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
22205/20E Spherical Roller Bearing 18mm Width for Industrial Machinery
Ensure smooth, reliable rotation in your industrial machinery with the 22205/20E Spherical Roller Bearing, engineered to deliver consistent performance under heavy loads and variable alignments. Its 18mm width provides optimal load distribution, reducing wear on critical components and extending equipment uptime—perfect for manufacturers seeking to minimize maintenance interruptions.Precision-grade construction (P0-P4 available) ensures low vibration and noise (Z2-Z4 grades), ideal for high-speed industrial applicationsHigh-grade chrome steel material resists corrosion and fatigue, maintaining stability even in harsh operating environmentsDirect replacement for OEM specifications, compatible with textile machinery, printing equipment, and reducers—backed by Saifan’s 12-month warranty for peace of mind
Spherical Roller Bearing 21320E 47mm Width for Industrial Machinery Applications
Ensure smooth, reliable rotation in your industrial machinery with the Spherical Roller Bearing 21320E, engineered to deliver consistent performance even under heavy loads and misalignment. This 47mm width bearing minimizes downtime by maintaining precision through P0-P4 grade manufacturing, addressing the critical need for stable operation in high-stress applications like machine tools and textile equipment.21320E model with 47mm width ensures perfect fit for industrial machinery, reducing installation hassle and improving component compatibilityAdopts high-grade chrome steel construction for extended service life, directly tackling the challenge of frequent replacements in demanding work environments
Spherical Roller Bearing 21320E 47mm Width for Heavy Machinery Applications
Ensure smooth, reliable operation for your heavy machinery with the Spherical Roller Bearing 21320E, engineered to handle high radial and axial loads with minimal maintenance. This 47mm width bearing delivers exceptional durability in demanding industrial environments, reducing downtime and keeping your equipment running at peak efficiency.Precision-grade construction ensures consistent performance under heavy loads, addressing common wear issues in critical machinery componentsOptimized internal geometry minimizes friction and heat buildup, extending service life for long-term cost savingsDirect replacement for OEM specifications, ensuring seamless integration with existing systems
Spherical Roller Bearings 21319EK High Precision for Industrial Machinery Applications
Ensure smooth, high-precision rotation in your industrial machinery with our Spherical Roller Bearings 21319EK, engineered to minimize downtime and enhance operational reliability. Crafted with P0-P4 precision grade and Z2-Z3-Z4 noise control, these bearings deliver consistent performance even under heavy loads, addressing the critical need for stable, long-lasting components in demanding industrial environments.Precision width of 45mm ensures perfect fit for industrial machinery applications, reducing installation errors and maintenance hasslesHigh-grade chrome steel construction guarantees extended service life, making it ideal for machine tools, textile equipment, and other industrial systemsBacked by Saifan's ISO 9001:2015 quality certification and 12-month warranty, providing peace of mind for your production line
Spherical Roller Bearings 21319EK High Precision for Industrial Machinery 45mm Width
Ensure smooth, high-precision rotation for your industrial machinery with Spherical Roller Bearings 21319EK, engineered to minimize downtime and enhance operational stability. This 45mm width bearing delivers reliable performance under heavy loads, addressing the critical need for consistent motion in demanding industrial environments.Precision-grade construction ensures optimal alignment and reduced vibration, extending machinery service life45mm width design provides enhanced load-bearing capacity for industrial applications like machine tools and reducersBacked by Saifan's ISO 9001:2015 quality certification and 12-month warranty for long-term peace of mind
High Precision Spherical Roller Bearing 21319E for Industrial Machinery, 45mm Width
Ensure smooth, high-precision rotation for your industrial machinery with the High Precision Spherical Roller Bearing 21319E, engineered to deliver consistent performance even under heavy loads. This 45mm width bearing minimizes vibration and extends equipment lifespan, addressing the critical need for reliable motion in demanding industrial environments.Model 21319E design with optimized internal clearance for enhanced load distribution, a detail that ensures compatibility with high-torque applications like reducers and conveyorsManufactured to P0-P4 precision standards using premium chrome steel, ensuring stable operation and reducing costly downtimeBacked by our 12-month warranty and technical support team, providing peace of mind for your production line
High Precision Spherical Roller Bearing 21319E CC/W33 MB for Industrial Machinery
