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Sealed type,Four row tapered roller bearings (NTN)

Sealed type,Four row tapered roller bearings (NTN)

Sealed Four Row Tapered Roller Bearings for Rolling Mill Roll-Necks The CROU··LL series sealed four row tapered roller bearings are new standard series products especially developed to satisfy the “high load capacity”, “high load resistance performance” and “high sealing performance” required for steel mill roll-neck applications and to improve reliability through long life design.
Size range: I.D. : 195 to 710.550 mm
O.D. : 270 to 946.150 mm
Applications: Rolling mills

NTN 4 row tapered roller bearings - table

FV bearing code

d

D

B

C

Mass
(Kg)

 Replace NTN code ( Ultage-CROULL )

S4T-CRO-2810LL

140

198

174

174

16

CRO-2810LL** Sealed type, Four row tapered roller bearings

S4T-CRO-2812LL

140

198

174

174

15.5

CRO-2812LL** Sealed type, Four row tapered roller bearings

S4T-CRO-4022LL

200

282

206

206

39

CRO-4022LL** Sealed type, Four row tapered roller bearings

S4T-CROU-4401LLA1X

220

295

315

315


CROU-4401LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-4424LL

220

295

315

315

57.5

CRO-4424LL** Sealed type, Four row tapered roller bearings

S4T-CRO-4427LL

220

310

280

280

63.5

CRO-4427LL** Sealed type, Four row tapered roller bearings

S4T-CRO-4436LL

220

320

290

290

77

CRO-4436LL** Sealed type, Four row tapered roller bearings

S4T-CROU-4501LLA1X

225

320

230

230


CROU-4501LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-4801LLA1X

240

338

248

248


CROU-4801LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-4811LL

240

338

248

248

67.8

CRO-4811LL** Sealed type, Four row tapered roller bearings

S4T-CROU-4802LLA1X

240

338

340

340


CROU-4802LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-4817LL

240

338

340

340

94.4

CRO-4817LL** Sealed type, Four row tapered roller bearings

S4T-CRO-4906LL

245

345

310

310

90.5

CRO-4906LL** Sealed type, Four row tapered roller bearings

S4T-CROU-5001LLA1X

250

365

270

270


CROU-5001LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-5015LL

250

365

270

270

90

CRO-5015LL** Sealed type, Four row tapered roller bearings

S4T-CROU-5201LLA1X

260

365

340

340


CROU-5201LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-5224LL

260

365

339

339

103

CRO-5224LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5660LL

280

380

290

290

90

CRO-5660LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5665LL

280

395

290

290

108

CRO-5665LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5664LL

280

395

340

340

126

CRO-5664LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5639LL

280

410

268

268

116

CRO-5639LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5709LL

285

400

340

340

134

CRO-5709LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5814LL

290

400

346

346

129

CRO-5814LL** Sealed type, Four row tapered roller bearings

S4T-CROU-6001LLA1X

300

420

310

310


CROU-6001LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-6038LL

300

400

254

254

84.6

CRO-6038LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6042LL

300

420

310

310

128

CRO-6042LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6031LL

300

430

295

305

136

CRO-6031LL** Sealed type, Four row tapered roller bearings

S4T-CROU-6201LLA1X

310

430

350

350


CROU-6201LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-6220LL

310

430

310

310

133

CRO-6220LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6222LL

310

430

350

350

150

CRO-6222LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6426LL

320

480

360

360

228

CRO-6426LL** Sealed type, Four row tapered roller bearings

S4T-CRO-7109LL

355

490

316

316

159

CRO-7109LL** Sealed type, Four row tapered roller bearings

S4T-CRO-7226LL

360

480

375

375

180

CRO-7226LL** Sealed type, Four row tapered roller bearings

S4T-CROU-8201LLA1X

410

546

400

400


CROU-8201LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-8204LL

410

546

400

400

253

CRO-8204LL** Sealed type, Four row tapered roller bearings

S4T-CRO-8412LL

420

620

395

320

384

CRO-8412LL** Sealed type, Four row tapered roller bearings

S4T-CROU-8801LLA1X

440

590

480

480


CROU-8801LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-8802LLA1X

440

620

454

454


CROU-8802LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-8830LL

440

590

480

480

358

CRO-8830LL** Sealed type, Four row tapered roller bearings

S4T-CRO-8832LL

440

620

454

454

426

CRO-8832LL** Sealed type, Four row tapered roller bearings

S4T-CROU-10601LLA1X eg

530

780

570

570


CROU-10601LLA1X eg** Sealed type, Four row tapered roller bearings

S4T-CRO-10607LL

530

715

590

590

700

CRO-10607LL** Sealed type, Four row tapered roller bearings

S4T-CRO-4303LL

216.103

330.2

263.525

269.875

78.2

CRO-4303LL** Sealed type, Four row tapered roller bearings

S4T-CROU-4402LLA1X

220.662

314.325

239.712

239.712


CROU-4402LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-5101LLA1X

254

358.775

269.875

269.875


CROU-5101LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-5117LL

254

358.775

269.875

269.875

83

CRO-5117LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5116LL

254

358.775

269.875

269.875

81.7

CRO-5116LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5227LL

260.35

422.275

314.325

317.5

177

CRO-5227LL** Sealed type, Four row tapered roller bearings

S4T-CRO-5652LL

279.4

393.7

269.875

269.875

96.4

CRO-5652LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6143LL

304.648

438.048

280.99

279.4

136

CRO-6143LL** Sealed type, Four row tapered roller bearings

S4T-CROU-6101LLA1X

304.902

412.648

266.7

266.7


CROU-6101LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-6901LLA1X

343.052

457.098

254

254


CROU-6901LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-6902LLA1X

343.052

457.098

299

299


