Roller Bearing
Ensure smooth, precise rotation in your industrial machinery with our Needle Roller Bearing lineup—K75X81X20, K90X98X30, and K100X107X21—engineered to deliver reliable performance even under heavy radial loads. Crafted from high-grade bearing steel and available in P0-P4 precision grades, these radial bearings without outer rings minimize friction and maximize durability, reducing downtime and maintenance costs for your equipment.
MOQ
1 Piece
Sample Lead Time
3-5 Days
Bulk Lead Time
5-15 Days
Warranty
12 Months
| Parameter | Details |
|---|---|
| Model NO. | K75X81X20, K90X98X30, K100X107X21 |
| Product Name | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Style | Without Outer Ring, Without Inner Ring |
| Material | Bearing Steel |
| Type | Closed |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Specification | 75*81*20 mm, 90*98*30 mm, 100*107*21 mm |
| Origin | China |
| HS Code | 8482102000 |
| Production Capacity | 1000000 |
| Delivery Time | 3-7 days |
| Service | OEM, ODM |
| Transport Package | Carton, Pallet |
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Machine Tools, Printing Equipment, Reducers |
| Automotive | Transmission Systems, Axles |
| Agricultural Machinery | Harvesters, Tractors, Farm Implements |
| New Energy | Wind Turbines, Photovoltaic Equipment |
| Home Appliances | Motors, Pumps, Compressors |
| Construction Machinery | Excavators, Loaders, Conveyors |
Industrial machinery operators know the cost of unexpected downtime—whether from premature bearing failure, delayed replacements, or mismatched parts. When your production line halts due to a failed needle roller bearing, every hour lost translates to missed deadlines and revenue. Sourcing reliable, high-precision bearings that meet your exact specifications shouldn’t add to the stress.
Our K75X81X20, K90X98X30, and K100X107X21 Needle Roller Bearings are designed to address these challenges directly. As an integrated manufacturer with over 15 years of experience, we ensure each bearing meets P0-P4 precision standards, critical for maintaining alignment and reducing vibration in machine tools, printing presses, and reducers. With a 1pc MOQ for standard items and 3-7 days delivery, we eliminate the frustration of large minimum orders and long lead times, keeping your operations running smoothly.
These Radial Bearings Without Outer Ring excel in applications requiring compact design and high radial load capacity. Whether in agricultural machinery like harvesters, where wear resistance is paramount, or in new energy equipment such as wind turbines that demand consistent performance under variable loads, our needle roller bearings deliver. The closed-type design and bearing steel construction ensure durability, while compatibility with both grease and oil lubrication allows flexibility across operating conditions.
Precision rating directly impacts machinery performance—our P0-P4 options let you match bearing accuracy to your equipment’s needs. For high-speed machine tools, P4 precision minimizes runout and noise, reducing wear on adjacent components. Clearance options (C0, C3, C4) further optimize performance: C3 clearance suits applications with temperature variations, preventing seizure, while C0 is ideal for standard operating conditions. These technical details aren’t just specifications—they’re the difference between a bearing that lasts 6 months and one that operates reliably for years.
Low-quality bearings may save money upfront, but they often lead to frequent replacements, unplanned downtime, and even damage to expensive machinery. Our bearings, backed by ISO9001 and ISO14001 certifications, undergo rigorous quality control in our dedicated lab, ensuring consistency batch after batch. The 12-month global warranty and defect replacement policy mean you’re protected against manufacturing issues, reducing total cost of ownership significantly compared to cheaper alternatives.
Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East for over 18 years. Our full R&D capabilities and OEM/ODM customization services mean we can tailor bearings to your unique requirements, from special clearances to custom lubrication. Every order includes free technical guidance, and our responsive after-sales team ensures quick resolution of any issues. With a production capacity of 1,000,000 units annually, we maintain stable supply even for large-volume orders, making us a reliable long-term partner for industrial manufacturers.
Don’t let bearing issues slow down your production. Whether you need a single K75X81X20 for emergency repair or bulk K100X107X21 bearings for scheduled maintenance, we’re ready to fulfill your order. Send us your bearing model, application details, and quantity, and our team will provide a quote within 24 hours—so you can get back to what matters: keeping your machinery running.
Q: Are these needle roller bearings authentic and traceable?
A: Yes, all our bearings are manufactured in-house under strict quality controls and come with full traceability documentation. We hold ISO9001 and ISO14001 certifications, ensuring compliance with international standards.
Q: How do I confirm if the K series bearings will fit my equipment?
A: Provide your equipment model or technical specifications (bore diameter, outer diameter, width, load requirements), and our engineering team will verify compatibility and recommend the optimal precision and clearance等级 for your application.
Q: What is the warranty policy for these bearings?
A: We offer a 12-month global warranty covering manufacturing defects. If a bearing fails due to material or production issues, we provide free replacement or refund.
Q: What is the minimum order quantity for standard bearings?
A: We accept 1pc minimum orders for standard items, making us suitable for both emergency repairs and small-batch purchases.
Q: How quickly can I expect my order to ship?</
Send us your bearing requirements. Our technical team will respond within 24 hours with pricing, availability, and custom options.
Submit Your Inquiry
Fill in product name, quantity, and any custom requirements.
Receive Quotation
We send PI with pricing and lead time within 24 hours.
Confirm & Ship
Confirm order, complete payment, and we arrange delivery.
Roller Bearing
Roller Bearing
Needle Roller Bearings
Needle Roller Bearings