Ensure smooth, long-lasting rotation for your industrial machinery with the High Precision Spherical Roller Bearing 21319E CC/W33 MB—engineered to minimize downtime and maximize productivity in heavy-duty applications. This Spherical Roller Bearing delivers exceptional load capacity and alignment flexibility, addressing the critical need for reliable performance in demanding industrial environments.Precision-grade construction (P0-P4 available) ensures consistent operation with Z2-Z4 noise reduction for quieter machinery45mm width and CC/W33 MB design optimize radial and axial load handling, ideal for textile machines, reducers, and printing equipmentBacked by Saifan’s 12-month warranty and ISO 9001:2015 quality certification, offering peace of mind for your production line
Spherical Roller Bearing 21317EK with Steel/Brass Cage for Auto Parts, ISO Certified
Ensure smooth, reliable rotation in auto parts with this Spherical Roller Bearing 21317EK, engineered to reduce downtime and enhance equipment longevity. Crafted with a precision steel or brass cage, it delivers exceptional load capacity and alignment flexibility—critical for handling axial and radial stresses in automotive applications.ISO certified for consistent quality, meeting strict international standards to minimize performance variability41mm width design optimizes fit for compact auto assemblies, ensuring seamless integration with existing componentsDurable construction resists wear and temperature fluctuations, ideal for demanding under-the-hood environments
Self-Aligning Roller Bearing 21317EK with Steel/Brass Cage for Auto Parts, Precision Grade P0-P4
Ensure smooth, reliable rotation in your auto parts with the Self-Aligning Roller Bearing 21317EK, engineered to deliver precision from P0 to P4 grade for consistent performance under varying loads. Its steel or brass cage options provide durability tailored to your application, reducing maintenance needs and extending service life in automotive systems.41mm width design ensures optimal fit in tight mechanical assemblies, minimizing installation adjustmentsSelf-aligning capability compensates for shaft misalignment, preventing premature wear and ensuring stable operationBacked by ISO 9001:2015 quality standards, this bearing meets rigorous industry demands for reliability and longevity
21317E Spherical Roller Bearings for Truck Wheel Hubs High Precision P0-P4 Grade
Ensure smooth, reliable rotation for your truck wheel hubs with 21317E spherical roller bearings—engineered to deliver high precision (P0-P4 grade) and long service life even under heavy loads. These bearings minimize downtime by reducing vibration and noise, addressing the critical need for consistent performance in demanding transportation environments.Precision-machined with a width of 41mm, perfectly suited for truck wheel hub assemblies requiring exact fit and load distributionAdopts advanced manufacturing technology to maintain stable operation across temperature variations and rugged road conditionsBacked by our ISO 9001:2015 quality certification and 12-month warranty, ensuring you get a durable solution that keeps your fleet moving
21317E Truck Wheel Hub Bearings High Precision Angular Contact Tapered Roller Bearings
Ensure smooth, reliable truck performance with 21317E truck wheel hub bearings—engineered to reduce downtime and boost operational efficiency. These high precision angular contact tapered roller bearings deliver exceptional load capacity and wear resistance, making them ideal for heavy-duty truck applications.Precision-grade design (P0-P4 available) ensures minimal vibration and extended service life, addressing the need for consistent performance in demanding road conditions41mm width specification optimized for secure wheel hub fitment, a critical detail for proper axle alignment and reduced maintenance costsConstructed with high-grade chrome steel to withstand extreme temperatures and heavy loads, providing peace of mind for long-haul operations
21316EK Spherical Roller Bearing 39mm Width for Heavy-Duty Industrial Machinery
Ensure smooth, long-lasting operation for your heavy-duty industrial machinery with the 21316EK Spherical Roller Bearing, engineered to handle extreme loads and reduce downtime in demanding environments. This 39mm width bearing delivers exceptional radial and axial load capacity, making it ideal for applications like conveyor systems, crushers, and large gearboxes where reliability is non-negotiable.Precision-grade construction (P0-P4 available) ensures consistent performance under heavy vibration and variable speedsHigh-grade chrome steel material resists wear and fatigue, extending equipment service life and minimizing maintenance costsDesigned with optimized internal geometry to accommodate misalignment, protecting shafts and housings from premature failure
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
Bulk & FCL Inquiry
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
⏱️
5-15 Day Lead
Bulk production timeline
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Flexible payment terms