- English
- Chinese
- French
- German
- Portuguese
- Spanish
- Russian
- Japanese
- Korean
- Arabic
- Irish
- Greek
- Turkish
- Italian
- Danish
- Romanian
- Indonesian
- Czech
- Afrikaans
- Swedish
- Polish
- Basque
- Catalan
- Esperanto
- Hindi
- Lao
- Albanian
- Amharic
- Armenian
- Azerbaijani
- Belarusian
- Bengali
- Bosnian
- Bulgarian
- Cebuano
- Chichewa
- Corsican
- Croatian
- Dutch
- Estonian
- Filipino
- Finnish
- Frisian
- Galician
- Georgian
- Gujarati
- Haitian
- Hausa
- Hawaiian
- Hebrew
- Hmong
- Hungarian
- Icelandic
- Javanese
- Kannada
- Kazakh
- Khmer
- Kurdish
- Kyrgyz
- Latin
- Latvian
- Lithuanian
- Luxembou..
- Macedonian
- Malagasy
- Malay
- Malayalam
- Maltese
- Maori
- Marathi
- Mongolian
- Burmese
- Nepali
- Norwegian
- Pashto
- Persian
- Punjabi
- Serbian
- Sesotho
- Sinhala
- Slovak
- Slovenian
- Somali
- Samoan
- Scots Gaelic
- Shona
- Sindhi
- Sundanese
- Swahili
- Tajik
- Tamil
- Telugu
- Thai
- Ukrainian
- Urdu
- Uzbek
- Vietnamese
- Welsh
- Xhosa
- Yiddish
- Yoruba
- Zulu
- Kinyarwanda
- Tatar
- Oriya
- Turkmen
- Uyghur
Category
NJ422
Cylindrical roller bearings are rolling bearings specifically engineered to accommodate high radial loads. Their key rolling elements are cylindrical rollers that make linear contact with the raceways. This design makes them exceptionally effective at handling pure radial forces, serving as critical components in a vast array of industrial applications. Compared to ball bearings of the same size, they offer significantly higher radial load-carrying capacity.
Cylindrical Roller Bearing
| ISO | NJ422 | |
| ГОСТ | 42422 | |
| Bore diameter | d | 110 mm |
| Outside diameter | D | 280 mm |
| Width | B | 65 mm |
| Basic dynamic load rating | C | 330 kN |
| Basic static load rating | C0 | 373 kN |
| Reference speed | 1700 r/min | |
| Limiting speed | 1300 r/min | |
| Weight | 20.32 kg | |
Structure of Cylindrical Roller Bearings
- A typical cylindrical roller bearing consists of the following main components:
- Outer Ring:Usually features fixed ribs or flanges on one or both sides to provide axial guidance for the rollers.
- Inner Ring:Also typically has ribs or flanges for roller guidance. Depending on the design, the inner ring can be integral with ribs or separable (facilitating mounting).
- Cylindrical Rollers:Precision-ground cylindrical rolling elements that are the core load-carrying components. Roller length is usually slightly less than their diameter.
- Cage (Retainer):Separates the rollers evenly, prevents them from rubbing against each other, and guides them correctly within the raceways. Cage materials include steel, brass, or polymers (e.g., polyamide/nylon).
Characteristics of Cylindrical Roller Bearings
- High Radial Load Capacity:The line contact design enables them to handle significantly higher radial loads than same-sized ball bearings.
- High Radial Rigidity:Excellent stiffness in the radial direction, resulting in minimal deformation under load.
- Low Friction:Low rolling resistance contributes to high efficiency.
- High-Speed Capability:Well-designed bearings (especially with lightweight cages) are suitable for high rotational speeds.
- Separability:Many types (e.g., NU, NJ designs) feature separable rings (inner and/or outer), simplifying mounting, dismounting, and maintenance.
- Limited Axial Load Capacity:Generally can only accommodate very small axial loads (depending on rib design), or require combination with other bearings to handle axial forces.
Applications of Cylindrical Roller Bearings
Cylindrical roller bearings are widely used in applications demanding high radial load capacity and rigidity:
- Electric Motors and Generators:Rotor support.
- Gearboxes and Reducers:Gear shaft support.
- Rolling Mills:Work roll and backup roll chocks.
- Pumps and Compressors:Shaft support.
- Vibrating Screens:Handling vibratory loads.
- Construction Machinery:Slewing rings in excavators, cranes.
- Wind Turbines:Main shaft bearings.
- Machine Tool Spindles:Where high rigidity and precision are critical.
- Printing Machinery:Cylinder support.
Premium-quality cylindrical roller bearings ensure mission-critical reliability where maximum radial load capacity is non-negotiable.
Contact Us
Related Products
UCP305
The UC series bearings refer to standardized, widely-used pillow block ball bearing units with adapter sleeves. At their core is a deep groove ball bearing featuring a spherical outer diameter (SPB) designed to fit into the matching spherical bore of a cast iron housing. Adhering to metric dimensions, this series is…
GE160ES 2RS
Spherical Plain Bearings, also known as joint bearings, are mechanical components uniquely designed to accommodate angular misalignment and oscillating or rotating movements between connected parts. Unlike standard ball or roller bearings, they feature a spherically shaped sliding contact surface (inner ring) articulating within a matching spherical outer ring. This design…
HK2520
Needle roller bearings utilize cylindrical rollers with a length-to-diameter ratio exceeding 4:1. This “needle-like” geometry enables exceptional radial load capacity within extremely compact cross-sections, providing superior space efficiency compared to ball bearings of equivalent dimensions.
7301 C
Angular Contact Ball Bearings (ACBBs) are precision-engineered bearing units uniquely designed to handle combined radial and axial loads, simultaneously. Unlike standard deep groove ball bearings, they incorporate contact angles (typically between 15° to 40°), enabling them to support substantial axial forces in one direction, often alongside moderate radial forces. This…
6034 ZZ
A Deep Groove Ball Bearing is one of the most widely used types of rolling bearings. It consists of an inner ring, outer ring, steel balls, and a cage (or sealing components). The deep groove raceways on the inner and outer rings allow it to withstand radial loads and limited…
30204
Tapered roller bearing is a precision rolling-element bearing designed to handle combined radial and heavy single-direction axial loads simultaneously. Its namesake conical geometry is key, enabling it to efficiently manage and transfer these combined loads.
-
-
-
grashbearings@outlook.com
-
+86-13863568175