High Precision Heavy Duty Needle Roller Bearing Bk/Nk/Rna/Nki Series for Printing Machinery

Product Description

Needle Bearing Introduction

Needle bearings feature slender rollers, offering high load capacity in a compact structure. We offer mainstream models (HK, BK, RNA, TAF) for diverse applications.
Made of high-quality alloy steel with precision heat treatment, they excel in wear resistance, rust proofing and durability, fitting auto, industrial and agricultural machinery.
Ideal for assembly, maintenance and spare parts, our bearings ensure stable operation. Strict quality control guarantees consistent quality and international interchangeability.
Our needle bearings cover multiple mainstream models, including HK, BK, RNA, TAF series, each tailored to specific application needs. HK and BK series are unidirectional thrust needle bearings, featuring simple structure and reliable load transmission, widely used in small mechanical components. RNA and TAF series are without inner ring, suitable for occasions where the shaft serves as the raceway, reducing overall weight and cost of the equipment.
Crafted from high-quality alloy steel with precision heat treatment, these needle bearings boast outstanding performance in wear resistance, rust prevention and long service life. They can withstand heavy loads, high speeds and harsh working environments, perfectly fitting scenarios such as auto transmission systems, industrial machinery, agricultural equipment, motors, generators and construction machinery.

Specification

Needle Bearing- Specifications

Specifications

Our needle bearings cover mainstream series including HK, BK, RNA and TAF, each with targeted characteristics. HK and BK series are unidirectional thrust needle bearings, featuring a simple structure and reliable load transmission, suitable for small mechanical components. RNA and TAF series are inner ring-free, designed for scenarios where the shaft acts as the raceway, effectively reducing equipment weight and overall cost. Crafted from high-quality alloy steel through precision heat treatment, these bearings possess excellent wear resistance, rust prevention and long service life, ensuring stable performance under high loads and high speeds.
Application Scenarios

With their compact structure and strong load-carrying capacity, our needle bearings are widely applied in multiple fields. They are perfectly suited for auto transmission systems, industrial machinery repair and assembly, agricultural equipment maintenance, motors & generators, as well as construction machinery spare parts. These bearings can adapt to harsh working environments, making them ideal choices for both new equipment assembly and spare part replacement, providing reliable support for global industrial and automotive industries.

Specification & Model:

The following table details the core parameters of our mainstream needle bearing series:

All series are crafted from high-quality alloy steel via precision heat treatment, ensuring excellent wear resistance, rust prevention and stable performance under high loads and speeds.

Series	Type	Key Features	Suitable For
HK	Unidirectional Thrust Needle Bearing	Simple structure, reliable load transmission	Small mechanical components
BK	Unidirectional Thrust Needle Bearing	Simple structure, reliable load transmission	Small mechanical components
RNA	Inner Ring-Free Needle Bearing	Shaft as raceway, reduces weight & cost	Equipment with limited installation space
TAF	Inner Ring-Free Needle Bearing	Shaft as raceway, reduces weight & cost	Equipment with limited installation space

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

Company Profile

Shandong Wanshifa Bearing Co., Ltd. 

Shandong Wanshifa Bearing Co., Ltd. is located in Jinan City, Shandong Province, China. It has a history of over 20 years. The company is a bearing enterprise integrating industry and trade.
The company's main products include thousands of types of bearing products, such as deep groove ball bearings, self-aligning ball bearings, cylindrical roller bearings, self-aligning roller bearings, angular contact bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings, spherical bearings, automotive bearings, etc. Its application fields cover: railway freight cars, passenger cars and rail transit bearings, automotive bearings, wind power generation bearings, ship bearings, machine tool bearings, mechanical bearings, metallurgical rolling mill bearings, motor bearings, etc. The design and development of high-end bearing products have won the favor of domestic and foreign users due to their low energy consumption, long lifespan and high quality characteristics.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support

Wheel bearing
Ball Bearing
Auto Bearing
Roller Bearing

Packing & Delivery

Packaging:

1. Neutral Package: Plastic Bag + Carton + Pallet;
2. Commercial Package: Plastic Bag + Box + Carton + Pallet;
3. As the clients' requirement.

Delivery:

1. Less than 1000 pcs , we will send by express. ( Door to Door, Convenient ),
or by air transport. ( Fastest and safest, but expensive )
2. More than 1000pcs , we will send by sea. ( Cheapest, safe )

FAQ

1. Your factory how to control the quality?
A: All bearing parts before the production and the production process, strict inspection by 100%, including crack detection, roundness, hardness, roughness, and the geometry size, all bearing meet ISO international standard.
2. Can you tell me the bearing material?
A: We have chrome steel GCR15, stainless steel, ceramics and other materials.
3. How long is your delivery time?
A: If the goods are in stock, usually 5 to 10 days, if the goods are no stock for 15 to 20 days, according to the quantity to determine the time.
4. OEM and custom you can receive?
A: Yes, accept OEM, can also be customized according to samples or drawings for you.

Certifications