we recommend Type EM bearings, which incorporate a hightension brass cage machined from a single piece. (Type EM differs from Type EA in the shape of the inner ring.) Type EA Type EM Windowtype pressed steel cage Onepiece machined cage Inner ring rib Type EM (Large size) 1 sizes of Type EM (large size) are added. Guide ring Onepiece machined cage Inner ring rib Allowable Misalignment Normal or heavy load Light load.rad(. ).rad( ) * If the installed misalignment is greater than recommended, there is a risk of roller/cage protrusion and impact to surrounding components.
. Dimensional accuracy and running accuracy (1)Inner ring Nominal bore diameter Dimensional tolerance of mean Radial runout Width deviation Width variation bore diameter in single plane ()Outer ring mm unit:μm Class Class Class Class Over Including High Low High Low 1 1 1 1 1 1 unit:μm Nominal outside diameter Dimensional tolerance of mean Radial runout Width deviation Width variation outside diameter in single plane mm Class Class Class Class Over Including High Low High Low 1 1 1 Same as and of bearings of same nominal bore diameter 1 1.. Tolerance of tapered bore (1)Taper ratio 1/1(Class ) unit:μm Nominal bore diameter Dimensional tolerance of mean bore diameter in single plane Bore diameter variation mm Over Including High Low High Low + +1 + + + + + + + + + + 1 +1 + 1 + + + + 1 1 1 Theoretical tapered bore Tapered bore with dimensional tolerance of mean bore diameter in single plane ()Taper ratio 1/(Class ) unit:μm Nominal bore diameter Dimensional tolerance of mean bore diameter in single plane Bore diameter variation mm Over Including High Low High Low + + + + + + 1 + + 1 + + + +
Nominal bore diameter unit:mm 1 1.. Over Including Radial direction 1. 1.......... Axial direction... 1 Bearing bore surface or bearing outer diameter surface (Axial direction) Inner ring side face or outer ring side face (Radial direction) Number of oil inlets Nominal outside diameter Min Less than D1 Number of oil inlets W (European market specification) Note : See the dimension table for information on the oil groove width and oil inlet diameter.
Nominal bore diameter C Including unit:μm (1)Data for cylindrical bore bearings 1 1 1 Min CN 1 1 1 Min C 1 1 Min C 1 1 1 Min Over 1 1 Reduction in radial internal clearance Axial displacement driveup Taper ratio 1/1 Taper ratio 1/ Minimum residual internal clearance Nominal bore diameter Including unit:mm..1..........1...... Min.1.1................ CN...........1.....1..1 C Over 1 Nominal bore diameter C Including unit:μm ()Data for tapered bore bearings 1 1 1 Min CN Min C 1 1 Min C 1 Min Over 1 1 C........1....1.......1..........1.....1...1....... 1. 1. 1. 1. 1. 1. 1... Min....... 1. 1. 1. 1. 1. 1..... 1. 1.......... Min........... 1 1 1 1 1 1 1 1 1 1 1 1 1
(1)Tolerance class of normally used shaft Rotating inner ring load or indefinitedirection load Static inner ring load Conditions Light load 1) or normal load 1) or varying load Heavy load 1) or impact load Shaft diameter (mm) Tolerance zone Over Including of shaft Cylindrical bore bearing (class ) 1 ) For larger bearings, tolerance zone f may be applied to Inner ring should slide smoothly on shaft. All shaft diameters g ensure the bearing slides smoothly on the shaft. Inner ring need not slide smoothly on shaft. All shaft diameters h Tapered bore bearing (Class ; complete with adaptor or removable sleeve.) All types of loads All shaft diameters h/it ) h/it ) will suffice for power transmitting shafts. k m n n p r n p r Remarks Use a bearing with an internal clearance greater than the CN clearance. ()Tolerance class of normally used housing bore Housing Onepiece housing or twopiece housing Onepiece housing Static outer ring load Indefinitedirection load Rotating outer ring load Conditions Load type, etc. All types of loads Light load 1 ) or normal load 1) Shaft and inner ring become very hot. Precision rotation must be possibleunder light or normal load. Quiet running required. Light or normal load Normal or heavy load 1) Highimpact load Light or varying load Normal or heavy load Heavy or highimpact loads on thinwalled housings Axial movement of outer ring Movable Movable Easily movable Generally immovable Movable Movable Movable Generally immovable Immovable Immovable Immovable Immovable Tolerance class of housing bore H H G K JS H JS K M M N P Remarks When a large bearing is used or a large temperature difference exists across the outer ring and housing, tolerance zone G may be applied. When a large bearing is used or a large temperature difference exists across the outer ring and housing, tolerance zone F may be applied.
