Precision bearing manufacturing
Factory Direct · ISO 9001:2015 Certified

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

All Products

4835 products found

Factory Direct · 1 pc MOQ · 3-5 Day Sample
MGW Mini Linear Guide Rail Slider for High Speed Motion – MGW7C MGW9H Linear Block
Unclassified

MGW Mini Linear Guide Rail Slider for High Speed Motion – MGW7C MGW9H Linear Block

Experience smooth, high-speed motion in your precision applications with the MGW Mini Linear Guide Rail Slider, engineered to deliver reliable performance even in demanding industrial environments. This compact solution (MGW7C/MGW9H models) combines low noise operation with long service life, ensuring your machinery runs efficiently without disruptive vibrations or frequent replacements.Alloy construction ensures durability for continuous use, while the high-speed design reduces latency in automated systemsCertified to ISO 9001 standards, guaranteeing consistent quality that meets strict industrial requirementsPerfect for tight spaces where precision matters—ideal for 3D printers, CNC routers, and small-scale automation setups

Insert Bearing UCPH322 High Load Deep Groove Raceway 12x47x31mm for Machinery
Housing Bearings

Insert Bearing UCPH322 High Load Deep Groove Raceway 12x47x31mm for Machinery

Ensure smooth, high-load machinery operation with the UCPH322 Insert Bearing, engineered to deliver reliable performance in industrial applications. Its deep groove raceway design minimizes friction under heavy loads, while the 12x47x31mm precision dimensions ensure a perfect fit for machinery requiring stable rotation and extended service life.Constructed with premium bearing steel for durability, supporting P0-P4 precision grades and Z1V1-Z3V3 vibration levels to meet strict operational standardsFlexible lubrication options (grease or oil) adapt to diverse working conditions, reducing maintenance needs and downtimeBacked by rich stock availability for quick fulfillment, ideal for keeping your production line running without delays

High Load Pillow Block Insert Bearing UCPH319 with P0-P4 Precision for Industrial Machinery
Housing Bearings

High Load Pillow Block Insert Bearing UCPH319 with P0-P4 Precision for Industrial Machinery

Boost industrial machinery reliability with the UCPH319 Pillow Block Insert Bearing, engineered to deliver stable high-load performance and precision from P0 to P4 grades. Its deep groove raceway design ensures smooth rotation under heavy operational stress, addressing common concerns about durability in demanding work environments.Precision-machined bearing steel construction minimizes vibration (Z1V1-Z3V3 grades) for quieter, longer-lasting equipment operationFlexible lubrication options (grease or oil) adapt to diverse industrial setups, supported by our 12-month global warranty

Outer Spherical Pillow Block Bearings UC203 UCP203 High Load Deep Groove for Industrial Machinery
Housing Bearings

Outer Spherical Pillow Block Bearings UC203 UCP203 High Load Deep Groove for Industrial Machinery

Ensure smooth, high-load industrial machinery operation with our Outer Spherical Pillow Block Bearings UC203 UCP203—engineered to minimize downtime and maximize productivity in demanding environments. Crafted from premium bearing steel with a deep groove raceway, these single-row bearings deliver exceptional load capacity and rotational stability, addressing the critical need for reliable performance in heavy-duty applications.Precision ratings from P0 to P4 and vibration grades Z1V1 to Z3V3 ensure quiet, consistent operationFlexible lubrication options (grease or oil) adapt to your specific machinery requirementsRich stock availability means fast delivery, so you can keep production on track without delaysBacked by our 12-month global warranty and expert technical support for total peace of mind

HR30318j Hr30319j Hr30320j Hr30321j Tapered Roller Bearings with Long Life for Industrial Machinery
Truck Bearings

HR30318j Hr30319j Hr30320j Hr30321j Tapered Roller Bearings with Long Life for Industrial Machinery

