Vertical Pumps

Selecting the Right Bearings
to Improve Vertical Turbine Pump Reliability

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Thordon Bearings designs and manufactures a complete line of grease and oil-free vertical pump bearings.

Long Wear Life & High Abrasion Resistance
Dry Start Up Capability
Low Friction – No “Stick-Slip”
Sizing Flexibility – Easily Installed On-site

Pollution Free Operation – Wet or Dry
High Resilience & Impact Resistance
Reduced Starting Torque
Easy & Safe To Machine

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Thordon SXL

Preferred choice for dry start-up capability
Lower dry coefficient of friction typically 0.10 - 0.20
Working pressure to 10 MPa (1450 psi)
Wet or dry operation
High resistance to abrasion, shock loading and vibration

Composite (GM2401)

Composite

Made specifically for use in very abrasive water environments
Stiffer and at least twice the abrasion resistance of rubber
Lower coefficient of friction than rubber
Reduced maintenance downtime
Water lubricated - no grease
Easy installation

Thordon XL

Long life with low dry coefficient of friction
Good abrasion resistance
Optimum performance in clean water applications

ThorPlas-Blue

Thordon ThorPlas-Blue pump bearings

Dry start-up capability
Operates in water and chemicals up to 80°C (176°F) and 110°C (230°F) dry
Engineered thermoplastic capable of design pressures up to 45 MPa (6527 psi)
Very low wear in non-abrasive environments

ThorPlas- White

ThorPlas-White NSF

Ideal for Food Equipment, Drinking and Potable Water Applications
NSF/ANSI 51/61 and WRAS approval
Low fiction of operation
Very low wear
Good dry run capability due to built-in lubricants
Easy to machine - no nuisance dust
Easy to install

PT80

PT 80

Excellent mechanical property retention (in water), at higher temperatures
Internal lubricants provide dry run capabilities similar to Thordon SXL
Wear characteristics similar to existing Thordon elastomer grades
High abrasion resistance
Low coefficient to friction

Technical Papers

Selecting the Right Bearings to Improve Vertical Turbine Pump Reliability - Whitepaper PDF, 1.75 MB

Documents

ThorPlas-White Chemical Resistance Data PDF, 627.37 KB
ThorPlas-White Chemical Resistance Data PDF, 627.37 KB
Vertical Pump Bearings Brochure Portuguese PDF, 467.56 KB
ThorPlas-White for Drinking Water Applications Brochure PDF, 147.80 KB
Chemical Resistance Guide for Thordon Elastomers PDF, 186.75 KB
Vertical Pump Bearings Brochure PDF, 460.41 KB Overview of Thordon's complete line of oil and grease-free vertical pump bearings
ThorPlas-White Bearings for Drinking Water and Food Grade Equipment PDF, 109.35 KB ThorPlas-White
ThorPlas-Blue Chemical Resistance Data PDF, 708.85 KB

References

References and articles of Thordon pump bearings

Design

The final (fully finished) sizing of a Thordon elastomer or ThorPlas bearing can be determined by using the Thordon Bearing Sizing Calculation Program.

You cannot run the Thordon Bearing Sizing Calculation Program without a User Registration Number. Once you have a User Registration Number you can download the Program below and enter it when prompted.

Click here to Request a Bearing Sizing Program User Registration Number

If you have a Bearing Sizing Program User Registration Number, you can download the program here

Videos

Thordon SXL segmented axial and radial seals last longer and reduce life-cycle costs compared to carbon graphite seals. This video shows why Thordon SXL is so much easier to handle and install compared to carbon graphite.

Thordon SXL is a cross-linked elastomeric polymer alloy bearing with properties that provide resilience, toughness, and material memory in the marine, clean power, pump and industrial applications. This video tests the limits of how tough and resilient Thordon SXL really is. Try these easy tests with other bearing materials and see what happens.

Strategic Account Manager
Vertical Pumps
Keith Brand

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Thordon Hydro NewsWorks 2019

Thordon’s web-based newsletter specifically developed for hydro and clean power users of oil-free and grease-free bearings. This newsletter includes feature articles about multiple successful turbine guide bearing conversions, T-G DNALOP purchasing a small hydro power plant in Poland, and a recent success of Thordon installed in a tidal energy application.
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