NSK BK1612 Closed-End Needle Roller Bearing – 16 × 22 × 12mm | Heavy Duty Industrial Bearing

The NSK BK1612 Closed-End Needle Roller Bearing is a compact, precision-engineered industrial bearing designed to provide excellent radial load capacity, smooth rotation and reliable performance in demanding mechanical applications.

Featuring a durable thin-walled drawn steel outer cup, precision cylindrical needle rollers and a closed-end construction, the BK1612 bearing offers high load-carrying capability while maintaining a compact and lightweight design.

Its closed-end structure makes this bearing particularly suitable for blind housing installations, where a rotating shaft requires radial support near its end.

With a 16mm roller-inscribed diameter, 22mm outside diameter and 12mm overall width, the BK1612 is suitable for industrial machinery, gearboxes, conveyor systems, automation equipment, agricultural machinery and mechanical drive assemblies.

Key Features

• Closed-End Construction: One end is enclosed by a solid metal cup, making it suitable for blind housing installations.

• High Radial Load Capacity: Precision needle rollers provide excellent radial load support relative to bearing size.

• Compact & Lightweight: Thin-walled drawn cup construction minimises installation space.

• Precision Needle Rollers: Provide smooth rotational movement and efficient load distribution.

• Durable Bearing Steel: Designed for strength, wear resistance and long service life.

• Space-Saving Design: Only 22mm outside diameter and 12mm overall width.

• Press-Fit Installation: Designed for fitting into a correctly sized and supported housing.

• Industrial Applications: Suitable for machinery, mechanical transmissions and rotating shaft assemblies.

Technical Specifications

Common Applications

The BK1612 Closed-End Needle Roller Bearing is suitable for a wide range of mechanical and industrial applications, including:

• Industrial Machinery: Manufacturing equipment, production machinery and rotating shaft assemblies.

• Gearboxes & Transmissions: Supports rotating shafts in blind housing applications.

• Electric Motors & Drive Mechanisms: Suitable for compatible mechanical drive systems.

• Conveyor Systems: Material handling equipment and mechanical drive assemblies.

• CNC Machinery: Compact rotating mechanisms and compatible machine components.

• Agricultural Equipment: Mechanical assemblies used in agricultural machinery.

• Automotive Components: Selected mechanical and transmission applications.

• Industrial Automation: Automated machinery and mechanical drive mechanisms.

• Maintenance & Repairs: Replacement bearing for compatible industrial equipment.

Benefits of Closed-End Needle Roller Bearings

Closed-end needle roller bearings provide high radial load capacity within a compact and lightweight design.

Their thin-walled outer cup helps minimise installation space, while precision needle rollers distribute radial loads efficiently.

Main advantages include:

• High radial load capacity relative to size

• Compact and lightweight construction

• Suitable for blind housing installations

• Closed end helps reduce contamination entering from one side

• Smooth rotation with suitable lubrication

• Efficient use of limited installation space

• Reliable performance under suitable operating conditions

Installation and Maintenance Recommendations

1. Verify shaft diameter, housing bore and bearing dimensions before installation.

2. Ensure the housing is clean, correctly machined and free from damage.

3. Use an appropriate bearing installation mandrel to press the bearing into the housing.

4. Avoid applying installation forces directly through the needle rollers.

5. Ensure the shaft running surface is properly hardened, ground and finished.

6. Apply suitable grease or oil according to the operating conditions.

7. Avoid excessive misalignment, contamination and improper loading.

8. Inspect the bearing periodically for wear, overheating, vibration and unusual noise.

Important Product Information

BK1612 – Closed-End Needle Roller Bearing

• Roller-Inscribed Diameter: 16 mm

• Outside Diameter: 22 mm

• Width: 12 mm

• Construction: One End Closed

• Inner Ring: Not Included

HK1612 – Open-End Alternative

• Roller-Inscribed Diameter: 16 mm

• Outside Diameter: 22 mm

• Width: 12 mm

• Construction: Both Ends Open

Main Difference: BK1612 features one closed end for blind housing applications, while HK1612 is open at both ends for through-shaft applications.

Please confirm dimensions, housing compatibility and operating requirements before ordering.

Learn More – Watch Our Bearing Educational Video

Want to learn more about needle roller bearings, how they work and where they are used?

Watch our educational video from RM Engineering & Automation, where we explain different types of industrial bearings, their working principles, common applications and important considerations when selecting the correct bearing for your machinery.

In this video, you can learn about:

• Different types of industrial bearings

• How needle roller bearings work

• Ball bearings versus roller bearings

• Common industrial bearing applications

• How bearings reduce friction and support rotating shafts

• Important factors when selecting bearings

• Bearing maintenance and common causes of failure

Watch Our Bearing Educational Video on YouTube

https://www.youtube.com/watch?v=G-B4zJTEwAk&t=5s

Subscribe to RM Engineering & Automation on YouTube for more educational videos covering mechanical engineering, industrial automation, bearings, electric motors, sensors, conveyors, robotics and industrial machinery.

Contact RM Engineering & Automation

For more information about our needle roller bearings, industrial components, mechanical parts or automation solutions, please contact us.

RM Engineering & Automation

Website: https://www.rmengineeringautomation.com.au/

Email: info@rmenga.com.au

We supply a wide range of industrial bearings, mechanical components and automation products for manufacturing, maintenance, engineering and industrial applications.