Roller Bearing

Self-Aligning Roller Bearing 21315CAK W33 P0-P4 Precision for Industrial Machinery

SKU: 083de87bf72f In Stock

Ensure smooth, precise rotation in your industrial machinery with the Self-Aligning Roller Bearing 21315CAK W33, engineered to minimize downtime and enhance operational stability. This high-performance bearing handles radial loads with ease while accommodating misalignment, making it ideal for heavy-duty equipment like conveyors, crushers, and gearboxes.

  • P0-P4 precision grades available to meet strict machinery tolerance requirements, ensuring consistent performance even in high-speed applications
  • 75x160x37mm dimensions with C0/C3/C4 clearance options, optimized for seamless integration into existing industrial setups
  • Double-row roller design and bearing steel construction deliver exceptional durability, reducing the need for frequent replacements
  • Backed by Saifan’s ISO 9001-certified quality control and 12-month warranty, providing reliable support for your critical operations
Wholesale Price (FOB)
¥1.20
MOQ: 1 Piece • Bulk discounts available on inquiry
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

Product Specifications

Parameter Details
Model NO. 21315CAK
Precision Rating P0 P6 P5 P4 P2
Clearance C0 C3 C4
Service OEM ODM
Rolling Body Roller Bearings
The Number of Rows Double
Material Bearing Steel
Spherical Aligning Bearings
Load Direction Radial Bearing
Separated Unseparated
Specification 75*160*37 mm
Origin China
HS Code 8482300000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Equipment, Reducers
Auto Parts Wheel Hubs, Transmission Systems
Agricultural Machinery Harvesters, Tractors
Construction Machinery Excavators, Heavy Load Equipment
New Energy Wind Turbines, Photovoltaic Equipment

Minimize Downtime with 21315CAK W33 Self-Aligning Roller Bearing for Industrial Machinery

Industrial operations face constant challenges from unexpected equipment failures—especially when bearings misalign or wear prematurely. Replacing failed components disrupts production schedules, increases maintenance costs, and erodes profitability. Many manufacturers struggle with sourcing bearings that balance precision, load capacity, and quick delivery, often compromising on either quality or lead time.

21315CAK W33 Bearing: Engineered for Reliable Industrial Performance

Our Self-Aligning Roller Bearing 21315CAK W33 addresses these pain points with P0-P4 precision ratings and double-row roller design, ensuring stability even in misaligned shafts common in heavy machinery. As an integrated manufacturer with full R&D and QC labs, we deliver bearings that meet ISO9001 standards, supported by flexible order options—including 1pc MOQ for standard items and 3–5 day sample lead times. This makes us ideal for both emergency repairs and long-term production needs in machine tools, reducers, and conveyor systems.

Optimal Performance in Demanding Industrial Conditions

Designed as a radial bearing with unseparated structure, the 21315CAK W33 excels in applications with heavy radial loads and moderate axial loads. Its self-aligning capability compensates for shaft deflection up to 2 degrees, reducing stress on adjacent components. Whether operating in high-vibration environments like agricultural harvesters or precision-critical settings such as CNC machines, this bearing maintains consistent performance, minimizing the risk of unplanned downtime.

Key Technical Features Driving Performance

The 21315CAK W33’s 75x160x37mm dimensions provide a robust foundation for industrial machinery, while its bearing steel construction ensures durability under continuous use. Precision ratings from P0 (standard) to P4 (high precision) allow customization for specific noise and accuracy requirements—critical for printing equipment and machine tools where vibration control is essential. Clearance options (C0, C3, C4) further tailor the bearing to application needs: C3 and C4 clearances accommodate thermal expansion in high-temperature operations, while C0 suits standard conditions, ensuring optimal load distribution and extending service life.

Why Authentic Bearings Matter for Total Cost of Ownership

Choosing genuine bearings over low-quality alternatives directly impacts your bottom line. Counterfeit bearings often fail prematurely, leading to repeated replacements, unplanned downtime, and potential damage to expensive machinery. Our 21315CAK W33 bearings undergo rigorous testing in ISO14001-certified facilities, ensuring material purity and manufacturing consistency. With a 12-month global warranty and defect replacement policy, we stand behind our products, reducing long-term costs associated with frequent failures and maintenance.

Your Trusted Partner for Bearing Solutions

Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, and Southeast Asia, building a reputation for reliable supply and competitive pricing. Our commitment to quality is backed by full OEM/ODM customization capabilities, allowing us to meet unique industrial requirements. We provide free technical guidance to ensure proper bearing selection and installation, supported by a responsive after-sales team. With bulk delivery times of 5–15 days and multiple payment options (T/T, credit card, Alibaba trade), we streamline the procurement process for businesses of all sizes.

Packaging & Shipping

  • Carton and pallet packaging for secure transport
  • 3–5 day sample lead time for testing and validation
  • 5–15 day bulk delivery for production requirements
  • Multiple logistics options including air and sea freight
  • 1pc MOQ available for emergency replacement needs

Get Your 21315CAK Bearing Today

Don’t let bearing issues slow down your operations. Whether you need a single replacement or bulk order, our 21315CAK W33 Self-Aligning Roller Bearing is ready to ship. Contact us with your application details, and our technical team will ensure the right fit for your machinery—helping you maintain productivity and reduce downtime.

Frequently Asked Questions

Q: Are these bearings genuine and traceable?

A: Yes, we manufacture our bearings in ISO9001 & ISO14001 certified facilities and provide full traceability for all products.

Q: How do I confirm if the 21315CAK is suitable for my equipment?

A: Share your equipment model, load requirements, and operating conditions—our technical team offers free选型 support.

Q: What is the warranty policy?

A: We offer a 12-month global warranty, with free defect replacement or refund for manufacturing issues.

Q: What is the minimum order quantity?

A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-batch needs.

Q: How long does shipping take?

A: Samples ship in 3–5 days, bulk orders in 5–15 days, with flexible logistics options to match your timeline.

Q: Can you provide custom bearings for specific applications?

A: Yes, we offer full OEM/ODM customization, including precision grades, materials, and dimensions.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

Engineering Insights

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