Precision Bearings Precision Engineered. Globally Supplied.
P0-P4 precision grades. Z2-Z4 noise grades. Chrome steel construction. Serving global distributors, machinery manufacturers, and OEM brand owners with factory-direct pricing and 1-piece MOQ.
19+
Years Factory
P0-P4
Precision Grade
ISO 9001
Certified
1 pc MOQ
No Min Order
By Precision Grade
P0 · P4 · P5 · P6All Products
4835 products found
Double Row Cylindrical Roller Bearing NN3012-K-TN-Sp W33 for CNC Machine Tools with Low Noise
Ensure smooth, precise operation of your CNC machine tools with the Double Row Cylindrical Roller Bearing NN3012-K-TN-Sp W33, engineered to minimize noise and maximize stability during high-speed machining. Crafted from premium bearing steel with 60-64 HRC hardness, this bearing delivers consistent performance under heavy loads, reducing downtime and enhancing your equipment’s lifespan. Low noise Z2V2 vibration grade ensures a quieter workspace, ideal for precision manufacturing environments Separated design with brass or steel cage allows easy installation and maintenance, saving valuable setup time Available in clearance grades C0-C5 to accommodate specific machining tolerances, ensuring perfect alignment with your tool’s requirements Backed by Saifan’s strict quality control and ISO-certified production, this bearing is a reliable choice for industrial machinery manufacturers seeking long-term operational efficiency.
Double Row Cylindrical Roller Bearing NUP314-EC P for Pneumatic Mechanical Equipment
Ensure smooth, high-precision rotation for your pneumatic mechanical equipment with the Double Row Cylindrical Roller Bearing NUP314-EC P. Engineered to minimize downtime and enhance operational stability, this bearing handles axial loads with exceptional durability, thanks to its separated design and 60-64 HRC hardness—critical for maintaining performance in demanding industrial environments.Precision-crafted from high-grade bearing steel with brass or steel cages, ensuring long service life even under continuous useAvailable clearance options (C0-C5) and vibration grades (Z1V1-Z3V3) allow customization to match your specific machinery requirementsBacked by Saifan’s strict quality control and 12-month warranty, delivering reliable performance you can trust for your pneumatic systems
Double Row Cylindrical Roller Bearing Nu2230 Ec M High Precision for Industrial Machinery
Ensure smooth, high-precision rotation in your industrial machinery with the Double Row Cylindrical Roller Bearing NU2230 EC M. Engineered to deliver exceptional stability under heavy loads, this bearing minimizes downtime and enhances equipment lifespan, addressing the critical need for reliable performance in demanding industrial environments. Precision-grade design (P0-P4 available) ensures consistent operation with Z2-Z3 noise control, ideal for machine tools and conveyor systemsHigh-quality bearing steel construction (60-64 HRC hardness) and separable brass/steel cage allow for easy maintenance and extended service lifeAvailable in clearance grades C0-C5 to accommodate specific application requirements, from general industrial use to high-precision equipment
Double Row Cylindrical Roller Bearing NUP309 EC J C3 for Blower Fan Equipment
Keep your blower fan equipment running at peak efficiency with the Double Row Cylindrical Roller Bearing NUP309 EC J C3 — engineered to minimize downtime and maximize rotational stability. This precision bearing delivers consistent performance under heavy loads, thanks to its C3 clearance design that accommodates thermal expansion, ensuring smooth operation even in demanding industrial environments.Constructed with high-grade bearing steel (60-64 HRC hardness) for extended service life, reducing the need for frequent replacementsSeparated brass or steel cage design enhances heat dissipation and load distribution, critical for continuous fan operationComplies with industry standards to fit seamlessly into blower systems, backed by Saifan’s 12-month warranty for added peace of mind
Double Row Cylindrical Roller Bearing NUP311 EC N M/C3 for Air Compressor High Precision
