Rolling Mill Bearings
Four-Row Cylindrical Roller Bearing
Four-row cylindrical roller bearings for rolling mill work rolls and backup rolls — maximum radial load capacity for hot strip mills, plate mills, and section mills. Factory direct from ANDE bearing manufacturer.
Technical Overview
Four-Row Cylindrical Roller Bearings are designed for the most demanding heavy-load applications in steel rolling mills. The four-row configuration distributes extremely high radial loads across four rows of cylindrical rollers, providing the maximum radial load capacity in a compact design. These bearings are primarily used in the bearing chock assemblies of work rolls and backup rolls in hot strip mills, plate mills, and section mills. ANDE four-row cylindrical roller bearings are manufactured from premium bearing steel with precision-machined raceways and robust brass or steel cage designs for reliable operation under the extreme conditions of continuous steel rolling. We provide interchangeable size and performance benchmarking solutions that can directly replace equivalent four-row cylindrical roller bearings from major international manufacturers. All trademarks mentioned belong to their respective owners.
Key Features
Technical Specifications
Why use four-row cylindrical roller bearings for heavy radial rolling loads?
Four-row cylindrical roller bearings are preferred when the stand is driven primarily by radial load and the design uses separate axial location. They provide excellent stiffness, high radial load capacity, and a compact envelope for roll neck and chock assemblies.
Material and inspection focus
- Steel grade and heat treatment selected according to section size, shock loading, and operating temperature
- Radial clearance class verified against fit, lubricant, and thermal growth assumptions
- Roundness, raceway finish, and cage integrity checked before shipment
Replacement review note
Replacement review should verify boundary dimensions, lubrication groove details, and whether the existing mill stand uses separate thrust support.
Applications
Frequently Asked Questions
Q1Why are four-row cylindrical roller bearings preferred for rolling mills?
Four-row cylindrical roller bearings provide the highest radial load capacity in a compact cross-section. The four rows of rollers distribute enormous rolling forces evenly, while the separable inner and outer rings simplify installation in roll chock assemblies. This makes them the standard choice for work roll and backup roll positions in hot strip mills, plate mills, and section mills.
Q2What clearance class should I specify for hot rolling mill applications?
For hot rolling mills, C3 or C4 clearance is typically recommended to accommodate thermal expansion of the roll neck during operation. Standard CN clearance is used for cold rolling applications where temperature rise is minimal. Our engineering team can recommend the optimal clearance based on your specific mill operating temperatures.
Q3What bore diameter range is available for ANDE four-row cylindrical roller bearings?
ANDE manufactures four-row cylindrical roller bearings with bore diameters from 100 mm to 900 mm, covering virtually all rolling mill work roll and backup roll applications. Custom sizes outside this range can be produced on request with appropriate lead times.
Q4How do ANDE four-row cylindrical roller bearings compare to SKF or Timken?
ANDE four-row cylindrical roller bearings are built to the bore, outside diameter and width of the equivalent SKF, Timken, NSK and FAG models, and each one is cross-referenced to the part number it replaces. Boundary dimensions for this bearing type are not standardized, so bore and outside diameter usually carry across brands while total width and internal design frequently do not: check any replacement against the chock drawing. We use the same high-carbon chrome bearing steel and precision grinding processes, with ISO 492 class 6 dimensional and class 5 geometrical tolerances (DIN 620 codes P6 and P5). The key advantage is competitive pricing with factory-direct supply and responsive technical support.
Dimension & Load Rating Table
Reference dimensions and basic load ratings for ANDE four-row cylindrical roller bearings (FCD/FCDP series). Boundary dimensions for this type are not standardized: bore and outside diameter for many sizes fall on ISO 15:2017 diameter series 9 or 0, while total width and internal design are manufacturer-specific.
