sealed spherical roller bearings · sealed spherical roller bearings [emllx type] higher...

Sealed Spherical Roller Bearings

[EMLLX Type]CAT.No.3039/E

Sealed Spherical Roller Bearings[EMLLX Type]

Higher Reliability● Seals prevent intrusion

of foreign matter

● Prolonged relubrication interval

● Uses removable seals

● Complies with ISO

　 dimensions

Improved Ease-of-Use

● Larger rollers provide the

industry’s highest load capacity

● Extended maintenance intervals

● Lighter and more compact design

Long Life

ULTAGETM Series Sealed Spherical Roller Bearings (EMLLX Type) are new innovative standard products specifically developed to provide “long life”, “higher reliability”, and “improved ease-of-use” required for all industrial machineries.

“ULTAGETM” (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 industry-leading performance.

Retaining Ring● Can be attached and 　 removed without a special tool

Seal● Removal● Contact seals on both sides● Unique lip structure to maintain contact 　 pressure even with bearing misalignment● Material: Nitrile rubber

Cage● One-piece machined cage

Inner Ring● With rib● Optimal curvature

Rollers● Larger rollers● Maximum number 　 of rollers

Outer Ring● With oil groove and 　 inlets● Optimal curvature

1

2

Features

EMLLX type and open bearings have the

same dimensions

EMLLX Type Open Bearing

Fig. 1

Fig. 2

Bearing Seal(removable)

Retaining Ring(removable)

ULTAGETM Sealed Spherical Roller Bearings [EMLLX Type]

Feeler Gauge

Measurement of radial

internal clearance

Fig. 3 Fig. 4

Seal �xing

Retaining Ring

Seal Seal fixed by tension force of retaining ring

Seal removal

Remove by inserting a flathead screwdriver, etc.

Retaining Ring

Seal

Performance Test Data●Temperature rise Test

[Test Conditions]Bearing : 22228EMLLXKD1Load : radial load 47.2 kNRotational speed : 70 to 857 min-1

Lubrication : Shell Alvania EP Grease 2 (8A)Amount of grease : 30% of free spaceOperating time : 12 h at each rotational speed

[Test Results]

0

20

40

60

80

0 100 200 300 400 500 600 700 800 900

0 6 9 123

Out

er r

ing

tem

pera

ture

ris

e ℃

Rotational speed　min-1

dn value　×104

[dn = Bearing bore diameter d (mm) × rotational speed n (min-1)]

Outer Ring Temperature Rise

2. Use of Removable Seals Seals can be removed as they are held in place with a retaining ring. (Fig. 2)● When installing the bearing, the radial internal clearance can be accurately

measured with a feeler gauge, and adjusted. (Fig. 3)● The retaining rings can be installed without the use of a special tool, and

removed by inserting a flathead screwdriver into the retaining ring notch. (Fig. 4)

3. Adoption of Special Thin Seals● Ensures uniform contact pressure of the seal lip during self-alignment of the

bearing, prevention of ingress of foreign matter, and stable sealing.● Provides sealed spherical roller bearings with the world’s largest load

capacity.

4. Lubrication Speci�cation in Accordance with RequirementsEither grease-filled type or grease-free type can be selected.

1. Fully Compatible with Open BearingsThe dimensions are the same as open bearings complying with ISO dimensions, so they can replace open bearings without changing the dimensions of the surrounding parts. The allowable misalignment angle of 0.5° is also the same between sealed and open spherical roller bearings. (Fig. 1)

3

Dimension Table

Cylindrical Bore Tapered Bore

Bearing Internal Clearance

Nominal Bore Diameterd

mmCN C3 C4

over incl. min max min max min max

120 140 95 145 145 190 190 240140 160 110 170 170 220 220 280160 180 120 180 180 240 240 310180 200 130 200 200 260 260 340200 225 140 220 220 290 290 380225 250 150 240 240 320 320 420

Nominal Bore Diameterd

mmCN C3 C4

over incl. min max min max min max

120 140 120 160 160 200 200 260140 160 130 180 180 230 230 300160 180 140 200 200 260 260 340180 200 160 220 220 290 290 370200 225 180 250 250 320 320 410225 250 200 270 270 350 350 450

Unit: μm Unit: μm1) Cylindrical Bore 2) Tapered Bore

Boundary Dimensions Basic DynamicLoad Rating

Basic StaticLoad Rating

Basic DynamicLoad Rating

Basic StaticLoad Rating Bearing Number Abutment and Fillet Dimensions Constant Axial Load Factor Mass

(approx.)Amount of Grease

(approx.)Internal Free

Space (approx.)

