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Aligning Needle Roller Bearings
  • Aligning Needle Roller BearingsAligning Needle Roller Bearings
  • Aligning Needle Roller BearingsAligning Needle Roller Bearings
  • Aligning Needle Roller BearingsAligning Needle Roller Bearings

Aligning Needle Roller Bearings

BMT Bearings provides high-quality Aligning Needle Roller Bearings for machinery that requires compact design, strong radial load performance, and stable operation under slight shaft misalignment. With more than 20 years of bearing manufacturing experience, we supply reliable bearing solutions for industrial equipment manufacturers, OEM projects, and global distributors seeking long service life and dependable running performance.

In actual factory environments, machines rarely stay perfectly aligned after long operating hours. We have seen many cases where vibration, shaft movement, installation deviation, or housing wear gradually affect bearing performance. Standard bearings often generate extra heat and noise under these conditions, which can eventually lead to premature failure.

Our Aligning Needle Roller Bearings are developed to handle these real operating challenges more effectively. The self-aligning structure allows the bearing to automatically compensate for minor alignment errors during rotation, helping machinery maintain smoother operation and reducing unnecessary stress on the bearing system.

This type of bearing is especially suitable for equipment running continuously for long periods or operating under unstable load conditions.

Product Specifications

Designation Bore Diameter (mm) Needle Roller Bore (mm) Outer Diameter (mm) Width (mm) Dynamic Load Rating (kN) Limiting Speed (r/min)
PNA 17/35 17 - 35 16 13.2 22, 000
PNA 25/47 25 - 47 20 22.9 15, 000
PNA 30/52 30 - 52 20 24.6 13, 000
RPNA 15/28 - 15 28 12 7.37 28, 000
RPNA 20/35 - 20 35 16 13.2 22, 000
PNA 22/44 22 - 44 20 22 16, 000
PNA 35/55 35 - 55 20 26.4 11, 000
PNA 40/62 40 - 62 20 27.5 10, 000
RPNA 25/42 - 25 42 20 19 18, 000
RPNA 30/47 - 30 47 20 22.9 15, 000
PNA 20/42 20 - 42 20 19 18, 000
RPNA 35/52 - 35 52 20 24.6 13, 000
RPNA 40/55 - 40 55 20 26.4 11, 000
RPNA 45/62 - 45 62 20 27.5 10, 000
PNA 12/28 12 - 28 12 7.37 28, 000
PNA 15/32 15 - 32 16 12.8 24, 000
RPNA 18/32 - 18 32 16 12.8 24, 000


Aligning Needle Roller BearingsAligning Needle Roller Bearings


Technical Parameters

typical Aligning Needle Roller Bearings Models
Designation Dimensions (mm) Basic Load Ratings (kN) Application Scenarios
RPNA 15/28 Fw=15, D=28, C=12±0.5, D1=24.5, r min.=0.8 dyn. Cr=6.9, stat. Cor=7.9 Small gearboxes, pumps
RPNA 18/32 Fw=18, D=32, C=16±0.5, D1=27, r min.=1.8 dyn. Cr=12.5, stat. Cor=16.2 Textile machinery, conveyors
RPNA 20/35 Fw=20, D=35, C=16±0.5, D1=30.5, r min.=2.8 dyn. Cr=13, stat. Cor=17.5 Agricultural equipment
RPNA 25/42 Fw=25, D=42, C=20±0.5, D1=36.5, r min.=3.8 dyn. Cr=18.8, stat. Cor=30.5 Machine tools, compressors
RPNA 28/44 Fw=28, D=44, C=20±0.5, D1=38.5, r min.=4.8 dyn. Cr=22, stat. Cor=34 Printing presses
RPNA 30/47 Fw=30, D=47, C=20±0.5, D1=42, r min.=5.8 dyn. Cr=22.6, stat. Cor=36 Fans, blowers
RPNA 35/52 Fw=35, D=52, C=20±0.5, D1=47.5, r min.=6.8 dyn. Cr=24.3, stat. Cor=41.5 Construction machinery
RPNA 40/55 Fw=40, D=55, C=20±0.5, D1=50.5, r min.=7.8 dyn. Cr=26, stat. Cor=47 Material handling systems
RPNA 45/62 Fw=45, D=62, C=20±0.5, D1=58, r min.=8.8 dyn. Cr=27.5, stat. Cor=53 Heavy-duty conveyors
PNA 12/28 d=12, F=15, D=28, C=12±0.5, B=12, D1=24.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=6.9, stat. Cor=7.9 Small motors, precision tools
PNA 15/32 d=15, F=18, D=32, C=16±0.5, B=16, D1=27, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=12.5, stat. Cor=16.2 Textile spindles
PNA 17/35 d=17, F=20, D=35, C=16±0.5, B=16, D1=30.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=13, stat. Cor=17.5 Packaging machines
PNA 20/42 d=20, F=25, D=42, C=20±0.5, B=20, D1=36.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=18.8, stat. Cor=30.5 Automobile accessories
PNA 22/44 d=22, F=28, D=44, C=20±0.5, B=20, D1=38.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=22, stat. Cor=34 Hydraulic pumps
PNA 25/47 d=25, F=30, D=47, C=20±0.5, B=20, D1=42, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=22.6, stat. Cor=36 Pneumatic tools
PNA 30/52 d=30, F=35, D=52, C=20±0.5, B=20, D1=47.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=24.3, stat. Cor=41.5 Mining equipment
PNA 35/55 d=35, F=40, D=55, C=20±0.5, B=20, D1=50.5, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=26, stat. Cor=47 Marine auxiliary systems
PNA 40/62 d=40, F=45, D=62, C=20±0.5, B=20, D1=58, r min.=0.8, r1 min.=0.3, s min.=0.5 dyn. Cr=27.5, stat. Cor=53 Industrial mixers

