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High-Precision Cylindrical Roller Bearings--CAGRI Bearings
Product Overview
Cagri Bearings- Professional Supplier of Cylindrical Roller Bearings.Cylindrical Roller Bearing is a radial rolling bearing with cylindrical rollers as rolling elements, featuring line contact or modified line contact between rollers and raceways, which provides excellent high radial load capacity. It is mainly classified into three core categories by the number of roller rows: Single-row, Double-row, and Four-row. Common single-row models include Type N (outer ring without ribs, inner ring with double ribs), Type NU (outer ring with double ribs, inner ring without ribs), Type NJ (outer ring with double ribs, inner ring with single rib), Type NUP (outer ring with double ribs, inner ring with single rib + separable flat rib) etc.; double-row models are mainly Type NN (outer ring without ribs, inner ring with double ribs + middle rib) and Type NNU (outer ring with double ribs + middle rib, inner ring without ribs); four-row models include Type FC (two outer rings and one inner ring) and Type FCD (combination of two NN types). Precision grades are divided into five levels from low to high: P0, P6, P5, P4, P2, among which P4 and P2 grades are suitable for ultra-precision scenarios such as machine tool spindles. Cage materials include stamped steel, machined brass and molded polyamide, while some high-end models adopt glass fiber-reinforced PEEK to adapt to high-speed operation requirements.
What is Cylindrical Roller Bearings?
Cylindrical Roller Bearing is a core mechanical component designed for heavy radial loads and impact loads. It features low friction coefficient, limiting speed close to deep groove ball bearings, and separable inner and outer rings for easy installation and disassembly. With the characteristic of axial displacement (models like N, NU, NN), it can adapt to the relative position change between shaft and housing caused by thermal expansion or installation errors, and is often used as free-end bearings; while models such as NUP and NH can bear bidirectional axial loads, suitable for fixed-end positioning scenarios. These bearings are widely compatible with various industrial equipment, from ordinary motors and pumps to high-end machine tool spindles, wind turbines, and even heavy machinery like rolling mills for metallurgy, all meeting their dual requirements for load capacity and operation precision.
CAGRI Cylindrical Roller Bearing Advantages
CAGRI Cylindrical Roller Bearings have built four core competitive advantages relying on innovative design and strict craftsmanship:
- Super enhanced load capacity – adopting proprietary roller and raceway profile design, the optimized line contact structure increases radial load capacity by more than 20% compared with ordinary bearings, suitable for extreme heavy-load scenarios;
- High precision and rigidity – the whole product series covers precision grades from P5 to P2, and through roller guidance technology and precision grinding process, the operation runout error of equipment such as spindles is controlled at the micron level, and the rigidity of double-row models is 40% higher than that of single-row ones;
- Long-term stable operation – using carbon fiber-reinforced PEEK cages (for some models) to reduce roller drag and frictional heat generation, combined with the design of outer ring lubrication grooves and three lubrication holes (suffix W33), the grease life is extended by 50%, and the operating temperature range is widened to -40℃ to 120℃;
- Full-scenario adaptation and fast delivery – covering all categories of single-row, double-row and four-row, providing options of cylindrical bore and 1:12 tapered bore (suffix K), regular models are available in stock, and the delivery cycle of customized products is shortened by 30%, meeting the needs of emergency maintenance and mass production.
Application
Category | ||
Metallurgy & Mining Machinery | General Industrial Machinery | Aerospace Equipment |
Machine Tool Industry | Transportation & Heavy Machinery |
|
Energy Equipment | Automotive Industry | |
Subcategory | |
Rolling Equipment, Mining Equipment | Railway Equipment, Construction Machinery |
Spindle Systems, Feed Mechanisms | Transmission Systems, Chassis Components |
Wind Power Equipment, Power Generation Equipment | Engine Systems, Transmission Mechanisms |
Transmission Equipment, Fluid Machinery | |
| Applicable Products |
| Cold/hot rolling mills, blooming mills, crushers, ball mills, bar mills, mine hoists |
| CNC machine tool spindles, machining center spindles, grinder spindles, lathe spindles, milling machine feed shafts |
| Wind turbine spindles, steam turbines, generator rotors, hydraulic turbines, photovoltaic equipment transmission systems |
| Gearboxes, reducers, centrifugal pumps, air compressors, injection molding machines, extruders, blowers |
| Railway locomotive axles, crane pulleys, loaders, excavators, forklift drive axles, heavy-duty truck gearboxes |
| Automotive gearboxes, drive axles, differentials, motor bearing units |
| Aerospace engine spindles, aerospace transmission components, UAV power systems |
>>single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs.
>>double row cylindrical roller bearings, caged, mainly of the NNUand NN designs.
>>single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs.
>>double row full complement cylindrical roller bearings, mainly of the NNF design.
Cylindrical roller bearings with a cage can accommodate heavy radial loads and operate at high speeds. Full complement cylindrical roller bearings are suitable for very heavy radial loads at moderate speeds. Cylindrical roller bearings has a high carrying capacity, was widely used in agricultural machinery, large and medium-sized motors, rolling stock equipment, machine tool spindle, internal combustion engine, generator, gas turbine, gear box, rolling mill machine, vibrating screen and lifting machinery etc.
In a single row cylindrical roller bearing, the rollers are always guided between the integral “open” flanges on one of the rings. These “open” flanges combined with the specially designed and surface finished roller ends, provide improved lubrication, reduced friction and consequently lower operating temperature. The ring with the integral flanges together with the cylindrical roller and cage assembly can be separated from the other ring. This results in easy mounting and dismounting, particularly where the load conditions are such that interference fits are required for both rings.
Our single row cylindrical roller bearings can accommodate heavy radial loads and high speeds. They are manufactured in several different designs, the main difference being in the configuration of the flanges.
NU design | The outer ring of an NU-design bearing has two integral flanges while the inner ring has no flanges (a). Axial displacement of the shaft with respect to the housing can be accommodated in both directions. |
N design | The inner ring of an N-design bearing has two integral flanges while the outer ring has no flanges (b). Axial displacement of the shaft with respect to the housing can be accommodated in both directions. |
NJ design | The outer ring of an NJ-design bearing has two integral flanges and the inner ring has one integral flange (c). These bearings can locate the shaft axially in one direction. |
NUP design | The outer ring of an NUP-design bearing has two integral flanges and the inner ring has one integral flange and one non-integral flange in the form of a loose flange ring (d). These bearings can be used as locating bearings to locate the shaft axially in both directions. |
NU+HJ execution | An NU –type bearing combined with an HJ angle ring (e) can be used to locate the shaft axially in one direction. Recommends not to fit standard angle rings at both sides of an NU-type bearing as this can lead to axial compression of the rollers. |
NJ+HJ execution | An NJ-type bearing combined with an HJ angle ring (f) can be used to locate the shaft axially in both directions. |
RNU design | NU-design cylindrical roller bearing without an inner ring |
RN design | N-design bearings without an outer ring |
FAQ
CAGRI BEARINGS
Website：www.camcjsw-bearings.com
SINO-MACHINERY AGRO-DEVELOPMENT INVESTMENT CO., LTD. JIANGSU BRANCH
JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION LTD.
TEL：+86-510-8273 6527(Business)
+86-510-8270 1813(General)
FAX：+86-510-8272 5039/ 8271 0822
E-MAIL：guchenglong@camcjsw.com
camcjsw@camcjsw.com(General)
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