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
21315EK Angular Contact Ball Bearing 37mm Width for Industrial Machinery
Ensure smooth, high-precision rotation for your industrial machinery with the 21315EK angular contact ball bearing, engineered to deliver reliable performance under heavy loads. This 37mm width bearing minimizes vibration and extends equipment lifespan, addressing common wear issues in demanding manufacturing environments.Optimized contact angle design enhances radial and axial load capacity, critical for machine tools and textile machineryPrecision-grade construction ensures consistent operation, reducing unplanned downtime for your production lineBacked by Saifan’s ISO 9001-certified quality control, with flexible order options to meet your specific needs
Spherical Roller Bearing 21315E 37mm Width for Industrial Machinery Applications
Ensure smooth, reliable rotation in your industrial machinery with the Spherical Roller Bearing 21315E, engineered to deliver consistent performance under heavy loads and misalignment. This 37mm width bearing minimizes downtime by maintaining precision through P0-P4 grade manufacturing, making it ideal for machine tools, reducers, and other industrial applications where stability is non-negotiable.Designed with advanced chrome steel construction to withstand rigorous operating conditions, ensuring long service life even in high-vibration environmentsZ2-Z4 noise grade compliance keeps operational sound low, enhancing workplace comfort while meeting international quality standards (ISO, ABMA, DIN)Flexible order options available, including sample requests and bulk production with 5-15 day delivery, supporting your maintenance and production schedules seamlessly
Spherical Roller Bearing 21315E 37mm Width for Industrial Machinery High Load Applications
Ensure smooth, high-load performance in your industrial machinery with the Spherical Roller Bearing 21315E, engineered to handle heavy radial and axial loads while minimizing downtime. This 37mm width bearing delivers exceptional durability for demanding applications like machine tools and conveyor systems, thanks to precision manufacturing that meets ISO standards for consistent rotation.Designed with optimized internal geometry to reduce friction and extend service life, even under variable load conditionsPerfect fit for industrial equipment requiring reliable operation in harsh environments—backed by our 12-month warranty for peace of mindSupports both OEM specifications and custom requirements, ensuring seamless integration with your existing machinery setups
21316EK High-Performance Roller Bearing for Heavy Industrial Machinery Applications
Keep your heavy industrial machinery running smoothly with the 21316EK high-performance roller bearing, engineered to deliver exceptional durability under extreme loads. This robust industrial roller bearing minimizes downtime and ensures consistent operation, even in the most demanding manufacturing environments.Precision-engineered to handle heavy radial and axial loads, reducing wear on critical machinery componentsHigh-grade chrome steel construction guarantees long service life, addressing the need for reliable performance in continuous production cyclesOptimized internal design with enhanced cage stability for smooth rotation and reduced vibration, a must-have for precision-dependent industrial applications
21316ek Roller Bearing 35mm Width for Industrial Heavy Machinery Applications
Ensure smooth, reliable rotation in your industrial heavy machinery with the 21316ek roller bearing—engineered to handle high loads and minimize downtime in demanding applications. This 35mm width bearing delivers consistent performance under heavy stress, making it ideal for equipment that can’t afford unexpected failures.Precision-manufactured with high-grade chrome steel for extended service life, even in harsh operating conditionsOptimized internal design reduces vibration and noise, enhancing overall machinery efficiencyDirect replacement for wear-prone components, ensuring seamless integration with existing industrial setups
21313EK Spherical Roller Bearing 33mm Width for Auto Parts, P0-P4 Precision Grade
Ensure smooth, reliable rotation in auto parts with the 21313EK Spherical Roller Bearing, engineered to deliver consistent performance even under heavy loads. This 33mm width bearing, available in P0-P4 precision grades, minimizes vibration and extends equipment lifespan—critical for reducing maintenance downtime in automotive applications.Optimized for auto parts with self-aligning capabilities to accommodate shaft misalignment, a common challenge in dynamic machineryManufactured to ISO standards using high-grade chrome steel, ensuring durability that meets the rigorous demands of automotive operating conditionsFlexible order options with fast 3-5 day sample delivery, making it easy to test compatibility before full-scale deployment
Spherical Roller Bearing 21313EK 33mm Width for Auto Parts High-Precision
