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The Taconite seal is the most effective solution for protection against water, mud, and coarse contamination. The lubrication port allows the labyrinth to be filled with grease, further enhancing the sealing performance.
- Material: Grey Cast Iron GG20Brand: GLH
- Description: The TAC Taconite Seal by GLH is a highly effective sealing solution specifically designed for use with GLH SD Plummer blocks. The TAC seals are combination seals featuring a three-stage sealing mechanism.
- Stage 1: A TS-series labyrinth ring
- Stage 2: A radial shaft seal or a V-ring
- Stage 3: A grease chamber, which can be lubricated via a grease nipple for improved sealing performance.
The entire assembly is housed in a split grey cast iron housing (GG20) and is securely mounted to the SD housing. To facilitate this, the SD housing must be specially machined to allow the TAC seal to be flanged onto it.
The introduction of oil through the bores and grooves creates an oil film on the mating surfaces between the sleeve and the bearing. This reduces friction and significantly reduces the forces required for mounting. The bearing slides more easily onto the taper, minimising the risk of surface damage. In addition, independently operable oil inlets for the inner and outer oil grooves facilitate movement of the entire sleeve and bearing assembly after installation.
When oil is forced through the holes and grooves between the sleeve and bearing or between the shaft and sleeve, the bearing to sleeve and sleeve to shaft connections are loosened. As the press fit is released abruptly, the axial movement of the sleeve must be limited by a nut or stop.
- Triple Sealing System: Three-stage sealing system for enhanced protection:
- Stage 1: TS-series labyrinth ring
- Stage 2: Radial shaft seal or V-ring
- Stage 3: Grease chamber with lubrication capability
- Split Housing Design: The TAC seal is enclosed in a split grey cast iron housing (GG20) and is bolted directly onto the SD housing.
Special Machining Required: The SD housing needs to be specially prepared to allow the TAC seal to be flanged onto it.
- Grease Chamber: Lubrication is facilitated via a grease nipple, which helps maintain optimal sealing performance under challenging conditions.
- Harsh Environment Compatibility: Designed to perform in highly contaminated and extremely dusty environments.
- High-Speed Performance: Can operate at peripheral speeds up to 12 m/s.
- Temperature Range: Suitable for use in temperatures ranging from -40°C to +100°C.
Angular Misalignment Tolerance: Can accommodate angular misalignments of up to 0.2°.
- Components Included in TAC Seal Set:
- Split seal housing with a support surface for the axial V-ring
- Grease chamber
- Labyrinth grooves for the radial TS-labyrinth ring
GLH SD Plummer Blocks
Other Applications in Harsh and Contaminated Environments
- Performance Specifications:
- Peripheral Speed: Up to 12 m/s
- Angular Misalignment: Up to 0.2°
- Temperature Range: -40°C to +100°C
The TAC Taconite Seal is supplied as a complete set for one side of the housing. To install the TAC seal on GLH SD Plummer blocks, the SD housing must be specially machined to allow the TAC seal to be flanged onto it. The grease chamber is accessible via a grease nipple to ensure continuous lubrication and optimal performance.
For more information or to discuss specific requirements, please contact GLH Support.
Particularly advantageous in mining and similar environments.
Increased durability and maintenance-friendly due to the ability for re-lubrication.
Flexibility through the availability of two sealing types.
Axial labyrinth seal (TNC): Effective sealing solution for axial requirements.
Radial labyrinth seal (TAU): Optimal for radial sealing needs
The housing must be specially machined to accommodate this installation.
Cast iron is an iron-carbon alloy with a high carbon content, typically between 2.1% and 4%. It is known for its excellent compressive strength, heat resistance, and ease of casting, making it widely used in the construction and mechanical industries. Cast iron is also commonly used in manufacturing cookware and engine components. Despite being brittle and prone to breaking under tensile stress, cast iron provides high stability, durability under compression, and is cost-effective to produce.
Suitable for demanding and harsh operating conditions
Re-lubricatable labyrinth seals
Two high-performance seals for GLH housings
Seal is securely bolted to the housing
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