| ANDE Designation | d (mm) | D (mm) | B (mm) | C dyn (kN) | C₀ (kN) |
|---|---|---|---|---|---|
| FCD145210155 | 145 | 210 | 155 | 770 | 1,850 |
| FCD160230168 | 160 | 230 | 168 | 895 | 2,200 |
| FCD170230160 | 170 | 230 | 160 | 1,150 | 2,060 |
| FCD180260168 | 180 | 260 | 168 | 1,150 | 2,300 |
| FCD190270200 | 190 | 270 | 200 | 1,470 | 3,100 |
| FCD200270170 | 200 | 270 | 170 | 1,120 | 2,590 |
| FCD200280200 | 200 | 280 | 200 | 1,410 | 3,200 |
| FCD210290192 | 210 | 290 | 192 | 1,400 | 3,350 |
| FCD220310192 | 220 | 310 | 192 | 1,540 | 3,450 |
| FCD230330206 | 230 | 330 | 206 | 1,760 | 3,900 |
| FCD240360218 | 240 | 360 | 218 | 2,110 | 4,000 |
| FCD260370220 | 260 | 370 | 220 | 2,050 | 4,450 |
| FCD280390220 | 280 | 390 | 220 | 2,120 | 4,800 |
| FCD320460240 | 320 | 460 | 240 | 2,820 | 6,100 |
| FCDP380540400 | 380 | 540 | 400 | 6,440 | 14,600 |
| FCD400560410 | 400 | 560 | 410 | 6,550 | 16,500 |
| FCD440620450 | 440 | 620 | 450 | 8,100 | 19,700 |
| FCD460650470 | 460 | 650 | 470 | 8,600 | 21,200 |
| FCD480680500 | 480 | 680 | 500 | 9,400 | 23,500 |
| FCD500670450 | 500 | 670 | 450 | 7,750 | 20,000 |
| FCD500700500 | 500 | 700 | 500 | 9,650 | 24,600 |
| FCD530780570 | 530 | 780 | 570 | 11,800 | 29,200 |
| FCD550740510 | 550 | 740 | 510 | 10,100 | 27,600 |
| FCD560820600 | 560 | 820 | 600 | 14,100 | 34,000 |
| FCD600820575 | 600 | 820 | 575 | 12,900 | 35,500 |
| FCD650920670 | 650 | 920 | 670 | 16,200 | 44,000 |
| FCD690980750 | 690 | 980 | 750 | 19,200 | 53,000 |
| FCD7301030750 | 730 | 1030 | 750 | 20,700 | 56,500 |
| FCD7701075770 | 770 | 1075 | 770 | 23,100 | 63,500 |
| FCD8001080700 | 800 | 1080 | 700 | 19,100 | 56,000 |
| FCD8201100745 | 820 | 1100 | 745 | 20,100 | 59,000 |
| FCD8401160840 | 840 | 1160 | 840 | 24,900 | 71,500 |
| FCD8501150840 | 850 | 1150 | 840 | 25,600 | 77,500 |
| FCD9001220810 | 900 | 1220 | 810 | 25,900 | 74,500 |
Load ratings are reference values for representative ANDE FCD-series builds (machined-brass cage, P5 precision, oil lubrication). Actual values vary with cage, clearance, material, and surface finish — final selection should be confirmed by ANDE engineering against the customer drawing and operating spectrum.
ANDE ↔ SKF / NSK / Timken / FAG Cross-Reference
Bore and outside diameter usually carry across brands for ANDE FCD-series four-row cylindrical roller bearings. Total width and internal design frequently do not, because boundary dimensions for this bearing type are not standardized, so treat each row as a starting point for comparison rather than a drop-in guarantee.
| ANDE | SKF | NSK | d × D × B (mm) |
|---|---|---|---|
| FCD145210155 | BC4-0101 | STF145RV2101g | 145 × 210 × 155 |
| FCD160230168 | BC4-0114 | STF160RV2302g | 160 × 230 × 168 |
| FCD170230160 | BC4-0118 | STF170RV2321g | 170 × 230 × 160 |
| FCD180260168 | BC4-0114 D | STF180RV2601g | 180 × 260 × 168 |
| FCD200270170 | BC4-0095 | STF200RV2702g | 200 × 270 × 170 |
| FCD220310192 | BC4-0117 | STF220RV3101g | 220 × 310 × 192 |
| FCD280390220 | 315526 (variant) | STF280RV3901g | 280 × 390 × 220 |
| FCDP380540400 | BC4B 320989/HA3 | STF380RV5402g | 380 × 540 × 400 |
| FCD400560410 | BC4B 322039/HA1 | STF400RV5611g | 400 × 560 × 410 |
| FCD460650470 | 315196 A | STF460RV6513g | 460 × 650 × 470 |
| FCD480680500 | 319320 | STF480RV6815g | 480 × 680 × 500 |
| FCD500700500 | 319254/VJ202 | STF500RV7011g | 500 × 700 × 500 |
| FCD560820600 | BC4-0231 | STF560RV8211g | 560 × 820 × 600 |
| FCD650920670 | 239509 FA | STF650RV9212g | 650 × 920 × 670 |
| FCD8201100745 | BC4B 316341/HA4 | STF820RV1119g | 820 × 1100 × 745 |
Cross-reference is based on matching bore, outside diameter and width, not on a dimensional standard: boundary dimensions for this bearing type are not standardized. Internal design (cage type, clearance, lubrication groove pattern, sealing) may also differ between manufacturers. Final replacement should be verified against the customer's chock drawing and the OEM's catalogue revision in force. All trademarks belong to their respective owners.
Related Products
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Four-Row Tapered Roller Bearing
Four-row tapered roller bearings for rolling mill applications — combined radial and axial load support for work roll and backup roll chock assemblies. Interchangeable with major brand equivalents. Factory direct from ANDE.