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
Self-Aligning Roller Bearing 24140CDE4 24144CDE4 P0-P4 Precision for Industrial Machinery
Ensure smooth, reliable rotation in your industrial machinery with our high-performance Self-Aligning Roller Bearing—engineered to minimize downtime and maximize operational efficiency. Available in models 24140CDE4 and 24144CDE4, this double-row roller bearing delivers precision from P0 to P4 grades, adapting to misalignment and heavy radial loads with ease.Constructed with premium bearing steel for extended service life, even in demanding industrial environmentsFeatures C0/C3/C4 clearance options to optimize performance for specific machinery requirementsBacked by our ISO 9001:2015 certified quality control and 12-month warranty for peace of mind
Needle Roller Bearing RNA4922 RNA4924 RNA4926 P0-P4 Precision for Industrial Machinery
Ensure smooth, precise rotation in your industrial machinery with our Needle Roller Bearing RNA49 Series, engineered to deliver reliable performance across P0-P4 precision grades. These RNA4922, RNA4924, and RNA4926 bearings eliminate downtime risks with their robust bearing steel construction and radial load optimization, making them ideal for heavy-duty applications like machine tools and textile equipment.Designed without inner/outer rings for space-saving integration in compact mechanical assembliesGrease or oil lubrication flexibility adapts to your maintenance routine, ensuring long service lifePrecision-machined to 125*150*40 mm specifications (RNA4922) with C0/C3/C4 clearance options for tailored performanceBacked by our ISO 9001-certified quality control and 3-7 day delivery, so you keep production on track
Cylindrical Roller Bearing Nj416em 80x200x48mm P0-P4 Precision for Industrial Machinery
Ensure smooth, high-precision rotation in your industrial machinery with the Cylindrical Roller Bearing NJ416EM, designed to deliver reliable performance even under heavy radial loads. This 80x200x48mm bearing features P0-P4 precision grades, making it ideal for machine tools, reducers, and printing equipment where minimal vibration and extended service life are critical.Separated inner and outer rings allow easy installation and maintenance, reducing downtime for your production lineConstructed with high-grade bearing steel to withstand rigorous industrial conditions, ensuring consistent operation and reducing replacement frequencyOpen design accommodates versatile lubrication options (oil, grease, dry) to match your specific machinery requirements
Tapered Roller Bearing HR30228J HR30230J HR30232J HR30234J for Industrial Machinery High Speed Low Noise
Keep your industrial machinery running smoothly with our high-performance Tapered Roller Bearing series—HR30228J, HR30230J, HR30232J, and HR30234J. Engineered for high-speed operation and low noise, these bearings deliver consistent precision (P0-P4 grades) and extended service life, ensuring minimal downtime and reliable performance in demanding applications.Precision-crafted with Z1V1-Z3V3 vibration control to reduce operational noise and enhance stabilityAvailable in critical dimensions like 170*310*57mm (HR30234J) to fit industrial machinery specificationsBacked by rich stock availability for fast 3-5 day sample delivery and flexible bulk order fulfillmentSupports OEM/ODM customization to match your unique equipment requirements, from size adjustments to packaging
High Precision Cylindrical Roller Bearing NUP2319EM for Industrial Machinery, 95x200x67mm P0-P4 Grade
Ensure smooth, high-precision rotation in industrial machinery with our High Precision Cylindrical Roller Bearing NUP2319EM, designed to minimize downtime and enhance operational efficiency. This radial bearing, sized 95x200x67mm with P0-P4 precision grades, delivers reliable performance under heavy loads, making it ideal for machine tools, reducers, and printing equipment.Separated structure allows easy mounting and maintenance, saving valuable setup time for your production lineGrease or oil lubrication flexibility adapts to diverse industrial environments, ensuring consistent performance even in demanding conditionsManufactured with premium bearing steel and strict quality control, meeting ISO standards for long service life and stable rotation
High Performance NSK 28bwd03A Wheel Hub Bearing for Automotive Applications 25x52x42mm
Ensure smooth, reliable rotation for your automotive applications with the High Performance NSK 28bwd03A Wheel Hub Bearing, engineered to deliver long life and low noise even under demanding conditions. This 25x52x42mm double-row radial bearing maintains precise alignment, reducing vibration and extending the service life of your vehicle’s wheel assembly—ideal for those prioritizing durability in critical components.Unseparated design ensures easy installation and consistent performance, while bearing steel construction guarantees resilience against heavy loadsAvailable in precision grades P0-P4 and vibration levels Z1V1-Z3V3 to match your specific application needs, backed by Saifan’s strict quality control and 12-month warranty
Deep Groove Ball Bearing 639/6-Z 639/6-2Z 6x15x5mm High Precision for Industrial Machinery