Seal Part No. Retaining Ring Part No.mm kN kgf mm kg g cm3

d D B rs min 2 W0 d0 Cr C0r Cr C0r Cylindrical Bore Tapered Bore 1 d1 da min Da max D1 ras max e Y1 Y2 Y0Cylindrical

BoreTapered

Bore＊For /8AV10

140 250 68 3 14 7 866 944 88300 96300 22228EMLLXD1 22228EMLLXKD1 168 154 236 235 3 0.23 2.92 4.35 2.86 13.1 13.4 99.5～139 442 F1#22228EMLX HH#22228EMLX

150 270 73 3 15 7 990 1090 101000 112000 22230EMLLXD1 22230EMLLXKD1 181 164 256 254 3 0.23 2.90 4.31 2.83 16.7 17.0 126～176 559 F1#22230EMLX HH#22230EMLX



170 280 88 2.1 14 6 1170 1540 120000 157000 23134EMLLXD1 23134EMLLXKD1 203 182 268 263 2.1 0.26 2.60 3.87 2.54 19.8 20.4 137～192 610 F1#23134EMLX HH#23134EMLX







240 400 128 4 20 9 2360 3240 241000 330000 23148EMLLXD1 23148EMLLXKD1 286 257 383 373 4 0.27 2.47 3.67 2.41 60.9 62.9 410～574 1823 F1#23148EMLX HH#23148EMLX1 Tapered bore ratio 1:12.2 Allowable minimum radius for chamfer r.＊ For bearing numbers not shown on the 231 Series dimension table (φ240 and larger and φ420 and smaller), contact NTN Engineering.

r

r

W0

Z0×d0

B

φD

1

φD

φd

1

φd φd

Number of oil inlets

Norminal Outside Diameter

Number of Lubrication

HolesZ0

mm≥ <- 320 4

320 - 8

4

Boundary Dimensions Basic DynamicLoad Rating

Basic StaticLoad Rating

Basic DynamicLoad Rating

Basic StaticLoad Rating Bearing Number Abutment and Fillet Dimensions Constant Axial Load Factor Mass

(approx.)Amount of Grease

(approx.)Internal Free

Space (approx.)

Seal Part No. Retaining Ring Part No.mm kN kgf mm kg g cm3

d D B rs min 2 W0 d0 Cr C0r Cr C0r Cylindrical Bore Tapered Bore 1 d1 da min Da max D1 ras max e Y1 Y2 Y0Cylindrical

BoreTapered

Bore＊For /8AV10

140 250 68 3 14 7 866 944 88300 96300 22228EMLLXD1 22228EMLLXKD1 168 154 236 235 3 0.23 2.92 4.35 2.86 13.1 13.4 99.5～139 442 F1#22228EMLX HH#22228EMLX




170 280 88 2.1 14 6 1170 1540 120000 157000 23134EMLLXD1 23134EMLLXKD1 203 182 268 263 2.1 0.26 2.60 3.87 2.54 19.8 20.4 137～192 610 F1#23134EMLX HH#23134EMLX








ra

ra

φD

a

φd

a

Dynamic Equivalent Radial Load

Static Equivalent Radial Load

Pr=XFr＋YFa

FaFr

FaFr

X Y X Y1 Y1 0.67 Y2

≤ e e＞

Dimension Series Code

Bore Diameter Code

Type Code EM: One-piece Machined High-Tension Brass Cage

Contact Seal on Both Sides

Bore Con�guration Code No Code: Cylindrical Bore K: Tapered Bore

Oil Groove/Inlets Code D1: With Oil Groove/Inlets

Internal Clearance Code

Lubricant Code /8A: Shell Alvania EP Grease 2 /0G: No grease

Product Speci�cation Code V10: Installed seals for both sides V11: Installed a seal for one side only Seal for opposite side (on the side with smaller diameter for tapered bore) is not installed but packed with product.