Ensure smooth, long-lasting industrial machinery operation with our HR30318j, HR30319j, HR30320j, HR30321j Tapered Roller Bearings—engineered to minimize downtime while delivering high-speed performance. Crafted with precision grades from P0 to P4 and vibration levels up to Z3V3, these bearings reduce noise in heavy-duty equipment, addressing the critical need for reliable rotation in manufacturing environments.Precision dimensions (e.g., 105*225*53.50mm for HR30321J) ensure seamless integration into industrial machinery, from conveyors to pressesLong-life design with premium materials extends maintenance intervals, cutting operational costs without compromising on durabilityFlexible OEM/ODM support available to match custom specifications, backed by our ISO 9001:2015 certified quality control for consistent performance

Deep Groove Ball Bearing 6808 Zz 2RS P0-P4 Precision for Industrial Machinery
Ball Bearing

Deep Groove Ball Bearing 6808 Zz 2RS P0-P4 Precision for Industrial Machinery

Ensure smooth, long-lasting operation for your industrial machinery with our Deep Groove Ball Bearing 6808 Zz 2RS, engineered to deliver P0-P4 precision and reliable performance under demanding conditions. This bearing minimizes downtime with its Zz/2RS sealed design, keeping contaminants out and lubrication in—ideal for high-vibration environments where maintenance access is limited.Precision-grade options (P0-P4) ensure consistent rotation speeds and reduced noise (Z1V1-Z3V3) for sensitive equipmentSingle-row radial load capacity handles heavy-duty applications in machine tools, conveyors, and packaging machineryMade from high-grade bearing steel for extended service life, backed by our ISO 9001:2015 quality assuranceFlexible customization available for housing, lubrication, and packaging to match your exact specifications

Auto Wheel Hub Bearings DAC34620037 2RS 37x72x37mm P0-P4 Precision for Toyota Volkswagen Ford
Automotive Bearing

Auto Wheel Hub Bearings DAC34620037 2RS 37x72x37mm P0-P4 Precision for Toyota Volkswagen Ford

Ensure smooth, reliable rotation for your Toyota, Volkswagen, or Ford with Auto Wheel Hub Bearings designed to deliver precision performance mile after mile. This DAC34620037 model, crafted to 37x72x37mm dimensions with 2RS sealing, minimizes noise and extends service life in demanding automotive conditions.P0-P4 precision grading ensures consistent fit and reduced vibration, addressing common issues with uneven wear and premature failureDouble-row radial design handles both radial and axial loads, a critical feature for wheel hub applications that experience complex stressReady-to-install with in-stock availability, supporting quick turnaround for maintenance or production needs

Spherical Roller Bearing 22224 CC CA W33 High Capacity for Industrial Machinery
Roller Bearing

Spherical Roller Bearing 22224 CC CA W33 High Capacity for Industrial Machinery

Ensure smooth, high-capacity industrial machinery operation with the Spherical Roller Bearing 22224 CC CA W33, engineered to handle heavy radial loads and misalignment in demanding equipment. This self-aligning roller bearing (100x215x47mm) minimizes downtime by maintaining precision even under variable stress, making it ideal for industrial machinery that requires reliable performance.High-grade bearing steel construction ensures long service life, addressing the need for durable components in continuous operationAvailable precision grades from P0 to P2 and clearance options (C0/C3/C4) allow customization to specific machinery requirementsSupports both grease and oil lubrication for versatile integration into existing maintenance protocols

Self-Aligning Roller Bearing 22307EAE4 22308-22311EAE4 P0-P4 Precision for Industrial Machinery
Roller Bearing

Self-Aligning Roller Bearing 22307EAE4 22308-22311EAE4 P0-P4 Precision for Industrial Machinery

Ensure smooth, reliable rotation for your industrial machinery with our Self-Aligning Roller Bearing 22307EAE4 22308-22311EAE4 P0-P4 Precision for Industrial Machinery. These double-row roller bearings automatically compensate for shaft misalignment, reducing wear and extending equipment lifespan—perfect for high-load applications like machine tools and textile machinery.P0-P4 precision grades and C0/C3/C4 clearance options ensure optimal performance under varying operating conditionsConstructed with high-grade bearing steel for exceptional durability, handling radial loads with minimal vibrationAvailable in sizes 22307EAE4 (35*80*21 mm) through 22311EAE4, with OEM/ODM customization to match your exact specifications

Self Aligning Ball Bearings 2309TNI 95x170x32mm Low-Noise for Motors Automobiles
Ball Bearing

