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TSNG

Split Double-Lip

Double-lip seals (LD) are designed to accommodate circumferential speeds of up to 8 m/s. During assembly, the space between the two sealing lips is filled with grease to ensure optimal sealing performance. The sliding surfaces on the shaft should be ground to enable low-friction operation.

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Installation types

Hydraulic sleeves

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.

Dismounting

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.

23
68
Sleeve are available with diameters ranging from 23 to 68 mm.

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Benefits

For Various Applications

Made from polyurethane

A wear-resistant material with excellent elastic properties.

Easy installation

Split design allows for particularly simple mounting.

Suitable for grease lubrication

Can be used at circumferential speeds up to 8 m/s.

Permissible shaft misalignment

Up to 1° for shafts with diameters up to 100 mm.Up to 0.5° for larger shafts.

Optimal sealing lip surface

Ground counterface surface, roughness Ra should not exceed 3.2 µm.

Material

Features of TPU

Thermoplastic Polyurethane (TPU) is a highly versatile elastomer that combines the durability of plastic with the flexibility of rubber. It is widely used in applications where materials need to offer flexibility, abrasion resistance, and impact strength. TPU can be easily processed via injection molding, extrusion, and 3D printing. Common uses include automotive components, sporting goods, medical devices, and phone cases. Due to its excellent abrasion resistance and elasticity, TPU is ideal for wear-resistant and flexible applications.

Mechanical properties
Up to

25-70MPa

Tensile strength
Up to

300-700%

Elongation strength
Up to

60-98A

Brinell hardness
Up to

100-100MPa

Elasticity modules
The TSNG Seal are manufactured from TPU as standard.

Interested?

TSNG
1. Generation
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Made from polyurethane

Easy installation

Suitable for grease lubrication

Permissible shaft misalignment

Optimal sealing lip surface

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