＊ The lubricant code and the product specification code have the following combinations /8AV10 or /0GV11

231 36 EM LLX K D1 C3 /0G V11

Bearing Number

NTN Standard Grease

Allowable Misalignment Allowable Temperature Range

Allowable Rotational Speeds

ULTAGETM Sealed Spherical Roller Bearings [EMLLX Type]

● Brand name: Shell Alvania EP Grease No.2 (8A)

High performance grease for heavy duty containing extreme pressure additives.

● Amount of grease: 25 to 35% of internal free space of the bearing.

● dn value ≤6×104

[dn = Bearing bore diameter d (mm) × operating

speed n (min-1)]

● 0.009 rad (0.5°) ● Bearing temperature: -20 to 110℃

P0r=Fr＋Y0Fa

For values of e, Y1, Y2, and Y0 , see the table below.

5

Handling Precautions

Table 1 Assembling sealed tapered bore spherical roller bearings EMLLX type

Nominal bore

diameterBearing No.

Reduction in radial internal clearance

Axial displacement drive-up (reference)

Minimum residual internal clearance

d min max min max CN C3 C4

140 22228EMLLXKD1 0.065 0.075 1.0 1.1 0.045 0.085 0.125150 22230EMLLXKD1 0.070 0.085 1.0 1.2 0.045 0.095 0.145160 22232EMLLXKD1 0.065 0.085 1.0 1.2 0.045 0.095 0.145170 22234EMLLXKD1 0.075 0.095 1.1 1.4 0.045 0.105 0.165170 23134EMLLXKD1 0.075 0.095 1.1 1.4 0.045 0.105 0.165180 23136EMLLXKD1 0.075 0.095 1.1 1.4 0.045 0.105 0.165190 23138EMLLXKD1 0.085 0.105 1.2 1.5 0.055 0.115 0.185200 23140EMLLXKD1 0.085 0.105 1.2 1.5 0.055 0.115 0.185220 23144EMLLXKD1 0.105 0.125 1.5 1.8 0.055 0.125 0.195220 22244EMLLXKD1 0.100 0.120 1.5 1.8 0.060 0.130 0.200240 23048EMLLXKD1 0.115 0.135 1.6 1.9 0.065 0.135 0.215240 23148EMLLXKD1 0.110 0.130 1.6 1.9 0.070 0.140 0.220

Minimum residual internal clearance: Standard value of radial internal clearance (min) - reduction in radial internal clearance (max)＊ For models not shown on the table, contact NTN Engineering.

Unit: mm

Photo 2

Photo 1

1. When assembling tapered bore bearings, maintain the reduction in radial internal clearance shown in Table 1. The reduction in radial internal clearance is the difference in the initial clearance and the clearance after assembly. Note that the axial displacement drive-up in Table 1 should be taken to be a reference value.

2. During assembly, if misalignment exceeding the allowable misalignment angle (±0.5° ) is applied to the bearing, rollers may come in direct contact with seals causing seal deformation. Furthermore, if additional force is applied under these conditions, the seals and retaining rings may separate from the bearing, so caution is advised.

3. If a shrink fit is to be used for assembly, do not exceed a bearing temperature of 100°C. However, the method of shrink fit by immersion in a hot oil bath cannot be used.

4. The retaining ring can be installed without the use of special tools. Fit it to the groove in the outer ring sequentially from one end. (Photo 1)

5. There is a possibility that the seals or retaining rings will fall out during operation or handling of the bearing, so it is necessary to properly fit the seals and retaining rings. Confirm the seal and retaining ring are securely fit.

6. After assembly of the bearing, check that there is no slack in the retaining rings.

7. Remove the retaining ring by inserting a flathead screwdriver or similar into the notch of the retaining ring and remove it. (Photo 2)

8. When fitting or removing the seals or retaining rings, wear protective glasses for safety, and use caution when handling the retaining rings. Also, wear gloves during operations with the retaining rings so as not to injure your hand or finger with the tip of the retaining ring.