Self Aligning Ball Bearings 2309TNI 95x170x32mm Low-Noise for Motors Automobiles

Ensure smooth, quiet operation for motors and automobiles with our Self Aligning Ball Bearings 2309TNI 95x170x32mm, designed to minimize vibration and extend equipment lifespan. Crafted from high-grade bearing steel with precision ratings up to P4 and noise levels optimized for Z2/Z3/Z4 standards, this double-row radial bearing adapts to misalignment (60° contact angle) while maintaining stable performance under heavy loads.Steel or brass cage options for durability in automotive and industrial motor applicationsSupports OEM/ODM customization to match specific machinery requirements10-15 day delivery ensures minimal downtime for production linesComplies with ISO standards for reliable rotation you can trust

Cylindrical Roller Thrust Bearing 25x52x15mm P0-P4 Precision for Industrial Machinery
Roller Bearing

Cylindrical Roller Thrust Bearing 25x52x15mm P0-P4 Precision for Industrial Machinery

Ensure smooth, precision-driven operation in your industrial machinery with this Cylindrical Roller Thrust Bearing, engineered to deliver reliable performance under heavy axial loads. The 25x52x15mm dimension and P0-P4 precision grades minimize vibration and extend equipment lifespan, addressing the critical need for consistent motion in high-demand applications like machine tools and reducers.Constructed with high-grade bearing steel for exceptional wear resistance, ensuring stable performance even in continuous operationOpen seal design allows for flexible lubrication (oil, grease, or dry) to adapt to your specific machinery requirementsSingle-row separated structure enables easy installation and maintenance, reducing downtime for your production line

Needle Roller Bearing RNA4906 35x47x17mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearings

Needle Roller Bearing RNA4906 35x47x17mm P0-P4 Precision for Industrial Machinery

Ensure smooth, long-lasting rotation in your industrial machinery with the Needle Roller Bearing RNA4906 35x47x17mm—engineered to deliver P0-P4 precision for reliable performance even under heavy loads. Crafted from high-grade bearing steel and designed as a radial bearing without an inner ring, this component minimizes friction and maximizes durability, reducing costly downtime and maintenance needs.Precision ratings from P0 to P4 ensure compatibility with demanding machinery applications, meeting ISO industrial standards for consistent qualityGrease or oil lubrication flexibility allows adaptation to specific operating conditions, enhancing versatility in installation3-7 day delivery ensures quick turnaround to keep your production on schedule, backed by our 12-month warranty for added peace of mind

Why Saifan Bearing

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.

P0-P4 Grade

Micro-Level Precision

Advanced CNC grinding to ABMA/DIN standards. Dimensional accuracy measured at micron level for consistent performance in high-speed applications.

Z2-Z4 Noise
Chrome Steel

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.

3× Longer Life
ISO 9001:2015

Certified Quality System

ISO 9001:2015 & ISO 14001 certified facility. Professional QC teams conduct 100% dimensional, noise, and vibration testing before shipment.

12-Month Warranty
OEM / ODM

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.

3-5 Day Sample

±0.001mm

Dimensional Tolerance

≤55 dB

Noise Level (Z4)

180°C

Max Operating Temp

50,000h

Design Service Life

Industry Applications

Engineered for Every Industry

From renewable energy to heavy metallurgy -- our bearings are trusted across the most demanding industrial environments worldwide.

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Renewable Energy bearing application

Renewable Energy

Wind & solar power systems

Mineral Processing bearing application

Mineral Processing

Mining & crushing equipment

Marine & Offshore bearing application

Marine & Offshore

Corrosion-resistant solutions

Steel & Metallurgy bearing application

Steel & Metallurgy

High-temp heavy-load bearings

Wind Energy bearing application

Wind Energy

Turbine main shaft bearings

Pulp & Paper bearing application

Pulp & Paper

Wet environment performance

Medical & Lab bearing application

Medical & Lab

Ultra-low noise precision

Heavy Machinery bearing application

Heavy Machinery

Maximum load capacity

Quality Verification

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
Trade / Wholesale

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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T/T · L/C · Alibaba

Flexible payment terms