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Factory Free sample Bicycle Ball Bearings - PNA12/28 Alignment needle roller bearings, with an inner ring – CWL

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Being supported by an innovative and experienced IT team, we could present technical support on pre-sales & after-sales service for Carbon Steel Bearings, cylindrical roller, Snowmobile Bearings, We hope to establish more business relationships with customers all over the world.
Factory Free sample Bicycle Ball Bearings - PNA12/28 Alignment needle roller bearings, with an inner ring – CWL Detail:

Alignment needle roller bearings have an outer ring with a sphered outside surface. Two polymer seating rings with a sphered inside surface are encased in a drawn sheet steel sleeve and fitted over the outer ring.This design enables the bearing to accommodate static misalignment of the shaft relative to the housing.In applications where the shaft cannot be hardened and ground, bearings with an inner ring should be used. The permissible axial displacement of the shaft relative to the housing is limited for bearings with an inner ring. If the permissible axial displacement provided by a standard inner ring is insufficient, it is possible to use an extended inner ring.

Bearings without an inner ring are an excellent choice for compact bearing arrangements, if the shaft can be hardened and ground.

The Features of PNA12/28 Alignment needle roller bearings

Accommodate static misalignment:Alignment needle roller bearings are self-aligning up to 3° of static misalignment.

Low cross section:In applications where less space is available, alignment needle roller bearings offer a compact solution.

High carrying capacity:Owing to their large number of rollers, alignment needle roller bearings have a high load carrying capacity.

PNA12/28 Alignment needle roller bearings, with an inner ring  detail Specifications

Main Dimensions
Bore diameter(d): 12mm
Raceway diameter inner ring(F): 15mm
Outer diameter(D):28mm
Width(C±0.5):12mm
Shoulder diameter sleeve(D1):24.5mm
Chamfer dimension sheet steel sleeve(r) min.:0.8mm
Chamfer dimension inner ring(r 1)min.:0.3mm
Permissible axial displacement from the normal position of one bearing ring relative to the other(s min.):0.5mm
Dynamic load ratings (Cr): 6.9KN
Static load ratings (Cor): 7.9KN

ABUTMENT DIMENSIONS
Smallest permissible abutment diameter shaft(da)min.:14 mm
Smallest permissible abutment diameter housing(Da)min.:23.5 mm
Largest permissible abutment diameter housing(Da)max.:24.5 mm
Fillet radius(ra)max.:0.8 mm
Fillet radius(rb)max.:0.3 mm


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Factory Free sample Bicycle Ball Bearings - PNA12/28 Alignment needle roller bearings, with an inner ring – CWL detail pictures


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During the past few years, our business absorbed and digested state-of-the-art technologies the two at home and abroad. Meanwhile, our firm staffs a group of experts devoted to your development of Factory Free sample Bicycle Ball Bearings - PNA12/28 Alignment needle roller bearings, with an inner ring – CWL , The product will supply to all over the world, such as: Slovenia, Cambodia, Macedonia, Our company is continuing to serve customers with high quality, competitive price and timely delivery. We sincerely welcome friends from all over the world to cooperate with us and enlarge our business. If you are interested in our products, please feel free to contact us. We would love to provide you with further information.
  • This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.
    5 Stars By Caroline from El Salvador - 2017.11.29 11:09
    We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
    5 Stars By Lynn from Adelaide - 2017.09.09 10:18
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