9. When fitting or removing the seals or retaining rings, be careful not to damage the seals or retaining rings.

10. When supplying grease, the guideline for grease supply pressure is about 0.1 MPa. If pressure is applied suddenly, there is a possibility that the seals or retaining rings could be removed.

11. For the 8AV10 specification, use lithium mineral grease for filling and replenishment. If other types of grease are to be used, please contact NTN Engineering.

⇧⇧

⇧

SALES NETWORK

NTN Bearing Corp. of AmericaHead Office / 1600 E. Bishop Court, P.O. Box 7604, Mount Prospect, IL 60056-7604, U.S.A. Phone: +1-847-298-7500 Fax: +1-847-699-9744Peoria Sales Office / 2413 North Main Street, East Peoria, Illinois 61611, U.S.A. Phone: +1-309-699-8600 Fax: +1-309-699-8670NTN Automotive Center / 39255 W. 12 Mile Road, Farmington Hills, MI 48331-2975, U.S.A. Phone: +1-248-324-4700 Fax: +1-248-324-1103

NTN Bearing Corp. of Canada Ltd. URL http://www.ntnamericas.comHead Office / 305 Courtneypark Drive West, Mississauga, Ontario, L5W 1Y4, Canada Phone: +1-905-564-2700 Fax: +1-905-564-9023Edmonton Branch / 4608-97th Street, Edmonton, Alberta T6E 5N9, Canada Phone: +1-780-435-6200 Fax: +1-780-435-3600Toronto Branch / 305 Courtneypark Drive West, Mississauga, Ontario L5W 1Y4, Canada Phone: +1-905-564-2700 Fax: +1-905-564-9609Montreal Branch / 4973 Levy Street, St-Laurent, Quebec, H4R 2N9, Canada Phone: +1-514-333-8054 Fax: +1-514-333-1078

NTN Wälzlager (Europa) GmbH. URL http://www.ntn-snr.comHead Office / Max-Planck-Str. 23, 40699 Erkrath, F.R.Germany Phone: +49-211-2508-0 Fax: +49-211-2508-400Stuttgart Branch / Plieninger Str. 63B, 70794 Filderstadt F.R.Germany Phone: +49-711-123901-0 Fax: +49-711-123901-660

NTN Bearings (UK) Ltd. URL http://www.ntn-snr.comWellington Crescent, Fradley Park, Lichfield, Staffordshire, WS13 8RZ, UK Phone: +44-1543-445000 Fax: +44-1543-445035

NTN-SNR ROULEMENTS. URL http://www.ntn-snr.comHead Office / 1, rue des Usines B.P. 2017 74010 Annecy Cedex, France Phone: +33-4-50-65-30-00 Fax: +33-4-50-65-30-88Lyon Branch / 51, rue des Docks, 69009 Lyon, France Phone: +33-4-78-66-68-00 Fax: +33-4-78-66-68-20Paris Branch / 6, rue Auguste Comte, BP49, 92174 Vanves Cedex, France Phone: +33-1-40-93-66-00 Fax: +33-1-40-93-66-10Cran Gevrier Branch / 6 route de la Salle, 74960, Cran Gevrier, France Phone: +33-4-50-65-93-00 Fax: +33-4-50-65-93-46Argonay Branch / 114, Rte de Champ Farçon, 74370, Argonay, France Phone: +33-4-50-65-94-00 Fax: +33-4-50-65-94-25SNR Wälzlager GmbH. Head Office / Max-Planck-Str. 23, 40699 Erkrath, F.R.Germany Phone: +49-211-2508-0 Fax: +49-211-2508-400 Bielefeld Branch / Friedrich-Hagemann-Straße 66, 33719 Bielefeld, F.R.Germany Phone: +49-521-9-24-00-0 Fax: +49-521-9-24-00-90 Stuttgart Branch / Plieninger Str. 63B, 70794 Filderstadt F.R.Germany Phone: +49-711-123901-0 Fax: +49-711-123901-660NTN-SNR ITALIA S.P.A. Head Office / Via Riccardo Lombardi, 19/4, 20153 Milan, Italy Phone: +39-02-47-99-86-1 Fax: +39-02-33-50-06-56 Bologna Office/ Via Maestri del Lavoro 3/A 40138 Bologna, Italy Phone: +39-051-47-53-51-74 Fax: +39-051-47-53-84-92NTN-SNR IBERICA SA / Edificio A - Planta Baja Derecha, C / Basauri, 17, 28023 Madrid, Spain Phone: +34-916-71-89-13 Fax: +34-916-73-65-48NTN-SNR RULMENTI S.R.L. / Zona Industriala-Vest, 6 Strada Salzburg, 24 00 SIBIU, Romania Phone: +40-269-20-35-00 Fax: +40-269-20-35-25NTN-SNR Morocco / Route cotiere 111, Quartier industriel, Polygone 1, Casablanca, Morocco Phone: +212-522-66-76-80 Fax: +212-522-66-5166

