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QA1 WPB4TG WPB Series Wide Stainless Steel Spherical Bearing 1/4in. Bore PTFE Lined with Staking Groove

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

WPB4TG
4 reviews
Sale Price

$17.95

Estimated ship date Saturday, November 21

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Product Details

The QA1 WPB4TG is a precision-grade, wide-series spherical bearing engineered for demanding performance and race applications. Part of QA1's WPB-TG Series, this bearing delivers tighter tolerances than traditional spherical bearings, making it an ideal upgrade for suspension linkages, rod ends, and high-stress pivot points.

Key Features:

  • Bore Size: 1/4 in. — fits standard 1/4 in. fasteners and rod end applications
  • Ball Material: 440C stainless steel, heat treated, precision ground, and hard chrome plated for superior wear resistance and smooth articulation
  • Race Material: Heat-treated stainless steel with a machined V-groove staking channel for secure retention during installation
  • Liner: Self-lubricating PTFE race lining eliminates the need for greasing and reduces maintenance intervals
  • Wide-Body Design: Increased width compared to standard-series bearings provides greater load capacity and stability
  • Staking Groove (TG): Integrated staking groove allows the bearing to be positively locked into its housing, preventing rotation or migration under load
  • Precision Grade: Tighter dimensional tolerances versus commercial-grade spherical bearings for reduced play and more precise handling response
  • Corrosion Resistant: Full stainless steel construction — ball and race — offers excellent resistance to moisture, road grime, and harsh environments

The QA1 WPB4TG spherical bearing is sold individually and is well-suited for motorsport suspension builds, custom fabrication, and any application requiring a maintenance-free, high-precision pivot bearing with a positive locking feature.

Products specifications

Approx Bearing Weight

0.03

B (+0.0000/-0.0005)

0.25

Ball Dia Ref

0.531

D (+0.0000/-0.0005)

0.625

G (+0.000/-0.010)

0.565

Inner Ball Diameter (in.)

0.2500 in.

Inner Ball Width (in.)

0.437 in.

Misalign Angle

15

No Load Breakaway

0.25-5

O Flat Dia Ref

0.3

P (+0.000/-0.015)

0.03

Quantity

Sold individually.

R (+0.002/-0.005)

0.01

Race Width (in.)

0.327 in.

Receiver Race Diameter (in.)

0.6250 in.

Rod End Ball Diameter (in.)

0.531 in.

Rod End Bearing Material

Stainless steel

Rod End Misalign Angle (degrees)

15 degrees

S Min

0.01

T (+/-0.005)

0.327

ULT. Static Radial Load (lbs.)

5,500 lbs.

UTL Axial Push

1770

UTL Radical Static

5500

Title

QA1 Suspension Bearing WPB4TG

Prop 65

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

Awesome company!!!!!! Will definitely order from here again! Order arrived fast. Was exactly as described/pictured. Great price!

Absolute best price on the web, very fast. Definitely ordering Autoplicity in the near future....

They had the best price on a hitch I was looking for and the shipping was fast also. The hitch was shipped bare except for taping the box of bolts to it thus leaving the hitch open and chipping the paint/powdercoating in quite a few places which I had to touch up before installing.

Very fast

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