Rubber Bellows Mechanical Seal WM108

Rubber Bellows Mechanical Seal WM108 is identified by the use of a unique elastomer bellows or diaphragm for the secondary sealing part, which provides a high degree of axial flexibility to compensate for lack of concentration of the shaft & misalignment & wear due to thrust movement of the shaft. Rubber Bellows Mechanical Seal WM108 is the most common and generally used rubber bellow seal, due to its compact design, easy installation, mass production, and low cost.

Product Description

Designed by single or double, Wendong supply standard and OEM elastomer bellows seals to suit different applications and media in various industries with a variety of suitable materials. Most of Wendong rubber bellow seals can replace your pump seal easily. Because of its excellent performance in various industries, as well as it’s a compact design, cheap price, and variety, Rubber Bellows Mechanical Seal WM108 is the most commonly used industrial seals.

Advantages of Rubber Bellows Mechanical Seal WM108

● Low cost as it is produced in large mass around the world.

● No sliding Elastomer or O-ring. Nothing to “hang up” on the shaft.

● Easy to install: There are seldom any measurements to make or set screws to tighten to the shaft.

● Most designs are being sited next to the shaft shoulder or linked to the shoulder cast right into the impeller. It is therefore easily pushed on to the shoulder.

● Availability: You can purchase these seals from a variety of manufacturers, distributors, and bearing houses. Distributors have the replacement charts that will reference your present seal and propose an equivalent design.

● No shaft or sleeve fretting: When installed properly the seal cannot fret or damage a shaft or sleeve because there is no relative movement between the rubber boot and shaft or sleeve.

Operating Limits of Rubber Bellows Mechanical Seal WM108

Pressure: ≤ 1MPa

Speed: ≤ 10m/s

Temperature: -30℃ ~+200℃

Combined Materials of Rubber Bellows Mechanical Seal WM108 

● Rotary Ring (Plastic Carbon/ Carbon/Sic/tc)

● Stationary Ring (Ceramic/Sic/tc)

● Secondary Seal(nbr/Epdm/VITON)

● Spring & Other Parts(Sus304/Sus316)



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WenDong specializes in produce mechanical seals and custom mechanical seals solutions. By utilizing our extensive expertise, we can provide a complete solution to your challenge.

Chehe Industrial Park Shiqi Town Ningbo Zhejiang, China


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