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Bearing Plate & Wing Bearing U-Joint Identifier

Bearing Plate & Wing Bearing U-Joint

The u-joint series is specific to each cross measurement as described below based on the cap diameter and span over the crosses.  

Bearing Plate Cross

Between Caps: 
When measuring the u-joint, compress the caps and measure from inside of bearing plate to inside of bearing plate. If measuring an end yoke, measure from the outside of ear to ear. 

Cap Diameter:
When measuring the u-joint cap, measuring the bearing cap diameter. If you are measuring the end yoke, measure the width of the opening where the cap sits in the yoke.

Wing Bearing Cross 

Pilot Diameter: 
Pilot diameter measurement is taken over the outside of the wing bearing caps. Prior to taking measurements fully compress the bearing caps. 

Between Bolts:
Centerline of bolt hole to centerline of bolt hole on each bearing.

Cap Type:
The medium and heavy duty U-joints come in five different styles: Low Wing Threaded (LWT), Low Wing Drilled (LWD), High Wing Threaded (HWT), High Wing Drilled (HWD),  Delta Wing Threaded (TBC/DWT)

Bearing Plate & Wing Bearing U-Joint Sizes and Series

We recommend using a caliper or micrometer to most accurately measure u-joints. U-joint caps must be compressed when measuring dimension over the caps. Once you have recorded your measurements, refer to the dimensional charts by u-joint type.

 Series Width
Cap Diameter
Pilot Diameter
Between Bolts
Bradley / 1610 5.312 Inch 1.875 Inch 5.606 Inch 2.400 Inch
1810 / 9C
7.547 Inch 1.938 Inch 8.250 Inch 2.812 Inch
1880 / 9C 8.094 Inch 2.188 Inch 8.250 Inch 2.812 Inch