CROU-6902LLA1X** Sealed type, Four row tapered roller bearings

S4T-CRO-6930LL

343.052

457.098

254

254

105

CRO-6930LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6920LL

343.052

457.098

254

254

107

CRO-6920LL** Sealed type, Four row tapered roller bearings

S4T-CRO-6936LL

343.052

457.098

299

299

130

CRO-6936LL** Sealed type, Four row tapered roller bearings

S4T-CRO-9107LL

457.2

596.9

276.225

279.4

192

CRO-9107LL** Sealed type, Four row tapered roller bearings

S4T-CRO-9610LL

479.425

679.45

495.3

495.3

565

CRO-9610LL** Sealed type, Four row tapered roller bearings

S4T-CRO-9725LL

482.6

615.95

330.2

330.2

225

CRO-9725LL** Sealed type, Four row tapered roller bearings

S4T-CROU-10001LLA1X

501.65

711.2

520.7

520.7


CROU-10001LLA1X** Sealed type, Four row tapered roller bearings

S4T-CROU-11901LLA1X eg

595.312

844.55

615.95

615.95


CROU-11901LLA1X eg** Sealed type, Four row tapered roller bearings

S4T-CRO-11919LL

595.312

844.55

615.95

615.95

1130

CRO-11919LL** Sealed type, Four row tapered roller bearings

S4T-CRO-14214LL

711.2

914.4

387.35

387.35

616

CRO-14214LL** Sealed type, Four row tapered roller bearings

S4T-CRO-14209LL

711.2

914.4

410

410

596

CRO-14209LL** Sealed type, Four row tapered roller bearings


STRENGTH WHERE IT COUNTS

Flat product rolling mills require well engineered bearings that can operate at high speeds and withstand harsh environments, all while carrying heavy loads. At the same time, there’s constant pressure to increase productivity while reducing costs. 

For more than 20 years, FV has provided high-quality bearings for rigorous applications in hot and cold rolling mills, while continuously improving the company’s bearings and seals to keep pace with the demands of the metals industry. 

FV engineering experience and know-how are reflected in the newest sealed roll neck bearing design. It offers industry-leading tapered roller bearing design, combined with advanced proprietary sealing solutions to reduce contamination ingress and extend bearing life, expected to result in a lower cost-per-ton-rolled for mill operators. 

IMPROVED MAIN SEAL DESIGN CAN SIGNIFICANTLY BOOST PERFORMANCE 

Contaminants and water ingress can reduce bearing life and excessive grease loss can lead to increased maintenance costs or strip staining. FV technologists developed new, innovative seals that can address these operating concerns with a design that’s also easy for the maintenance professional to use, resulting in the integrated main seal design. 
 

Leveraging 15 years of seal development expertise, FV costs or strip staining. technologists developed created innovative sealing solutions that may provide major benefits to mill operators, including:
 

• Longer bearing life due to improved sealing against water and contaminant ingress and maximum bearing load rating within the envelope.

• Potential for extended maintenance intervals due to reduced grease loss and contamination ingress. 

• Lower cost of ownership due to less required maintenance and longer bearing life.

• Easy-to-assemble seals that reduce bearing maintenance time.

ENGINEERED FOR RELIABILITY UNDER HARSH CONDITIONS 

Mill operators depend on high-performance bearings to keep their operations running smoothly. The FV roll neck bearing with an integrated seal can handle difficult working conditions, including high temperatures and speeds, as well as heavy shock loads and misalignment.


• Enhanced sealing due to high-performance seal designs with improved contact geometry.

• Improved performance in marginal lubrication due to better surface finishes.

• Misalignment accommodated by enhanced roller profiling for uniform load distribution.

• Increased toughness and fatigue life from case-carburized components.

• Improved load sharing provided by four single cups.

• Reduced cone face wear due to inboard and outboard cone face slots

• Reduced potential for roll neck damage due to spiral bore grooves with blended radii that provide lubricant access to the roll neck.

• Fewer components to handle due to advanced integrated design with no center spacers or seal carriers.

• More effective exclusion of contaminants from the chock bore due to sealing at cup outer diameter.

OPTIONAL FEATURES 

PRE-GREASED ASSEMBLY: Bearings can be supplied as pre-greased assemblies. Several grease options are available, including FV Premium Mill grease, which is known for its excellent resistance to water washout. FV sealed roll neck bearings and seals are designed to work with different types of oil lubrication systems, as well. Contact your FV engineer for assistance with grease type, fill recommendations and applications in oil-lubricated systems.

SOLID CUP SPACERS: The standard sealed bearing can be re-lubricated in the chock through the holes in the cup spacers. For chocks which are not configured with lubrication lines, the sealed bearing can be provided with solid cup spacers. 

CENTER DOUBLE CUP: The standard sealed bearing design contains four single cups; however, a double cup version is available upon request.


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FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.

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FV Bearings Co.Ltd has rich experiences in bearings manufacturing and processing, the professional bearing engineers can handle your requirements on bearings exactly and output the accurate bearing products.

World’s leading roller bearings manufacturer

FV Bearings is a leading roller bearings manufacturer provides high quality and durable roller bearings for different industries such as automotive, aerospace, machinery, power plants, chemistry industry, agriculture and other fields.

Solutions for special bearings and high end bearings

If you are looking for special bearings and high end bearings, FV bearings can help you to customize any special bearings according to your needs based on advanced bearings manufacturing technology.

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