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Precision Brand Products, Inc.
Sof’ Shoe Shim
Can Solve
Your Angular Soft Foot
Alignment Problems!
Precision Brand Products, Inc.
Sof’ Shoe Shim
Can Solve
Your Angular Soft Foot
Alignment Problems!
Ordinary/Parallel Soft Foot
Ordinary/Parallel Soft Foot
Even gap between
the foot and base.
Ordinary/Parallel Soft Foot
Even gap between
the foot and base.
All four corners of the
foot are on the same
plane
Angular Soft Foot
Angular Soft Foot
A condition that refers to uneven or
irregular gaps between the foot and base.
Shim Pack
Poorly machined/
sprung foot
Angular Soft Foot
A condition that refers to uneven or
irregular gaps between the foot and base.
Shim Pack
Poorly machined/
sprung foot
Corroded and/or
irregular base
Angular Soft Foot
A condition that refers to uneven or
irregular gaps between the foot and base.
Shim Pack
Standard shim packs do not
compensate for Angular Soft Foot.
Angular Soft Foot
A condition that refers to uneven or
irregular gaps between the foot and base.
Angular Soft Foot Robs Productivity,
Shortens Motor Life, and
Increases Maintenance Demands
Angular Soft Foot Robs Productivity,
Shortens Motor Life, and
Increases Maintenance Demands
Driven machine, originally in
alignment, experiences shaft
wobble when connected to
improperly aligned motor.
Angular Soft Foot Robs Productivity,
Shortens Motor Life, and
Increases Maintenance Demands
Driven machine, originally in
alignment, experiences shaft
wobble when connected to
improperly aligned motor.
Improperly aligned driver
motor causes shaft wobble.
Why is Angular Soft Foot so destructive?
Why is Angular Soft Foot so destructive?
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Tightening a motor foot that has Angular Soft Foot forces the
foot to make contact with the base, creating unwanted
stresses on the motor housing through the motor’s leg.
These stresses can distort the motor housing and twist
bearings, bending the shaft and causing shaft wobble.
Motor Twist & Foot Movement
Angular Soft Foot will cause:
Angular Soft Foot will cause:
Ultimately, the result will be premature
bearing failure and shorter motor life.
• extra strain on the bearings and seals
• eccentricity of the motor air gap, reducing
efficiency and increasing heat
• excess strain and wear on couplings
How can you recognize Angular Soft Foot?
How can you recognize Angular Soft Foot?
Inconsistent flat rise readings during alignment indicate
Angular Soft Foot. Check the gap under each corner of the
foot with feeler gage. If the measurements are not the same,
the motor may have an Angular Soft Foot condition.
Have you ever “Chased Your Tail”?
Correcting for Soft Foot based on inconsistent dial or laser readings
may measure the spring of a foot
Have you ever “Chased Your Tail”?
Correcting for Soft Foot based on inconsistent dial or laser readings
may measure the spring of a foot and not the actual ordinary, co-planar
flat rise.
Have you ever “Chased Your Tail”?
Correcting for Soft Foot based on inconsistent dial or laser readings
may measure the spring of a foot and not the actual ordinary, co-planar
flat rise. Standard shimming simply lifts the problem
Have you ever “Chased Your Tail”?
Correcting for Soft Foot based on inconsistent dial or laser readings
may measure the spring of a foot and not the actual ordinary, co-planar
flat rise. Standard shimming simply lifts the problem, leading to a
continual repetition of the process often called “chasing your tail”.
What are the traditional cures for Angular Soft Foot?
Step Shim
(Labor intensive and can shake loose)
What are the traditional cures for Angular Soft Foot?
Step Shim
(Labor intensive and can shake loose)
What are the traditional cures for Angular Soft Foot?
Re-Machine
(Costly and impractical for larger
motors and turbines)
Step Shim
(Labor intensive and can shake loose)
What are the traditional cures for Angular Soft Foot?
Re-Machine
(Costly and impractical for larger
motors and turbines)
Step Shim
(Labor intensive and can shake loose)
Poured Epoxy
(Significant downtime and lost production)
What are the traditional cures for Angular Soft Foot?
Re-Machine
(Costly and impractical for larger
motors and turbines)
Step Shim
(Labor intensive and can shake loose)
Poured Epoxy
(Significant downtime and lost production)
Now, the most cost effective and practical solution to
Angular Soft Foot is Sof’ Shoe shim.
Poorly
machined
sprung foot
Corroded and/or
irregular base Shim Pack
Now, the most cost effective and practical solution to
Angular Soft Foot is Sof’ Shoe shim.
Sof’ Shoe shim fills in any uneven
gaps between the foot and base
Poorly
machined
sprung foot
Corroded and/or
irregular base Shim Pack
How does Sof’ Shoe shim work?
How does Sof’ Shoe shim work?
• It’s made of a specially formulated elastomer
• Cold flows and sets to fill any irregular gaps
between foot and base
• Creates total surface contact
• It is an “instant” step shim
What makes Sof’ Shoe shims so effective?
What makes Sof’ Shoe shims so effective?
• Unique properties retain about 50% of it’s flexibility
allowing it to conform to any shape
• Takes a permanent set after ten to fourteen days
under standard bolt torque compression
• Enables instant motor startup after alignment
• Stable to 225 degrees Fahrenheit
Sof’ Shoe shim Catalog Products
•Four motor shim sizes
2”, 3”, 4” & 5”
•Two thicknesses
.020”=Blue & .045=Yellow
UPC No. Shim Size Slot Size Thickness Color Pcs. Per Pkg.
49105 2" x 2" 5/8" .020" Blue 10
49125 2" x 2" 5/8" .045" Yellow 10
49110 3" x 3" 3/4" .020" Blue 10
49130 3" x 3" 3/4" .045" Yellow 10
49115 4" x 4" 1-1/4" .020" Blue 10
49135 4" x 4" 1-1/4" .045" Yellow 10
49120 5" x 5" 1-5/8" .020" Blue 10
49140 5" x 5" 1-5/8" .045" Yellow 10
Sof’ Shoe shim Catalog Products
To link to the Precision Brand Sof’ Shoe shim catalog page click here.
•Four motor shim sizes
2”, 3”, 4” & 5”
•Two thicknesses
.020”=Blue & .045=Yellow
Precision Brand Products, Inc.
2250 Curtiss Street, Downers Grove, IL 60515 USA
Phone: (630) 969-7200 (800) 535-3727 FAX: (630) 969-0310
E-Mail: [email protected]
web: www.precisionbrand.com
To download a Sof’ Shoe brochure click here
Precision Brand Products, Inc.
2250 Curtiss Street, Downers Grove, IL 60515 USA
Phone: (630) 969-7200 (800) 535-3727 FAX: (630) 969-0310
E-Mail: [email protected]
web: www.precisionbrand.com
To download a Sof’ Shoe brochure click here
