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QA1 MIB5 MIB Series Spherical Bearing Steel Heat-Treated Cup Carbon Inner 5/16 in. ID

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

MIB5
6 reviews
Sale Price

$8.88

Estimated ship date Saturday, November 21

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Product Details

The QA1 MIB5 is a MIB Series spherical plain bearing designed for high-performance suspension, steering, and linkage applications where precise articulation and load-bearing capability are required. Featuring a heat-treated steel cup (outer race) paired with a low carbon steel inner race, this bearing delivers reliable performance under demanding conditions.

Key Features:

  • Inner Diameter: 5/16 in. — fits 5/16 in. shafts, bolts, or rod ends
  • Heat-Treated Steel Cup: Provides increased hardness and wear resistance for extended service life
  • Low Carbon Steel Inner Race: Offers toughness and smooth articulation under load
  • Spherical Design: Allows for angular misalignment, ideal for suspension links, control arms, and chassis rod end applications
  • Compact and lightweight construction for performance and racing applications
  • Compatible with QA1 rod ends and other standard 5/16 in. bore suspension components

The QA1 MIB5 is a direct-fit replacement or upgrade bearing for racers, builders, and performance enthusiasts who demand precision-engineered components. Part of QA1's comprehensive line of suspension hardware, this bearing is well-suited for circle track, drag racing, and high-performance street 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

The bearing is alloy steel and the race is low-carbon 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.)

8,600 lbs.

UTL Radical Static

8600

W (+0.000/-0.005)

0.437

Prop 65

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

Title

QA1 Suspension Bearing MIB5

Autoplicity was quick and easy to order from. I found just what I was looking for in absolutely no time at all, plus it was shipped extremely quickly. I would definitely order from this site/company again.<br><br>Thanks!

Right item, right price !

My experience with autoplicity was great. Great selection and service. Fast shipping. Will definitely use them again.

Fast shipping, product was excellent .

I ordered a hitch off of this site for Christmas, I have never heard of it nor did I know how they were, but they are great! Got my package in I'd say 4 days, very fast and it was exactly what I wanted! Only down fall was they charged me 3 times and I was short 150$ for a few days. I got my money back and I would definitely order again.

Smooth transaction, very pleased

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