Spherical roller bearings carry a radial load, a bidirectional axial load, or a combination of both. They are suitable for applications involving vibration and impact loads. However, if a spherical roller bearing is used under an excessive axial load, the load on the rollers of the row not receiving the axial load will be reduced and the rollers in this row move with a sliding motion, possibly leading to lubrication failure and other problems. In case that the ratio of axial load to radial load exceeds Constant which is in the dimension table please contact NTN Engineering. :Axial load. :Radial load. :Constant(See dimension table) Higher bearing speeds result in higher bearing temperatures caused by friction. When the bearing temperature exceeds a specific limit, lubricant performance deteriorates significantly, leading to abnormally high temperatures and bearing seizure. The limiting factors that affect allowable bearing speed include the following: (1) Bearing type () Bearing size () Lubrication system (grease, circulating lubrication, oil bath, etc.) () Bearing internal clearance (internal clearance of running bearing) () Bearing load () Dimensional accuracy with shaft, housing, etc. The allowable speeds indicated in the bearing dimension table are for reference only and apply only when bearings are lubricated and heat is efficiently drawn away from the bearing. The allowable speeds in this catalog are categorized as follows: Oillubricated bearings The bearing speed at which the outer ring temperature reaches C when the bearing is allowed to run at % basic static while lubricated with oil (viscosity VG) which is assimilated to room temperature and fed at a rate of 1 liter/min (circulating lubrication) Greaselubricated bearings The bearing speed at which the outer ring temperature reaches C when the bearing, which has undergone runningin operation, is allowed to run at % basic static with the bearing s internal free volume to % prefilled with lithium grease (consistency: NLGI) With either lubrication system, the bearing temperature rise profile varies with the operating conditions (operating load, running speed pattern, lubricating conditions, etc.) in which the bearing is used. Therefore, select the optimal bearing by allowing sufficient margin for the allowable speed for that particular bearing as indicated in the catalog. Contact NTN Engineering for technical assistance if the bearing speed in the intended application exceeds % of the allowable speed indicated in the bearing dimension table, or if the intended bearing is to be used under severe operating conditions involving vibration and impact.
1 1 1 1 1 1 1 1 1 1 1 1 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1......................1.1.. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 kn kgf Basic dynamic Basic static Basic dynamic Basic static mm Boundary dimensions min 1 Grease Allowable speed Oil 1 1 1 1 1 1 1 1 1 1.... 1 1 1 1 1 1 1 1 1 1 1 1 1 1) K indicates bearings have taperd bore with a taper ratio of 1:1. )Smallest allowable dimension for chamfer dimension Cylindrical bore (Type EM) Cylindrical bore (Type EA) Type EA Type EM
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1....1.1.1.1...........................................1.1.. 1. 1... 1. 1... 1. 1... 1. 1... 1. 1......1.1...1.1...1.1.................................1.1.................. 1. 1..1.1 1. 1... 1. 1... 1. 1... 1. 1......1.1.. 1. 1... 1. 1... 1. 1......1.1..1.... 1. 1... 1. 1..1.1 1. 1....1...1 1. 1... 1...1 1..1.. 1.1....1. EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 EAD1 EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1.1......1.1 1..1. 1. 1... 1. 1..1..... 1. 1..1. 1. 1..1. 1. 1...1....1....1 Cylindrical bore Tapered bore kg Bearing number Abutment and fillet dimensions Mass (approx.) Cylindrical bore Tapered bore 1) Constant Axial load factors Dynamic equivalent radial load Static equivalent radial load For values and see the following table. 1. Tapered bore 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1... 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1................ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 kn kgf Basic dynamic Basic static Basic dynamic Basic static mm Boundary dimensions min 1 Grease Allowable speed Oil 1)Bearings appended with K have a tapered bore ratio of 1:1; bearings append with K have a tapered bore ratio 1:. )Smallest allowable Type EA Type EM Cylindrical bore (Type EM) Cylindrical bore (Type EA) 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1..............1..........................1..................... 1. 1..... 1......1.1... 1.......1.1..1.1 1......1.1.................1.1....1......1.1...............1......1.1........ 1. 1..... 1........... 1.......... 1.....1.1........1......1 1. 1.........1 1. 1.........1........1.. 1 1... 