Long Service Life Needle Roller Bearing DC7221C for Agricultural Machinery Applications

Long Service Life Needle Roller Bearing DC7221C for Agricultural Machinery Applications

Product Description

Needle bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are thin and long. Such rollers are called needle rollers.

Despite their small cross-section, the bearings still have a high load-bearing capacity. Needle bearings are equipped with thin and long rollers (roller diameter D≤5mm, L/D≥2.5, L is the roller length), so the radial structure is compact. When the inner diameter size and load capacity are the same as those of other types of bearings, the outer diameter is the smallest, which is particularly suitable for support structures with limited radial installation dimensions.

Depending on the application, bearings without inner rings or needle roller and cage assemblies can be selected. At this time, the journal surface and housing hole surface that match the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure that the load capacity and operating performance are the same as those of bearings with rings, the hardness, machining accuracy and surface quality of the shaft or housing hole raceway surface should be similar to those of the bearing ring raceway.

Technical Parameters:

Other bearing model catalog:

Support and Services:

Technical Support and Service for Tapered Roller Bearings We are committed to providing our customers with the best technical support and service for their tapered roller bearing needs. We have a variety of parts and consumable supply options to meet the needs of any specific application. We are committed to providing the highest quality customer service and satisfaction. If you have any questions or need assistance with tapered roller bearings, please feel free to contact us.

Mode of transport ...within 3 days after received the payment , by air or by express or by sea on the basis of thequantity and emergency circumstances.

By Couriers – DHL,UPS, FEDEX, TNT are the main courier companies we are cooperated,

By Air – Delivery from the Guangzhou air port to customer's destination city air port.

By Sea – Delivery from the Huangpu port

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Ashley
Business Phone:+8615913112076
WhatsApp:+8615913112076
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Email:gzzhbearing@163.com

Welcome your consultation, if you have any questions, please feel free to contact Ashley.