Ensure smooth, high-precision operation for your air compressor with the Double Row Cylindrical Roller Bearing NUP311 EC N M/C3, engineered to minimize vibration and extend equipment lifespan. Crafted from premium bearing steel with a hardness of 60-64 HRC, this bearing delivers consistent performance under heavy loads, addressing the need for reliable rotation in industrial settings.Optimized C3 clearance and brass/steel cage options reduce friction, keeping your compressor running cooler and more efficientlyNon-aligning design with separated inner ring allows for easy installation and maintenance, saving valuable downtimeMeets strict precision standards to ensure compatibility with air compressor systems, delivering the stability your machinery demands
Double Row Cylindrical Roller Bearing Nu308-Ec J for Industrial Machinery High Precision
Ensure seamless industrial machinery performance with the Double Row Cylindrical Roller Bearing Nu308-Ec J, engineered to deliver high precision and stability in heavy-duty operations. Its separated design allows for easy mounting and maintenance, reducing downtime and keeping your equipment running at peak efficiency. Crafted from premium bearing steel with 60-64 HRC hardness, ensuring long service life even under rigorous workloads Features C0/C2/C3/C4/C5 clearance options to match specific machinery requirements, optimizing rotational accuracy Equipped with brass or steel cages for reliable load distribution, minimizing vibration (Z1V1-Z3V3) and noise in critical applications
Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Industrial Machinery
Ensure smooth, high-precision rotation in your industrial machinery with the Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33, engineered to deliver reliable performance even under heavy loads. Crafted from premium bearing steel with a hardness of 60-64 HRC, this bearing minimizes downtime by maintaining stable operation across demanding industrial applications.Designed with separated inner/outer rings and brass/steel cage options for easy installation and maintenance, adapting seamlessly to your equipment’s specific needsFeatures Z1V1-Z3V3 vibration grades to reduce noise and extend service life, addressing the critical need for consistent performance in high-stakes machineryAvailable with clearance options (C0-C5) to optimize fit for precision-critical systems, backed by Saifan’s ISO 9001-certified quality control for long-term reliability
Double Row Cylindrical Roller Bearing NU203-NU205 EC P for Industrial Machinery High Precision
Ensure smooth, precise rotation for your industrial machinery with our Double Row Cylindrical Roller Bearing NU203-NU205 EC P. Engineered to deliver exceptional load capacity and reduced vibration (Z1V1-Z3V3 grades), this high precision cylindrical roller bearing minimizes downtime and extends equipment lifespan in demanding applications like machine tools and textile machinery.Hardened to 60-64 HRC for superior wear resistance, paired with brass or steel cages for reliable performance under heavy loadsSeparated design allows easy mounting and maintenance, while C0-C5 clearance options ensure optimal fit for your specific operating conditionsBacked by Saifan’s ISO 9001-certified quality control and 12-month warranty, ensuring consistent performance you can trust
Double Row Cylindrical Roller Bearing NNU4944 B/Sp C3 W33 for Industrial Machinery High Precision
Ensure smooth, high-precision rotation for your industrial machinery with the Double Row Cylindrical Roller Bearing NNU4944 B/Sp C3 W33—engineered to minimize downtime and enhance operational stability. Crafted from premium bearing steel with 60-64 HRC hardness, this bearing delivers exceptional load capacity and wear resistance, making it ideal for heavy-duty applications in machine tools, reducers, and printing equipment.Precision-grade performance with C3 clearance and Z1V1-Z3V3 vibration control ensures consistent operation even under demanding conditionsSeparated design with brass or steel cage allows for easy installation and maintenance, reducing assembly time and costsComplies with international standards, backed by ISO 9001:2015 quality certification for reliable, long-term performance
Double Row Cylindrical Roller Bearing NU2205-Ec P/C3 for Industrial Machinery with C3 Clearance