1EAD1 1EMD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 1EAD1 1EMD1 EAD1 EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EAD1 EMD1 1EAD1 1EMD1 1EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 1EAKD1 1EMKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 1EAKD1 1EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1...1.....1...... 1. 1........1.1 1....1...... 1...1..1.1.... 1... Cylindrical bore Tapered bore kg Bearing number Abutment and fillet dimensions Mass (approx.) Cylindrical bore Tapered bore 1) Constant Axial load factors dimension for chamfer dimension Tapered bore Dynamic equivalent radial load Static equivalent radial load For values and see the following table. 1. 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1..... 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 kn kgf Basic dynamic Basic static Basic dynamic Basic static mm Boundary dimensions min 1 Grease Allowable speed Oil 1)Bearings appended with K have a tapered bore ratio of 1:1; bearings append with K have a tapered bore ratio 1:. )Smallest allowable Type EA Type EM Cylindrical bore (Type EM) Cylindrical bore (Type EA) 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1............1.1.........1.1.1.........1..........1.1... 1........... 1........... 1................... 1....1 1. 1..1.1..... 1. 1..1.1.1... 1... 1. 1...... 1.. 1.. EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EMD1 EAD1 EMD1 EMD1 EMD1 EMD1 EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EAD1 EMD1 EMD1 EMD1 EMD1 EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EMKD1 EAKD1 EMKD1 EMKD1 EMKD1 EMKD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EAKD1 EMKD1 EMKD1 EMKD1 EMKD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1.1.1.1.. 1. 1. 1. 1...... 1. 1. 1. 1. 1.. 1.... 1. 1. 1..1 1..... 1. 1. 1.......1......................1...........1.............. 1. 1. 1. 1...... 1. 1. 1. 1. 1...... 1..1....... 1. 1. 1. 1. 1..... Cylindrical bore Tapered bore kg Bearing number Abutment and fillet dimensions Mass (approx.) Cylindrical bore Tapered bore 1) Constant Axial load factors dimension for chamfer dimension Tapered bore Dynamic equivalent radial load Static equivalent radial load For values and see the following table. 1. 1
1)Bearings appended with K have a tapered bore ratio of 1:1; bearings append with K have a tapered bore ratio 1:. )Smallest allowable 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 kn kgf Basic dynamic Basic static Basic dynamic Basic static mm Boundary dimensions min 1 Grease Allowable speed Oil Type EA Type EM Cylindrical bore (Type EM) Cylindrical bore (Type EA) 1
dimension for chamfer dimension 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1.1...1.......1.........1..1.....1.1..1.....1.....1..1.1....... 1......1.1.. 1...... 1.. 1..... 1....... 1....1...1..................1.....................1......1.... 1...1..... 1.. 1..... 1.. 1.... 1.. 1..1... 1..1..... 1. 1......... 1. 1.....1 1. 1... 1. 1.... 1....... 1....1 1..... 1.. EMD1 EAD1 EMD1 EMD1 1EAD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EAD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMKD1 EAKD1 EMKD1 EMKD1 1EAKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EAKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1. 1. 1.......1.. 1. 1... 1........ 1... 1.1.....1 1. 1..1..1..... Cylindrical bore Tapered bore kg Bearing number Abutment and fillet dimensions Mass (approx.) Cylindrical bore Tapered bore 1) Constant Axial load factors Tapered bore Dynamic equivalent radial load Static equivalent radial load For values and see the following table. 1. 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)Bearings appended with K have a tapered bore ratio of 1:1; bearings append with K have a tapered bore ratio 1:. )Smallest allowable kn kgf Basic dynamic Basic static Basic dynamic Basic static mm Boundary dimensions min 1 Grease Allowable speed Oil 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Type EM(Large size) 1 Tapered bore Cylindrical bore
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1.....1....1.....1....1....1..1.1....1....1.1..1.1...1.1. 1. 1.. 1.. 1.. 1...1.. 1.. 1....... 1.........1...1............1................1........... 1.. 1.. 1. 1..... 1.. 1... 1.. 1....1..1....... 1. 1 1 1. 1.1.. 1 1 1 1. 1 1.. 1. 1 1. 1 1.. EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 1EMD1 1EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMD1 EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 1EMKD1 1EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1 EMKD1. 1. 1 1. 1 1... 1 1 1.. 1 1 1.1. 1. 1... dimension for chamfer dimension Cylindrical bore Tapered bore kg Bearing number Abutment and fillet dimensions Mass (approx.) Cylindrical bore Tapered bore 1) Constant Axial load factors Dynamic equivalent radial load Static equivalent radial load For values and see the following table. 1.
