Compressor Bearings
-- Steady & Reliable Manufacturer --
Brief Description
High-speed, thermally stable precision bearings (often Angular Contact or Cylindrical Roller) critical for the operational efficiency and high-pressure compression cycles of air and gas compressors.
Introduction
Compressors, particularly high-speed screw and centrifugal types, generate significant heat and internal pressure thrust loads. The bearings must maintain dimensional stability and high precision under these severe thermal conditions. We supply precision-grade bearings (P5/P4) designed with specialized internal clearances (C3/C4) and high-temperature lubrication to prevent heat-related seizure. For screw compressors, our bearings are critical for maintaining the precise rotor timing, directly impacting volumetric efficiency and overall system performance.
Related products
Specification Standards
| Key Feature | Common Type | NSB Offering |
|---|---|---|
| High Speed | Cylindrical Roller Bearings (NU, NJ) | Excellent for high radial speeds with low friction. |
| Thrust Handling | Angular Contact Ball Bearings | Used in paired or tandem sets to manage axial loads. |
| Internal Clearance | C3 or C4 | Essential for thermal expansion compensation. |
| Precision Class | P5 or P4 (ABEC 5 or 7) | High running accuracy to reduce vibration at speed. |
| Lubrication | High-temperature synthetic oil/grease | Maintains film strength under extreme heat. |
Applications
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Screw Compressors: Supporting the main and gate rotors.
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Centrifugal Compressors: High-speed turbo machinery requiring P4 precision.
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Reciprocating Compressors: Crankshaft and connecting rod bearings (often cylindrical roller).
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Refrigeration: Hermetic and semi-hermetic chiller compressors.
Key Advantages
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Thermal Stability: Material and design choices ensure stable performance despite high operating temperatures.
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Precise Rotor Positioning: Critical for screw compressors to prevent contact between rotors, maximizing efficiency.
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Low Friction at High Speed: Optimized geometry and cage design minimize energy losses and heat generation.
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High Reliability: P5/P4 precision reduces component wear, extending the compressor’s service interval.
About Us
NINGBO SANYA BEARING CO., LTD.
Ningbo Sanya Bearing Co., Ltd. is a professional China Compressor Bearings Manufacturers and Custom Compressor Bearings Suppliers.And it established in 1994 stands right at the prime location of the Yangtze River Delta. Specialized in the production of high-quality deep groove ball bearings and insert bearings. It has emerged as a modern company integrating product development, design, manufacturing, sales and service. It can produce bearings with an inner diameter of 3mm to 100mm and customize various non-standard Custom Series 6000 Two Contact Seals Deep Groove Ball Bearing with highly-automated equipment, stable quality, and complete testing methods ensuring the quality of its products. With the vigorous development of the foreign trade department, our business in bearing production and sales in 2018 far exceeded 20 million US dollars, and the products were sold in more than 50 countries and regions.
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