Ensure smooth, high-precision rotation in your industrial machinery with the Double Row Cylindrical Roller Bearing NU2205-Ec P/C3. Designed to handle heavy radial loads while maintaining stable performance, this C3 clearance bearing reduces vibration and extends equipment lifespan—perfect for manufacturers seeking reliable motion in demanding applications. Precision-engineered with high-grade bearing steel (60-64 HRC hardness) and separated inner/outer rings for easy installation and maintenanceZ2V2 vibration grade ensures quiet operation, ideal for machinery where noise reduction is criticalCompatible with industrial equipment requiring medium loads and precise axial alignment, backed by Saifan Bearings' ISO 9001-certified quality control
Double Row Cylindrical Roller Bearing Nu2217 Ec J/C3 with Fast Shipment for Industrial Machinery
Keep your industrial machinery running smoothly with the Double Row Cylindrical Roller Bearing Nu2217 Ec J/C3—engineered to deliver reliable performance under heavy loads and reduce unexpected downtime. Crafted from high-grade bearing steel with a precision hardness of 60-64 HRC, this bearing ensures stable rotation and extended service life, making it ideal for machine tools, reducers, and other industrial equipment where durability matters most.Separated design allows easy installation and maintenance, saving valuable time during assemblyC3 clearance rating provides optimal heat dissipation, preventing overheating in continuous operationFast shipment ensures you get the bearings you need within 5-15 working days, keeping your production on scheduleBacked by Saifan’s strict quality control and 12-month warranty, so you can spin with confidence
Double Row Cylindrical Roller Bearing NUP2209-Ec P for Construction Machinery Heavy Load Applications
Boost your construction machinery's heavy load performance with the Double Row Cylindrical Roller Bearing NUP2209-Ec P, engineered to deliver reliable rotation even under extreme stress. Crafted from high-grade bearing steel with 60-64 HRC hardness, this bearing minimizes downtime by maintaining precision and durability in harsh working conditions.Separated design allows easy installation and maintenance, reducing assembly time for your equipmentAvailable clearance options (C0/C2/C3/C4/C5) ensure optimal fit for specific heavy load applicationsZ1V1-Z3V3 vibration grades guarantee smooth operation, extending the lifespan of your machinery components
Precision Craftsmanship.
Enduring Performance.
Autonomous factory manufacturing with full-process quality control. Every bearing is engineered to exceed international standards for load capacity, noise grade, and service life.
Micro-Level Precision
Advanced CNC grinding to ABMA/DIN standards. Dimensional accuracy measured at micron level for consistent performance in high-speed applications.
Premium Raw Materials
High-grade GCr15 chrome steel with strict incoming inspection. Superior hardness and wear resistance ensures 3× longer service life than standard bearings.
Certified Quality System
ISO 9001:2015 & ISO 14001 certified facility. Professional QC teams conduct 100% dimensional, noise, and vibration testing before shipment.
Full Custom Production
From R&D to branded packaging. Support custom dimensions, seals, lubrication, and private labeling. 1 pc MOQ for standard, bulk orders in 5-15 days.
±0.001mm
Dimensional Tolerance
≤55 dB
Noise Level (Z4)
180°C
Max Operating Temp
50,000h
Design Service Life
Engineered for Every Industry
From renewable energy to heavy metallurgy -- our bearings are trusted across the most demanding industrial environments worldwide.
Renewable Energy
Wind & solar power systems
Mineral Processing
Mining & crushing equipment
Marine & Offshore
Corrosion-resistant solutions
Steel & Metallurgy
High-temp heavy-load bearings
Wind Energy
Turbine main shaft bearings
Pulp & Paper
Wet environment performance
Medical & Lab
Ultra-low noise precision
Heavy Machinery
Maximum load capacity
Request Free Sample
Test before you commit. We provide free bearing samples (buyer pays freight). Ready in 3-5 business days. No minimum order required.
- Free sample (freight collect)
- 3-5 day dispatch
- Full spec datasheet included
- No MOQ for samples
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For distributors, brand owners, and machinery manufacturers. Share your requirements and receive a competitive factory-direct quotation within 24 hours.
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Full FCL Support
20GP / 40HQ containers
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OEM Branding
Custom packaging & labels
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5-15 Day Lead
Bulk production timeline
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