Spa Motor Thru-Bolt Types

 

line in the header graphics

Calculators

Pool Gallon Calculator

Liquid Calculator

Charts

Chemical pH Chart

Deck-O-Seal 

Gladon 

Salt Levels for Pools

Sand Qty For Filters

Stabilizer Levels

Education

Industry Terminology

Safety

MSDS Data Sheets

Product Support

Balboa Ref Cards

Error Codes - Balboa

Error Codes - Others

Manuals / Installation

Technical

Heater Element Ohms

Thru-bolt Types

Transformer Tip


 

 


Thru-Bolt Motor Bolt Measurements

Thru-bolt motors are designed to utilize the long bolts which hold
a motor assembly together as a way of attaching a wet-end to a motor.
Thru-bolt style motors/pump are widely used in portable spas.
If you are replacing a motor or wet-end,  you will need to know the following information.

The most common thru-bolt pattern is commonly referred to as :
- standard bolt pattern
- 48 frame bolt pattern 
which measures, center to center across the top two thru-bolts, apox 3-5/8 inches apart. (red arrow)
or apox 5-3/16 inches across, intersecting the motor shaft. (blue arrow)

Another thru-bolt pattern used on many Waterway pumps is sometimes referred to as :
- wide bolt pattern
- 56 frame bolt pattern 
which measures, center to center across the top two thru-bolts, apox 4-1/8 inches apart. (red arrow)
or apox 5-13/16 inches across, intersecting the motor shaft. (blue arrow)

 
 
 

Sorry, we are not a retailer. We sell wholesale to businesses associated with the Pool / Spa and Water Industries only.

© 2015 H2O Company Inc.