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Reliable Cylindrical Fittings for Unstoppable Operations
Dekho Parkho Jaano

LOCTITE retaining products offer an inexpensive and effective method to secure bearings, bushes and cylindrical parts into housings or onto shafts. Being a liquid, retaining compounds take up the entire space between two close fitting cylindrical surfaces and harden into a tough thermoset plastic unitizing the assembly. This increases the maximum load transmission capability of the assembly eliminating fretting corrosion and expensive machining.

Benefits of LOCTITE Retaining Compounds
over Conventional Methods

LOCTITE vs Interference Fits

While interference fits might seem to deliver good contact, however, there is only 20%-40% actual metal-to-metal contact. LOCTITE can achieve 100% contact by filling the gap completely.

LOCTITE vs Keys and Splines

Keys and splines increase contact surface area, but do not eliminate the gaps which LOCTITE can fill completely.

LOCTITE vs Set Screws and Pins

Set screws and pins lock the surfaces together, but do not eliminate the gaps which LOCTITE can fill completely.

WHY CHOOSE LOCTITE RETAINING COMPOUNDS
  • Unitized assembly a. Fills all microscopic gaps between components doubling the strength of traditional fittings
  • No Fretting Corrosion a. Seals against corrosion and prevents micromovement
    b. Increases component life
  • Uniform Stress Distribution a. Eliminates failure and scrap due to stress cracking
    b. Ensures high torque transmission
  • Allow fitting of dissimilar metals a. Used for fitting dissimilar metals without the threat of galvanic corrosion
  • Reduce Costs: a. Allows for relaxed machining tolerances slashing machining costs by 30%
LOCTITE Solutions Across Industries
Cylindrical assemblies like shaft and bearing are key components of all rotational machinery in process and manufacturing plants. LOCTITE retaining compounds ensure that these vital components deliver consistent performance.

Industrial Manufacturing Maintenance

Industrial equipment manufacturers design and build machines that make other machines and end products.

LOCTITE products help industrial equipment manufacturers in maintaining smooth operations and high productivity of all machines.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 

Paper and Pulp

The harsh environment of the paper and pulp industry leads to a variety of maintenance challenges.

LOCTITE can help in eliminating the challenges and increase the productivity of machines.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 

Rubber and Plastic

The versatile end products manufactured put immense stress on the processing machinery.

LOCTITE products help the machines run smoothly under extreme working conditions, while maintaining high productivity.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 

Automotive Components

Auto component manufacturers need to deliver within tight deadlines and comply with strict product and process quality.

LOCTITE solutions help in fast repair and proactive maintenance of machines to ensure plant reliability.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 

Textiles

In order to keep up with the dynamic industry changes, the process machinery should run without unplanned breakdowns.

LOCTITE solutions help in corrective, preventive and proactive maintenance to ensure process reliability and high productivity.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 

Food and Beverage

Food and Beverage processing industry needs to comply with stringent regulations. Challenges such as loosening due to vibration, leakages and corrosion, threaten the everyday performance of processing machinery.

LOCTITE products help to combat the above challenges and increase machine reliability.

Problem Areas
  • Maintenance of Electric Motors

    Maintenance of Electric Motors

  • Maintenance of Pumps

    Maintenance of Pumps

  • Maintenance of Gearbox

    Maintenance of Gearbox

Read more
 
LOCTITE Retaining Compounds Products Range
Taking into consideration all the requirements of cylindrical fittings in industries, LOCTITE offers a wide range of retaining compound products better suited to fulfil your requirement.

Frequently asked questions

Here’s a list of queries with responses that might help you.

  What is the optimum fit for using anaerobic retaining compounds if I want to maximize the shear strength?

The optimum fit for thinner products (low viscosity) like LOCTITE 603 and LOCTITE 609 is 0.025 mm to 0.08 mm, and for thicker products (high viscosity) like LOCTITE 638 and LOCTITE 648 it is 0.05 mm to 0.1 mm.

  What is the recommended surface roughness for cylindrical components being fitted with LOCTITE retaining compounds?

The recommended range for surface roughness of the cylindrical parts is 0.8 micron to 3.2 micron. You can also go for surface roughness as high as 50 micron if eccentricity is not a concern.

  What is the correct procedure for applying LOCTITE retaining compounds?

For slip fit assemblies, apply to only one of the parts and assemble with a twisting/turning motion. For tight/close fitting assemblies with minimum clearance, apply to both parts.

  We need to lock bearings in place but there will be exposure to oils. Will LOCTITE retaining compound also seal the joint?

Yes, all LOCTITE retaining compounds offer the dual benefit of lock and seal.

  Can LOCTITE retaining compounds migrate to and jam other parts?

No. LOCTITE retaining compounds are thixotropic in nature, which means that they are quite viscous unless a shear force is applied. Hence, LOCTITE retaining compounds will not flow to other areas of the machinery.

  Do I need to use a Primer with a LOCTITE retaining compound?

We recommend the use of primer where both the parts come under the category of 'inactive surfaces'. These metals lack the iron or copper content and thus the metallic ions that are required to fully cure the product within 24 hours. These inactive surfaces include plated parts, stainless steel, galvanized steel and anodized aluminium to name a few. On the other hand, in case both or at least one part is an active metal, then there is no need to use a primer to ensure full cure, which is typically within 24 hours at room temperature.

  How can a cylindrical assembly fitted with LOCTITE retaining compound be disassembled?

To disassemble an assembly fitted with LOCTITE retaining compound, just pull the assembly apart mechanically. If necessary, apply localize heat (230 degrees celsius for 5 mins) and pull while the assembly is hot.

  We need to retain a worn shaft and also lock it into a housing or bearing. Are there any solutions for this?

Yes. With LOCTITE 660 retaining compound, shafts with radial gaps less than 0.5 mm can be locked. In case of badly worn shaft, the repair can be done with LOCTITE Superior Metal.

For Queries and More Details,

Email - customer.enquiries@henkel.com

Working hours: Monday to Friday, 9 AM to 5:30 PM (except public holidays)