Bearing INA F-202168 02-M7 28.56mm ID x 44.00mm OD x 17.00 mm Needle Bearing

Hey there! So, these cylindrical roller bearings are pretty cool. They're designed to handle heavy loads and mainly bear radial loads. They have a linear contact design with the raceway, which means the friction between the rolling body and the sleeve is really low. This makes them perfect for high-speed rotation.

There are a bunch of different types of cylindrical roller bearings, like NU, NJ, NUP, N, NF, NNU, and NN. The type you need depends on whether or not the sleeve has a side.

One of the best things about these bearings is that they have a large radial bearing capacity, which makes them perfect for handling heavy loads and impact loads. They also have a low friction coefficient, which means they can handle some serious speed - their ultimate speed is close to that of a deep groove ball bearing.

If you need to install these bearings, keep in mind that high processing requirements are needed for shaft or pedestal holes. After installation, it's important to strictly control the relative deviation of the outer ring axis to avoid contact stress concentration. But the good news is that the inner or outer rings can be separated to make installation and disassembly easier.

So, where are these bearings used? You'll find them in all kinds of heavy-duty machinery, like large and medium electric motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, reduction gearboxes, rolling mills, vibrating screens, and hoisting transport machinery. They're basically perfect for anything that needs to handle a heavy load and spin really fast!

Other models:

Your Trusted Excavator Parts Supplier – Manufacturer & One-Stop Sourcing Solution

Looking for a reliable supplier of excavator parts? Whether you need OEM services or a complete range of parts, we provide the best solutions for your business. As both a manufacturer and trading company, we combine factory-direct prices with the convenience of one-stop sourcing, ensuring that you get high-quality parts at competitive prices.

At YNF Machinery, we specialize in excavator rubber parts and a wide range of excavator components. Our extensive experience and commitment to quality make us a trusted partner for distributors, wholesalers, and repair shops worldwide.

Why Choose YNF Machinery?

We are not just another supplier—we are your long-term partner for excavator parts. Here’s why businesses worldwide choose us:

✅ Largest Excavator Rubber Parts Factory in Southern China

Our factory is the biggest excavator rubber parts manufacturer in southern China. This means:
✔ Lower production costs, allowing you to increase your profit margins
✔ Reliable and stable supply, ensuring you get the parts you need, when you need them
✔ Consistent quality control, reducing the risk of defective products

✅ Thousands of Products & Multiple Quality Levels

We offer a comprehensive range of excavator parts, covering various brands and models.
✔ Choose from thousands of product lines
✔ Select from different quality levels to suit your market demands
✔ Always find the right part, reducing time spent searching for suppliers

✅ Expanding Global Network – 16+ Agents in China & Growing

We have over 16 agents across China and are actively expanding our global presence.
✔ Looking for distributors and agents worldwide—let’s grow together!
✔ Support with marketing, logistics, and product knowledge
✔ Long-term partnership opportunities with exclusive benefits

✅ 30+ Years of Industry Expertise

With decades of experience, we understand the excavator parts market inside out.
✔ Established reputation for reliability and professionalism
✔ Knowledgeable team to help you find the right parts quickly
✔ Expertise in OEM manufacturing, making custom parts to your specifications

✅ OEM Services & Customization

Looking to develop your own brand or need custom parts? We’ve got you covered!
✔ Our own factory can manufacture parts based on your designs and specifications
✔ We provide custom branding options to help you build your business
✔ From rubber parts to metal components, we can customize everything you need

✅ Office & Showroom in Guangzhou – Convenient Logistics

Our Guangzhou office and showroom allow for easy business meetings and fast shipping.
✔ View and inspect products before ordering
✔ Quick access to major ports for efficient global shipping
✔ Dedicated customer support team to assist with orders and inquiries

What Excavator Parts Do We Offer?

We cover all major excavator brands, including Caterpillar, Komatsu, Hitachi, Volvo, Kobelco, Doosan, Hyundai, JCB, Kubota, and more. Our product range is designed to keep your machines running efficiently and reduce downtime.