NTN Bearing-Singapore (Pte) Ltd. URL https://www.ntnsg.comNo.9 Clementi Loop Singapore 129812 Phone: + 65-64698066 Fax: +65-64695400

NTN Bearing-Vietnam Co., Ltd. 17th Floor,Viettower Building, No.1 Thai Ha street, Trunng Liet Ward, Dong Da District, Hanoi, Vietnam Phone: +84-4-37347660 Fax: +84-4-37347662

NTN Bearing India PVT. Ltd. URL http://ntnbearing.inHead Office / No. 86, 2nd Floor, Polyhose Towers Mount Road Guindy Chennai 600032, India Phone: +91-44-66867700 Fax: +91-44-66867701Delhi Branch / 819, 8th Floor, International Trade Tower, Nehru Place, New Delhi - 1100019, India Phone: +91-11-40520407 Fax: +91-11-40520407Mumbai Branch / Unit No :1104, DLH PARK, S V Road, Goregaon West, Mumbai - 400062, India Phone: +91-22-28768501 Fax: +91-22-28768900Kolkata Branch / 8th Floor, "C " Landmark Building, AJC Bose Road, Kolkata - 700020, India Phone: +91-33-46031129

NTN (China) Investment Corp. URL https://www.ntn.com.cnShanghai Head Office / No.6 building No.1666 Nanle Road, Songjiang Industrial Zone, Songjiang, Shanghai 201611, China Phone: +86-21-5774-5500 Fax: +86-21-5778-2898Beijing Branch / Unit 2808，Fortune Financial Center, No.5 Dongsanhuan Zhong Road, Chaoyang District, Beijing 100020, China Phone: +86-10-6568-3069 Fax: +86-10-6568-2278Guangzhou Branch / Room 3606, Onelink Center, No.230-232 Tianhe Road, Tianhe District, Guangzhou 510620, China Phone: +86-20-3877-2943 Fax: +86-20-3877-2942Nanjing Branch / D1D2, Nanjing Centre, NO.1 Zhongshan South Rd, Qinhuai District, Nanjing 210005, China Phone: +86-25-8477-5355 Fax: +86-25-8477-5360Chongqing Branch / Room 15-6, Carnival mansion, No.9 Guanyingqiao Street, Jiangbei District, Chongqing 400020, China Phone: +86-23-6796-0812 Fax: +86-23-6796-0878Shenyang Branch / Room 2606, China Resources Building, No.286 Qingnian Road, Heping District, Shenyang 110004, China Phone: +86-24-3137-9186 Fax: +86-24-3137-9185

NTN China Ltd. URL http://www.ntnchina.comHong Kong Office / Room 2003-05, Gala Place, No.56 Dundas Road, Mongkok, Kowloon, Hong Kong Phone: +852-2385-5097 Fax: +852-2385-2138

NTN Bearing-Thailand Co., Ltd. URL http://www.ntn.co.thHead Office / 29th Floor Panjathani Tower, 127/34 Nonsee Road, Chongnonsee, Yannawa, BANGKOK 10120, Thailand Phone: +66-2-681-0401 Fax: +66-2-681-0409Khon Kaen Branch / 189/191 Ruenrom Road, Mueang, Khon Kaen 400003. Phone: +66-43-222237 Fax: +66-43-223061Haad Yai Branch / 156/101-102 Moo 1, Lopburi Ramesuan Road, Klong Hae,Had Yai, Songkhla 90110 Phone: +66-74-292651 Fax: +66-74-292656Chiangmai Branch / 208 Moo 4, Wong wan rob klang, Nong Hoi, Amphur Muang, Chiang Mai 50000 Phone: +66-53-142571 Fax: +66-53-142573

