- 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
- Igbo
- Javanese
- Kannada
- Kazakh
- Khmer
- Kurdish
- Kyrgyz
- Latin
- Latvian
- Lithuanian
- Luxembou..
- Macedonian
- Malagasy
- Malay
- Malayalam
- Maltese
- Maori
- Marathi
- Mongolian
- Burmese
- 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
UC210-31
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 specifically engineered for industrial applications demanding high load capacity, straightforward installation, and dependable performance.
UC Series Bearings
| ISO | UC210-31 | |
| Bore diameter | d | 1-15/16 in |
| Outside diameter | D | 3.5433 in |
| Width of inner ring | B | 2.0315 in |
| Distance front side/bearing centre | s | 0.748 in |
| Width of outer ring | C | 0.9449 in |
| Distance from locking device side face to raceway centre | s1 | 1.283 in |
| Set screw | ds | 3/8-24UNF in |
| Distance to set screw | G | 0.394 in |
| Distance center of OR to center of lubrication zone | F | 0.256 in |
| Basic dynamic load rating | C | 21 kN |
| Basic static load rating | C0 | 13.9 kN |
| Mass bearing | 0.77 kg | |
Structure of UC Series Bearings
A typical UC bearing unit comprises the following key components:
- Pillow Block Housing:Typically made of grey cast iron or ductile iron (e.g., UC-P suffix), featuring mounting holes (plummer block base, with bolt holes or tapped holes), providing robust support and stability.
- Outer Spherical Deep Groove Ball Bearing:The bearing has an inner ring designed to fit onto a standard cylindrical shaft (e.g., tolerance h7). Its outer ring features a spherical outer surface that seats within the housing's spherical bore.
- Sealing Arrangement:Equipped with seals on both sides (usually rubber like NBR or FKM) to effectively prevent the ingress of contaminants, dirt, and moisture while retaining internal lubricant.
- Locking Device:Primarily utilizes an adapter sleeve (eccentric or withdrawal type) combined with a lock nut and washer. This unique mechanism allows the bearing to be firmly secured to the shaft using friction, greatly simplifying mounting and dismounting processes. (Note: Some UC variants use a tapered bore inner ring with a tapered adapter sleeve).
Key Characteristics of UC Series Bearings
- Self-Aligning Capability:The spherical fit between the outer ring and housing bore allows the bearing to accommodate small shaft misalignment (typically up to ±3°), compensating for installation errors or shaft deflection.
- Easy Installation and Maintenance:The pre-assembled unit design, combined with the adapter sleeve locking system, enables extremely fast and tool-free mounting/dismounting on cylindrical shafts, minimizing downtime and maintenance costs.
- Superior Sealing:Standard seals offer excellent protection against harsh environments, extending bearing life.
- Robust Load Capacity:The sturdy cast iron housing and deep groove ball bearing construction provide good radial load capacity and moderate axial load capacity.
- Broad Compatibility & Interchangeability:Manufactured to ISO metric standards (IS), ensuring ease of replacement and sourcing of spare parts globally.
Applications of UC Series Bearings
Thanks to their durability, ease of use, and reliable performance, UC bearings are found in a vast array of industries and applications:
- Agricultural Machinery (Tractors, Harvesters, Planters)
- Conveying Equipment (Belt Conveyors, Roller Conveyors)
- Ventilation and HVAC Systems (Fans)
- Material Handling Machinery
- Construction Equipment
- Food and Beverage Processing Lines
- Textile Machinery
- General Industrial Drives (Motors, Gearboxes, Pulleys)
Choosing UC Series Bearings means choosing reliability, cost-effectiveness, and operational efficiency.
Contact Us
Related Products
32019
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.
676 2RS
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…
UCT209
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…
GEG50ES 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…
GE80ES
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…
UC320-64
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…
-
-
-
grashbearings@outlook.com
-
+86-13863568175