INA Needle Roller Bearing: HK, 4520, 45 mm Bore, 52 mm OD, Open, 20 mm Overall Wd
The INA HK4520-B is a metric drawn-cup needle roller bearing with a single row of rollers and a non-full complement design. It features a 45 mm bore, 52 mm outside diameter, and 20 mm overall width, constructed from…
SKU 3G-OTH-107332
Need installation or engineering help?
Ask a question
Product Description
The INA HK4520-B is a metric drawn-cup needle roller bearing with a single row of rollers and a non-full complement design. It features a 45 mm bore, 52 mm outside diameter, and 20 mm overall width, constructed from alloy steel with an open configuration. This bearing is identified by the industry number 4520 and is designed for applications requiring a compact, high-capacity radial bearing.
Frequently Asked Questions
What is the INA HK4520-B needle roller bearing used for?
The INA HK4520-B drawn-cup needle roller bearing is used in compact radial-load applications such as automotive transmissions, gearboxes, pumps, and industrial machinery. Its single-row, non-full complement design provides high load capacity in a small envelope, making it ideal for limited-space assemblies.
What are the specifications of the INA HK4520-B bearing?
The INA HK4520-B is a metric drawn-cup needle roller bearing with a 45 mm bore, 52 mm outside diameter, and 20 mm overall width. It has one row of rollers, is open (no seals), and is made of alloy steel. The industry number is 4520 and the manufacturer part number is HK4520-B.
Where to buy the INA HK4520-B bearing worldwide?
You can source the INA HK4520-B bearing through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine INA components for industrial maintenance and production needs.
How to select the correct INA drawn-cup needle roller bearing?
To select the correct INA drawn-cup needle roller bearing, match the bore, outside diameter, and width to your housing and shaft dimensions. Verify the bearing design (HK series), number of rows, and whether a full complement or caged design is required. The INA HK4520-B is a single-row, non-full complement option for compact radial loads.
Used in
Common applications for INAINA Products
3G Electric supplies INA drawn-cup needle roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.