1 MEMO
HEADQUARTERS NTN Corporation URL http://www.ntn.co.jp, Kyomachibori, Nishiku, Osakashi, Osaka Japan Phone: +1 NTN USA Corporation URL http://www.ntnamericas.com E. Bishop Court, P.O. Box, Mount Prospect, IL, U.S.A. Phone: +1 Fax: +1 SALES NETWORK NTN Bearing Corp. of America Head Office / E. Bishop Court, P.O. Box, Mount Prospect, IL,U.S.A. Phone: +1 Fax: +1 Central Sales Office / 1 North Main Street, East Peoria, Illinois 1 Phone: + Fax: +1 NTN Automotive Center / W. 1 Mile Road, Farmington Hills, MI 1, U.S.A. Phone: +1 Fax: + NTN Bearing Corp. of Canada Ltd. URL http://www.ntnamericas.com Head Office / Courtneypark Drive West, Mississauga, Ontario, LW 1Y, Canada Phone: +1 Fax: +1 Edmonton Branch / th Street, Edmonton, Alberta TE N, Canada Phone: +1 Fax: +1 Toronto Branch / Courtneypark Drive West, Mississauga, Ontario LW 1Y, Canada Phone: + Fax: + Montreal Branch / Levy Street, Ville, StLaurent, Quebec, HR N, Canada Phone: + Fax: + NTN Wälzlager (Europa) GmbH. URL http://www.ntnsnr.com Head Office / PlanckStr., Erkrath, F.R.Germany Phone: +1 Fax: +1 Stuttgart Branch / Plieninger Str. B, Filderstadt F.R.Germany Phone: + Fax: + NTN Bearings (UK) Ltd. URL http://www.ntnsnr.com Wellington Crescent, Fradley Park, Lichfield, Staffordshire, WS1 RZ, U.K. Phone: + Fax: +1 NTNSNR ROULEMENTS. URL http://www.ntnsnr.com Head Office / 1, rue des Usines B.P. 1 Annecy Cedex, France Phone: + Fax: +1 Lyon Branch / 1, rue des Docks, Lyon, France Phone: + Fax: + Paris Branch /, rue Auguste Comte, BP, 1 Vanves Cedex, France Phone: + Fax: +1 Cran Gevrier Branch / route de la Salle,, Cran Gevrier, France Phone: + Fax: + Argonay Branch /, Rte de Champ Farçon,, Argonay, France Phone: + Fax: + SNR Wälzlager GmbH. Head Office / PlanckStr., Erkrath, F.R.Germany Phone: +1 Fax: +1 Bielefeld Branch / FriedrichHagemannStraße, 1 Bielefeld, F.R.Germany Phone: + Fax: + Stuttgart Branch / Plieninger Str. B, Filderstadt F.R.Germany Phone: + Fax: + NTNSNR ITALIA S.P.A. Head Office / Via Riccardo Lombardi, 1/, 1 Milan, Italy Phone: + Fax: + Bologna Office/ Via Maestri del Lavoro /A 1 Bologna, Italy Phone: + Fax: +1 NTNSNR IBERICA SA / Calle Barberán n, Madrid, Spain Phone: +1 Fax: +1 NTNSNR RULMENTI S.R.L. / Zona IndustrialaVest, Strada Salzburg, SIBIU, Romania Phone: + Fax: + NTNSNR Marocco / Route cotiere 1, Quartier industriel, Polygone 1, Casablanca, Morocco Phone: +1 Fax: + NTN BearingSingapore (Pte) Ltd. URL http://www.ntn.com.sg Head Office / No. Clementi Loop Singapore Phone: + Fax: + Philippine Representative Office / Unit Philippine Axa Life Centre Condominium Corporation Sen. Gil Puyat Ave Corner Tindalo Street Makati City, Philippines Phone: + Fax: + NTN BearingVietnam Co., Ltd. 1th Floor,Viettower Building,No.1 Thai Ha street, Trunng Liet Ward, Dong Da District, Hanoi, Vietnam Phone: + Fax: + NTN Bearing India PVT. Ltd. URL http://ntnbearing.in/index.html Head Office / SPIC Annexe Building, nd Floor No., Mount Road, Guindy Chennai, India Phone: +1 Fax: + Delhi Branch / 1, th Floor, International Trade Tower, Nehru Place, New Delhi 1, India Phone: + Fax: + Mumbai Branch / Unit No :1,DLH PARK, S V Road, Goregaon West, Mumbai, India Phone: + Fax: +1 NTN (China) Investment Corp. URL