Advantages of BMT Aligning Needle Roller Bearings

Better Compensation for Misalignment

The specially designed outer ring raceway allows the bearing to adjust naturally when shaft deflection or mounting inaccuracies occur. This helps improve operational stability and reduces uneven wear.

Compact Structure with High Load Capacity

Compared with ordinary ball bearings, needle roller bearings provide larger contact surfaces while maintaining a smaller cross-sectional size. This makes them ideal for equipment with limited installation space.

Reduced Noise During Operation

Our factory uses automatic grinding and precision assembly equipment to improve raceway smoothness and rotational consistency. Customers using BMT bearings in motors and transmission systems often require stable low-noise performance, especially for continuous-running machinery.

Reliable Performance for Long-Term Use

From material selection to heat treatment and final inspection, every production step follows strict internal quality standards. BMT Bearings has accumulated extensive production experience in supplying industrial bearings for demanding applications worldwide.

Common Applications

BMT Aligning Needle Roller Bearings are widely used in:

· Electric motors

· Pumps and reducers

· Agricultural machinery

· Textile equipment

· Packaging machines

· Conveyor systems

· Industrial fans

· Automation machinery

· Household appliance motors

· Motorcycle transmission parts

Many of our customers choose this bearing type because it performs well in environments where installation precision may vary or continuous vibration exists.

What Makes BMT Bearings Different

We are not simply trading bearings. BMT Bearings has its own manufacturing facilities and automated production lines in China, allowing us to control quality from raw materials to finished products.

Over the years, we have continued improving our production process based on actual customer feedback and equipment operating conditions. This practical experience helps us better understand what industrial buyers truly care about:

· Stable quality between batches

· Accurate dimensions

· Consistent running performance

· Fast delivery capability

· Technical communication efficiency

· Long-term supply stability

Today, our annual production capacity exceeds 100 million bearing sets, supporting customers across multiple industries and international markets.

Quality Control You Can Verify

Every batch of BMT Aligning Needle Roller Bearings goes through multiple inspection procedures before shipment, including:

· Dimensional accuracy inspection

· Hardness testing

· Raceway precision checking

· Noise and vibration testing

· Rotational performance testing

· Surface quality inspection

We understand that industrial buyers need products they can trust for long-term operation, not only attractive catalog descriptions. For this reason, we focus heavily on production consistency and traceable quality management.

OEM & Custom Manufacturing Support

Different equipment designs require different bearing specifications. BMT Bearings supports customized solutions according to customer drawings or technical requirements, including:

· Non-standard sizes

· Customized internal clearance

· Different sealing solutions

· Special cage structures

· Low-noise bearing configurations

· OEM laser marking and packaging

Our engineering team can help customers select suitable Aligning Needle Roller Bearings based on actual application conditions and operating requirements.

Work with BMT Bearings

As a professional bearing manufacturer established in 2004, BMT Bearings continues to supply dependable bearing products for global industrial markets. We value long-term cooperation and focus on providing stable quality, responsive communication, and practical solutions for our customers.

If you are sourcing Aligning Needle Roller Bearings for OEM production, industrial maintenance, or distribution business, BMT Bearings welcomes your inquiry.

 

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