Product Specifications
| Parameter |
Details |
| Model NO. |
21305CDE4, 21305CDKE4, 21305CAE4, 21305CAKE4 |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0, P6, P5, P4, P2 |
| Clearance |
C0, C3, C4 |
| Service |
OEM, ODM |
| Rolling Body |
Roller Bearings |
| The Number of Rows |
Double |
| Outer Dimension |
Large (200-430mm) |
| Material |
Bearing Steel |
| Spherical |
Aligning Bearings |
| Load Direction |
Radial Bearing |
| Separated |
Unseparated |
| Specification |
160*290*80 mm |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| Mining Machinery |
Excavators, Crushers, Conveyors |
| Agricultural Machinery |
Harvesters, Tractors |
Reduce Downtime with 21305CDE4 Self-Aligning Spherical Roller Bearing for Heavy Machinery
Mining and agricultural operations face costly delays when bearings fail prematurely. Misalignment, heavy loads, and harsh conditions often lead to unexpected downtime, leaving equipment idle and projects behind schedule. Sourcing reliable bearings that handle these challenges without compromising on delivery time can be a constant struggle for maintenance managers and procurement teams.
21305CDE4 Bearing: Engineered for Reliable Performance in Demanding Environments
The Spherical Roller Bearing 21305CDE4 addresses these pain points with its self-aligning design, double-row roller structure, and high-quality bearing steel construction. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we ensure each bearing meets precision standards from P0 to P4, supporting both OEM and ODM requirements. Whether used in mining excavators or agricultural tractors, this bearing delivers consistent performance even under radial loads and moderate misalignment.
Optimal Performance in Heavy-Duty Applications
Designed for large outer dimensions (200-430mm), the 21305CDE4 Spherical Roller Bearing excels in heavy-load scenarios typical of mining and agricultural machinery. Its self-aligning capability compensates for shaft deflection and installation errors, reducing stress on equipment components. The bearing operates efficiently with either grease or oil lubrication, making it adaptable to diverse working conditions, from dusty mine sites to muddy farm fields.
Key Technical Features That Enhance Machinery Reliability
The precision rating options (P0-P4) allow customization based on application needs, with higher grades minimizing vibration and noise in sensitive equipment. Clearance levels (C0, C3, C4) are selected to accommodate thermal expansion and operational loads, ensuring optimal performance at varying temperatures. The double-row roller design distributes weight evenly, increasing load capacity and extending service life compared to single-row alternatives. Constructed from durable bearing steel, this bearing resists wear and fatigue, even in continuous operation.
Why Authentic Bearings Matter for Long-Term Cost Efficiency
Choosing genuine Spherical Roller Bearings like the 21305CDE4 avoids the hidden costs of counterfeit products. Inferior bearings often fail early, leading to unplanned maintenance, replacement parts, and lost productivity. Our bearings undergo rigorous quality control in our dedicated lab, ensuring compliance with international standards. With a 12-month global warranty, we stand behind our products, offering defect replacement or refunds to protect your investment and reduce total cost of ownership.
Our Commitment to Reliable Supply and Support
With over 18 years of experience serving global buyers, we maintain a production capacity of 1,000,000 units annually, ensuring stable supply even for large orders. Our flexible order policies include 1pc MOQ for standard items, 3-5 day sample lead time, and 5-15 day bulk delivery—ideal for both emergency repairs and planned maintenance. We provide free technical guidance to help you select the right bearing for your equipment, and our multilingual support team is available via phone, WhatsApp, and email to address inquiries promptly.
Packaging & Shipping
- Carton and pallet packaging for secure transportation
- 3-5 day lead time for samples, 5-15 days for bulk orders
- Multiple shipping options including T/T, credit card, and Alibaba trade assurance
- Free samples available with buyer covering freight costs
- 1pc MOQ supported for standard items, ideal for emergency replacements
Get Your 21305CDE4 Bearing Shipped Fast
Don’t let bearing failures disrupt your operations. Whether you need a single replacement or bulk order, our streamlined process ensures quick delivery. Send us your requirements today to get a quote and keep your machinery running without unnecessary delays.
Frequently Asked Questions
Q: Are these bearings authentic and traceable?
A: Yes, we are an integrated manufacturer with full quality control processes. Each bearing is produced in our ISO-certified facility and can be traced through our production records.
Q: How do I confirm if the 21305CDE4 is compatible with my equipment?
A: Provide your equipment model or technical specifications, and our engineering team will verify compatibility and recommend the appropriate clearance and precision等级 for your application.
Q: What is your warranty policy for this bearing?
A: We offer a 12-month global warranty covering manufacturing defects. If a bearing fails due to material or production issues, we provide replacement or a refund.
Q: What is the minimum order quantity for the 21305CDE4?
A: We accept 1pc MOQ for standard items, making it easy to order emergency replacements or test samples before placing bulk orders.
Q: How long does it take to ship after ordering?
A: Standard items are shipped within 5-15 days. For urgent needs, contact us to discuss expedited options.
Q: Can you provide custom lubrication or packaging for this bearing?
A: Yes, we offer OEM/ODM services including custom lubrication, branding, and packaging to meet specific customer requirements.
Ready to order or need a quote?
Send your bearing model, application details, and quantity to sales02@saifan-group.com — we'll respond within 24 hours.