http://www.ntn.com.cn Shanghai Head Office / No. building No.1 Nanle Road, Songjiang Industrial Zone, Songjiang, Shanghai 1, China Phone: +1 Fax: +1 Beijing Branch / Unit,Fortune Financial Center, No. Dongsanhuan Zhong Road, Chaoyang District, Beijing, China Phone: + Fax: + Guangzhou Branch / Room, Onelink Center, No. Tianhe Road, Tianhe District, Guangzhou, China Phone: + Fax: + Nanjing Branch / D1D, Nanjing Centre, NO.1 Zhongshan South Road, Qinhuai District, Nanjing, China Phone: + Fax: + Chongqing Branch / Room 1, Carnival mansion, No. Guanyingqiao Street, Jiangbei District, Chongqing, China Phone: +1 Fax: + Shenyang Branch / Room, China Resources Building, No. Qingnian Road, Heping District, Shenyang, China Phone: + Fax: + NTN China Ltd. URL http://www.ntnchina.com Hong Kong Office / Room, ParkIn Commercial Centre, No. Dundas Road, Mongkok, Kowloon, Hong Kong Phone: + Fax: +1 NTN BearingThailand Co., Ltd. Head Office / th Floor Panjathani Tower, 1/ Nonsee Road, Chongnonsee, Yannawa, BANGKOK, Thailand Phone: +1 Fax: + Khon Kaen Branch / 1/ Ruenrom Road, Mueang, Khon Kaen. Phone: + Fax: +1 Haad Yai Branch / 1/1 Moo 1, Lopburi Ramesuan Road, Klong Hae,Had Yai, Songkhla 1 Phone: +1 Fax: + Chiangmai Branch / Moo, Wong wan rob klang, Nong Hoi, Amphur Muang, Chiang Mai Phone: + Fax: +1 NTN BearingMalaysia Sdn. Bhd. Head Office / No., Jalan Arkitek U 1/, Hicom Glenmarie Industrial Park, Shah Alam, Selangor Darul Ehsan, Malaysia Phone: + Fax: + Butterworth Branch /, Jalan Permatang Pauh, Butterworth, Malaysia Phone: +1 Fax: + Ipoh Branch Office /, Medan Kidd, Kinta Mansion, Ipoh, Malaysia Phone: + Fax: + Kuantan Branch / B, Ground Floor, Jalan Beserah Kuantan, Malaysia Phone: +1 Fax: +1 Johor Bahru Branch / 1 Jalan, Sri Bahagia, Taman Sri Bahagia, Tampoi, Johor Bahru, Malaysia Phone: + Fax: + PT. NTN Bearing Indonesia MidPlaza 1, th Floor, Jl. Jend. Sudirman Kav. Jakarta, Indonesia Phone : + 1 Fax : 1 NTNCBC (Australia) Pty. Ltd. 1 Worth Street Chullora NSW 1, Sydney Australia Phone: +1 Fax: +1 1 NTN de Mexico, S.A. URL http://www.ntnamericas.com/es Head Office / Emilio Cárdenas No.1 Apdo.1, C.P., Tlalnepantla, Edo.deMéxico, Mexico Phone: + Fax: + Guadalajara Branch / Calle No., Zona Industrial, C.P., Guadalajara, Jalisco, Mexico Phone: + Fax: + Monterrey Branch / Av. Ruiz Cortines No.1 Ote, Col. La Purisima, C.P., Cd. Guadalupe, Nuevo Leon, Mexico Phone: + Fax: +1 NTN Sudamericana, S.A. URL http://www.ntnamericas.com World Trade Center Panama / Calle Este, Urbanización Marbella Piso NO.1, Oficina 1 Apartado Postal, Panamá, Rep.de Panamá Phone: + Fax: + NTN do Brasil Ltda. URL http://www.ntn.com.br Av. Moema, Andarconj, a CEP IndianópolisSão PauloSP, Brasil Phone: + Fax: +1 NTN Korea Co., Ltd. Head Office / th Fl., 1, SejongDaero, JungGu, Seoul,, Korea Phone: + Fax: + Busan Branch / Rm.,, JungangDaero BeonGil, BusanjinGu, Busan, 1, Korea Phone: +1 Fax: + NOTE : The appearance and specifications may be changed without prior notice if required to improve performance. Although care has been taken to assure the accuracy of the data compiled in this catalog, NTN does not assume any liability to any company or person for errors or omissions. NTN Corporation AE1 CAT. No. Ⅳ/E 1.. NI/NI