Ensure smooth, precise rotation in your industrial machinery with the Deep Groove Ball Bearing 639/6-Z and 639/6-2Z models—engineered to deliver consistent performance under demanding conditions. These 6x15x5mm high-precision bearings minimize vibration and extend equipment lifespan, solving common issues with wear and operational noise in critical applications.Single-row radial design with unseparated construction ensures reliable load distribution, ideal for machine tools, conveyors, and precision gearboxesPremium bearing steel material meets ISO standards for durability, backed by Saifan’s strict quality control and 12-month warrantyFlexible order options (1pc MOQ for standard bearings) and fast 3-5 day sample delivery make it easy to test compatibility before full deployment
UC202 Insert Bearing Pillow Block High Load Deep Groove Raceway 15x47x31mm
Ensure smooth, heavy-duty rotation in your machinery with the UC202 Insert Bearing—designed to handle high loads while maintaining precision in every turn. This pillow block bearing features a deep groove raceway that minimizes friction, reducing wear and extending equipment lifespan, even in demanding industrial environments.15x47x31mm dimensions with P0-P4 precision ratings for exacting applicationsSingle-row design with bearing steel construction ensures reliable performance under stressGrease or oil lubrication flexibility adapts to your maintenance routineBacked by our 12-month warranty and responsive technical support for peace of mind
Deep Groove Ball Bearing 6004 6204 6403 – ISO Certified for Industrial Machinery
Ensure smooth, reliable rotation in your industrial machinery with our Deep Groove Ball Bearing 6004 6204 6403—engineered to deliver consistent performance even under demanding conditions. These ISO-certified bearings minimize downtime by maintaining precise alignment and reducing friction, thanks to high-grade chrome steel construction and strict quality control that meets global standards.Precision-grade design (P0-P4) ensures compatibility with machine tools, textile equipment, and conveyor systems, with noise levels controlled to Z2-Z4 standards for quiet operationVersatile lubrication options (grease or oil) adapt to your specific application needs, while the 17*62*17mm specification fits common industrial shaft configurations seamlesslyBacked by a 12-month warranty and our technical team’s expert support, these bearings offer the durability and peace of mind to keep your production line running efficiently
Wheel Hub Bearing DAC38700037 for Hyundai 51720-1c000 KIA 51720-02000 Double Row Auto Ball Bearing
Ensure smooth, reliable rotation for your Hyundai or KIA with the Wheel Hub Bearing DAC38700037, engineered to eliminate annoying vibrations and extend wheel assembly lifespan. This double row ball bearing (38*70*37mm) directly replaces OEM part numbers 51720-1c000 (Hyundai) and 51720-02000 (KIA), ensuring perfect fit and hassle-free installation for automotive repair shops and DIY enthusiasts alike.Precision-grade P0/P6/P5 construction with Z1V1-Z3V3 vibration control keeps your vehicle running quietly even at high speedsUnseparated design and high-quality bearing steel deliver exceptional radial load capacity, critical for withstanding daily driving stressesBacked by Saifan’s 12-month warranty and ISO 9001-certified manufacturing, so you can trust consistent performance mile after mile
30216 Tapered Roller Bearing 80x140x26mm P0-P4 Precision for Industrial Machinery
Ensure smooth, precise rotation in your industrial machinery with the 30216 Tapered Roller Bearing, engineered to deliver consistent performance even under heavy loads. This 80x140x26mm bearing minimizes downtime by maintaining P0-P4 precision grade standards, making it ideal for machinery where reliability directly impacts productivity.Grease or oil lubrication flexibility adapts to your maintenance routine, ensuring long service life in diverse operating conditionsZ1V1-Z3V3 vibration control reduces noise and wear, protecting sensitive equipment components during continuous operationBacked by our ISO-certified manufacturing process, this bearing meets the strict tolerance demands of industrial applications—from conveyor systems to precision lathes
Linear Guide Rail Slide Runner Block Bearing R165332320 for Automobile Mining Machinery
Ensure smooth, precise motion in your automobile or mining machinery with the Linear Guide Rail Bearing R165332320, designed to reduce downtime and enhance operational reliability. Crafted from high-grade bearing steel and available in precision ratings from P0 to P2, this slide runner block delivers consistent performance under heavy loads—ideal for the demanding conditions of mining and automotive applications.Thrust bearing design with single-row configuration ensures optimal load distribution and long service lifeCompatible with grease or oil lubrication for flexibility in maintenance routinesISO 9001:2008 certified quality meets rigorous industry standards, backed by Saifan’s expertise in precision manufacturing
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
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5-15 Day Lead
Bulk production timeline
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Flexible payment terms