Ensure smooth, high-precision rotation in auto parts with the Spherical Roller Bearing 21313EK, engineered to deliver reliable performance and extended service life. This 33mm width bearing minimizes vibration and noise, addressing the need for consistent operation in demanding automotive applications.Precision-grade construction (P0-P4 available) ensures optimal fit and reduced wear, critical for maintaining machinery efficiency33mm width design supports heavy radial loads while accommodating misalignment, a key advantage for dynamic auto part systemsBacked by ISO 9001:2015 quality certification and a 12-month warranty, providing confidence in long-term reliability
Ball & Roller Bearing Set 21312EK: Deep Groove, Taper, Angular Contact for Industrial Machinery
Ensure smooth, precise rotation in your industrial machinery with the 21312EK bearing set, engineered to reduce downtime and boost operational efficiency. This deep groove, taper, and angular contact roller bearing combination delivers reliable performance across heavy-load applications, from machine tools to conveyor systems.Perfectly sized at 31mm width to fit standard industrial equipment specifications, ensuring seamless integrationAdopts high-grade chrome steel construction for extended service life, addressing the need for durable components in demanding work environmentsBacked by Saifan's rigorous quality control and 12-month warranty, giving you confidence in every turn
Ball & Roller Bearing Set 21312EK for Industrial Machinery Deep Groove Taper Angular Contact Cylindrical
Ensure smooth, long-lasting operation for your industrial machinery with the 21312EK bearing set, engineered to minimize downtime and maximize productivity. This precision-crafted roller bearing set combines deep groove, taper angular contact, and cylindrical designs to handle heavy loads and high speeds, making it ideal for machine tools, textile equipment, and printing machinery.Precision grade P0-P4 and noise grade Z2-Z4 ensure stable performance in critical industrial applications31mm width and robust construction deliver reliable rotation even under demanding工况Backed by ISO 9001:2015 quality certification and a 12-month warranty for peace of mindSupports OEM/ODM customization to match your specific equipment requirements seamlessly
Spherical Roller Bearing 21311EK – SKF NSK Timken Equivalent with 29mm Width for Industrial Machinery
Ensure smooth, long-lasting rotation for your industrial machinery with the Spherical Roller Bearing 21311EK, a reliable equivalent to SKF, NSK, and Timken models. This 29mm width bearing minimizes downtime by handling heavy radial loads and misalignment, making it ideal for tough industrial applications where precision and durability can’t be compromised.Engineered to match P0-P4 precision standards, ensuring consistent performance in demanding machinery29mm width design provides enhanced stability, a critical detail for maintaining alignment in high-torque operationsBacked by our 12-month warranty and technical support, so you can focus on productivity without worrying about component reliability
Spherical Roller Bearing 21311EK – SKF NSK Timken Equivalent for Industrial Machinery
Ensure smooth, reliable rotation for your industrial machinery with the Spherical Roller Bearing 21311EK, a precision-engineered equivalent to SKF, NSK, and Timken models. This 29mm width bearing delivers exceptional load capacity and misalignment tolerance, ideal for heavy-duty applications like conveyors, pumps, and gearboxes where consistent performance under stress is non-negotiable. Drop-in replacement for original equipment specifications, minimizing downtime during maintenance Manufactured to P0-P4 precision grades with Z2-Z4 noise control, ensuring quiet operation in critical environments Backed by our 12-month warranty and technical support team, so you can focus on production without worrying about unexpected failures
Self-Aligning Roller Bearing 21310EAE4 50x110x27mm P0-P4 Precision for Industrial Machinery
Ensure smooth, precise rotation in your industrial machinery with our Self-Aligning Roller Bearing 21310EAE4, engineered to handle misalignment and heavy radial loads effortlessly. This 50x110x27mm bearing delivers P0-P4 precision, reducing vibration and extending equipment lifespan—ideal for machine tools, reducers, and agricultural machinery where reliability under stress is non-negotiable.Double-row roller design with C0/C3/C4 clearance options adapts to dynamic operating conditions, minimizing downtime from alignment issuesHigh-grade bearing steel construction ensures consistent performance, backed by our ISO 9001-certified quality control for peace of mindSupports OEM/ODM customization to match your exact specifications, with flexible MOQ and fast 3-5 day sample delivery to keep your production on track
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.
📦
Full FCL Support
20GP / 40HQ containers
🏷️
OEM Branding
Custom packaging & labels
⏱️
5-15 Day Lead
Bulk production timeline
💳
T/T · L/C · Alibaba
Flexible payment terms