FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.
FV backing bearings are available in many designs and variants. The main assortment is based on double or three-row cylindrical roller bearings. Backing bearings have been specially developed for cold rolling mills of the cluster type, but can also be used for other applications, such as straightening or bending machines. These bearings have a particularly thick-walled outer ring and can be mounted on stationary support shafts to form backup or straightening rolls.
FV backing bearings are available in many designs and variants. The main assortment is based on double or three-row cylindrical roller bearings. Single row needle roller bearing and double row tapered roller bearing designs are also available.
Back-up rollers Multi-roll cold mill stands are described using different terms depending on their type and manufacturer:
■ 12 and 20 roll stand
■ Z-High.
■ S-High.
Multi-roll cold rolling mills are used to process high grade steel strip and non-ferrous metal strip. In order to prevent whipping of the work rolls, they are supported by means of intermediate rolls and support shafts. Several back-up rollers are arranged adjacent to each other on these support shafts and separated by support saddles. These allow the requisite distribution of roll load. Depending on their type, back-up rollers can support high radial forces or high radial forces together with axial forces that are transmitted to the stand via the adjacent construction.
The quality of the rolled metal sheet is determined not only by the bending rigidity of the entire support shaft but also the section height tolerance, running accuracy and surface quality of the outer ring outside surface of the individual back-up rollers. Back-up rollers
■ are manufactured with restricted tolerances ■ have a running accuracy better than P4
■ are classified in three to seven section height groups each of 3 um to 5 um
■ are suitable for high loads
■ are suitable for high strip speeds, up to 1000 m/min depending on operating conditions
■ are manufactured in 3 types. These specific characteristics ensure the necessary surface quality and flatness of the rolled products. As a result, sheet metal can be produced economically to very fine thickness tolerances and optimum surface quality.
Backing bearings have been specially developed for cold rolling mills of the cluster type, but can also be used for other applications, such as straightening or bending machines. These bearings have a particularly thick-walled outer ring and can be mounted on stationary support shafts to form backup or straightening rolls. Pic shows the arrangement of the backing bearings on the eight support shafts of a 20-roll mill.
If you need more information about other brands or specifications, please check the Case-show menu.
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Principal dimensions [mm] | Basic load ratings [kN] | Fatigue load limit [kN] | Maximum radial loads [kN] | Designation | ||||||
dynamic | static | dynamic | static | |||||||
D | d | H max. | B | C | C | Co | Pu | Fr max. | For max. | |
120 | 55 | 32.493 | 52.2 | 52 | 123 | 275 | 36 | 224 | 315 | 396040 |
120 | 55 | 32.496 | 26 | 26 | 58.3 | 98 | 11.6 | 108 | 153 | 610627 B |
160 | 70 | 44.982 | 90 | 90 | 358 | 585 | 80 | 315 | 455 | 315268 B |
160 | 70 | 45 | 90 | 89 | 270 | 345 | 45.5 | 250 | 365 | BCZ-0525 B |
165 | 70 | 47.5 | 90 | 88 | 297 | 390 | 52 | 285 | 415 | BCZ-0529 |
165 | 70 | 47.5 | 120 | 118 | 314 | 465 | 61 | 355 | 510 | BCZ-0503 AA |
220 | 90 | 64.979 | 120 | 120 | 501 | 750 | 90 | 415 | 585 | 316737 AC |
220 | 90 | 65 | 96 | 94 | 457 | 550 | 68 | 335 | 480 | BCZ-0508 |
220 | 90 | 65 | 120 | 119 | 484 | 640 | 78 | 440 | 630 | BCZ-0507 |
220 | 90 | 65 | 122 | 119 | 468 | 600 | 72 | 440 | 630 | BCZ-0512 |
225 | 100 | 62.479 | 80 | 80 | 418 | 620 | 75 | 380 | 550 | BCZ-0514 |
225 | 100 | 62.479 | 120 | 120 | 660 | 1120 | 137 | 560 | 800 | 315018 C |
225 | 100 | 62.479 | 120 | 120 | 660 | 1120 | 143 | 560 | 800 | 315018 A |
225 | 100 | 62.481 | 120 | 119 | 539 | 735 | 88 | 405 | 570 | BCZ-0075 A |
225 | 100 | 62.481 | 120 | 119 | 594 | 815 | 98 | 400 | 570 | BCZ-0011 |
225 | 100 | 62.485 | 120 | 118 | 501 | 695 | 85 | 475 | 670 | BCZ-0509 |
225 | 100 | 62.5 | 120 | 120 | 660 | 980 | 116 | 450 | 640 | BCZ-0513 |
250 | 130 | 60 | 106 | 103 | 528 | 735 | 80 | 390 | 550 | BCZ-0052 |
260 | 110 | 74.98 | 98 | 98 | 616 | 800 | 91.5 | 335 | 475 | BC2B 322564 |
260 | 110 | 74.98 | 110 | 109 | 561 | 695 | 80 | 440 | 630 | BCZ-0504 |
280 | 110 | 85 | 130 | 128 | 765 | 1060 | 125 | 900 | 1290 | BCZ-0113 |
280 | 110 | 85 | 130 | 128 | 765 | 1060 | 125 | 900 | 1290 | BCZ-0113 A |
280 | 120 | 80 | 160 | 158 | 809 | 1340 | 850 | 1220 | BCZ-0034 A | |
300 | 130 | 84.965 | 160 | 159.5 | 1080 | 1630 | 180 | 765 | 1100 | 319028 A/HA2 |
300 | 130 | 84.965 | 172.64 | 172.64 | 1170 | 1800 | 200 | 830 | 1180 | 314833 B |
300 | 130 | 84.965 | 172.64 | 172.64 | 1170 | 1800 | 200 | 830 | 1180 | 314833 BC |
300 | 130 | 84.98 | 172.65 | 172.65 | 1140 | 1460 | 163 | 780 | 1120 | BCZ-0532/PEX |
300 | 130 | 84.98 | 172.65 | 172.65 | 1140 | 1460 | 163 | 815 | 1160 | BCZ-0532 A/PEX |
300 | 130 | 84.985 | 132 | 129 | 880 | 1160 | 129 | 500 | 710 | BCZ-0517 A |
300.02 | 130 | 84.988 | 172.65 | 171.6 | 1080 | 1500 | 170 | 695 | 1500 | BC2B 320432 AE |
406.42 | 180 | 113.155 | 171.04 | 171.04 | 1510 | 2320 | 240 | 1180 | 1660 | 316388 AB |
406.42 | 180 | 113.155 | 224 | 224 | 1900 | 3100 | 320 | 1530 | 2200 | 315515 AB |
520 | 205 | 157.445 | 168 | 168 | 2090 | 2900 | 270 | 1900 | 2650 | BCZ-8004 |
FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.
FV Bearings uses best materials to produce high quality and precision ball bearings, deep groove ball bearings, thrust ball bearings and any other types of bearings. The company accept all bearings manufacturing and OEM services.
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.
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.
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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