NTN Bearing-Malaysia Sdn. Bhd.Head Office / No.2, Jalan Arkitek U 1/22, Hicom Glenmarie Industrial Park, 40150 Shah Alam, Selangor Darul Ehsan, Malaysia Phone: +60-3-55696088 Fax: +60-3-55690200Butterworth Branch / 5063, Jalan Sungai Nyior Indah, Taman Sungai Nyior Indah, 12100 Butterworth, Penang, Malaysia Phone: +60-4-3328312 Fax: +60-4-3324407Ipoh Branch Office / 65, Medan Kidd, Kinta Mansion, 30200 Ipoh, Malaysia Phone: +60-5-2547743 Fax: +60-5-2538077Kuantan Branch / B-72, Ground Floor, Jalan Beserah 25300 Kuantan, Malaysia Phone: +60-9-5141132 Fax: +60-9-5141164Johor Bahru Branch / 51 Jalan, Sri Bahagia 5, Taman Sri Bahagia, Tampoi, 81200 Johor Bahru, Malaysia Phone: +60-7-2364929 Fax: +60-7-2370897

PT. NTN Bearing IndonesiaMidPlaza 1, 7th Floor, Jl. Jend. Sudirman Kav. 10 -11 Jakarta, Indonesia 10220 Phone: + 62-21-5707676 Fax : 62-21-5707699

NTN-CBC (Australia) Pty. Ltd. URL https://www.conbear.com.au18 Worth Street Chullora NSW 2190, Sydney Australia Phone: +61-2-9947 9200 Fax: +61-2-9502 4013

NTN de Mexico, S.A. URL http://www.ntnamericas.com/esHead Office / Emilio Cárdenas No.158 Apdo.124, C.P.54030, Tlalnepantla, Edo.deMéxico, Mexico Phone: +52-55-5390-1133 Fax: +52-55-5565-8545Guadalajara Branch / Calle 22 No.2465, Zona Industrial, C.P.44940, Guadalajara, Jalisco, Mexico Phone: +52-33-3145-1448 Fax: +52-33-3145-1594Monterrey Branch / Av. America del Norte 209, Fracc. Industrial Las Americas, C.P.67120, Guadalupe, Nuevo Leon Phone: +52-818-334-9932 Fax: +52-818-334-9932

NTN Sudamericana, S.A. URL http://www.ntnamericas.comWorld Trade Center Panamá, Piso 16. Oficina 1601, Urbanización Marbella, Calle 53 Este, Apartado Postal 0832-0487, Panamá, República de Panamá Phone: +507-269-4777 Fax: +507-264-5592

NTN Rolamentos do Brasil Ltda. URL https://www.ntn.com.brAv. das Industrias, 380-Parque Industrial-CEP 83.820-332-Fazenda Rio Grande-PR-BRAZIL Phone: +55-41-3-627-80-00 Fax: +55-52-3-627-80-80

NTN Korea Co., Ltd. Head Office / 10th Fl., 124, Sejong-Daero, Jung-Gu, Seoul, 04520, Korea Phone: +82-2-720-3666 Fax: +82-2-720-3669Busan Branch / Rm.707, 5, Jungang-Daero 775 Beon-Gil, Busanjin-Gu, Busan, 47251, Korea Phone: +82-51-811-1351 Fax: +82-51-811-1353

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

HEADQUARTERSNTN Corporation URL https://www.ntn.co.jp1-3-17, Kyomachibori, Nishi-ku, Osaka-shi, Osaka 550-0003 Japan Phone: +81-6-6443-5001

NTN USA Corporation URL http://www.ntnamericas.com1600 E. Bishop Court, P.O. Box 7604, Mount Prospect, IL 60056-7604, U.S.A. Phone: +1-847-298-7500 Fax: +1-847-294-1209

sealed spherical roller bearings · sealed spherical roller bearings [emllx type] higher...

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