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QA1 AIB5 AIB Series Spherical Bearing 5/16 in. Bore Chromoly Steel

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

AIB5
6 reviews
Sale Price

$9.61

Estimated ship date Friday, November 20

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Product Details

The QA1 AIB5 is a commercial-grade AIB Series spherical bearing engineered for performance suspension, rod end, and linkage applications. Built from heat-treated alloy/chromoly steel, this bearing delivers superior wear resistance over traditional carbon steel alternatives, making it a reliable choice for demanding motorsports and performance street applications.

Ball Construction:

  • Material: 52100 bearing steel, heat treated
  • Finish: Hard chrome plated after precision grinding for smooth, consistent operation

Race Construction:

  • Material: Alloy/chromoly steel, heat treated
  • Finish: Protective coating for corrosion resistance, oil coated
  • Optional: Heat treated stainless steel race available

Key Specifications:

  • Inner Bore Diameter: 5/16 in. (0.3125 in.)
  • Outside (Race) Diameter: 3/4 in. (0.750 in.)
  • Race Width: 11/32 in. (0.344 in.)
  • Inner Ball Width: 7/16 in. (0.437 in.)
  • Bearing Type: Spherical plain, metal-to-metal, open, self-aligning
  • Relubricatable: Yes — lubrication hole in outer race
  • Liner: None (see AIB-T Series for optional PTFE self-lubricating liner)
  • Sold: Individually

The AIB Series offers commercial-grade dimensions that differ from QA1's traditional COM Series bearings, providing builders with more flexibility when designing custom suspension linkages and rod end applications. The two-piece open design allows for easy relubrication to extend service life in high-cycle applications.

Products specifications

Approx Bearing Weight

0.04

B (+0.0015/-0.005)

0.3125

Ball Dia Ref

0.625

Chamfer Reference

0.020 in.

D (+0.0000/-0.0007)

0.75

Inner Ball Diameter (in.)

0.3125 in.

Inner Ball Width (in.)

0.437 in.

Misalign Angle

11

Notes

Alloy steel.

O Flat Dia Ref

0.448

Quantity

Sold individually.

Race Width (in.)

0.344 in.

Receiver Race Diameter (in.)

0.7500 in.

Rod End Ball Diameter (in.)

0.625 in.

Rod End Bearing Material

Steel

Rod End Misalign Angle (degrees)

11 degrees

T (+/-0.005)

0.343

ULT. Static Radial Load (lbs.)

12,900 lbs.

UTL Radical Static

12900

W (+0.000/-0.005)

0.437

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Title

QA1 Suspension Bearing AIB5

All seems correct and quick... good communication

autoplicity is a great on line shopping experience . with low prices and fast shipping, you will be pleased. i really like there way of doing business.

Quite shipping and awesome support. Definately going to do business again.

I was searching for a CAI for my ford fusion and found it on their web site. Great customer service, and super fast delivery! Thank you again for everything.

The part I purchased had the lowest price I could find online anywhere.. Simple transaction and fast shipping.. Ordered on a Monday and delivered by Friday..

First time I've ordered from Autoplicity. They had the cheapest price, I found online. Shipping was quick also. <br>Thanks!!!

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