Walkersele® radial lip seals

Ultraglide reformulated-HNBR elastomer

• For high speeds in abrasive environments.
• Highly extended sealing life with many fluid media.
• Low friction material for improved running.
• Improved heat dissipation for high efficiency sealing.

Aflas^® (FEPM) elastomer

• Long-term operation with hot aggressive chemicals.
• Resists bleaching agents used in dewatering presses in pulp and paper plant.
• Construction: rigid back of fibre-reinforced Aflas^®, flexible lip of Aflas^®. 

• Standard material for most Walkersele^® applications.
• Suitable for water and majority of oils and greases.
• Construction: flexible back of NBR-proofed fabric, lip of NBR.

M5 - butyl (IIR) elastomer

• Often specified for its chemical compatibility.
• Resistant to silicone oils and greases, acids, alkalis, salt solutions, alcohols, glycols... 
• Construction: flexible back of butyl-proofed fabric, lip of butyl. 

M6 - nitrile (NBR) elastomer

• Most popular material for self-retaining seals in open housings.
• Suitable for use with most oils and greases.
• Construction: nitrile NBR with steel band encapsulated in its back.

M8 - fluoroelastomer (FPM/FKM) 

• High working temperature material for self-retaining seals in open housings.
• Excellent resistance to lubricating oils, fuels, etc...
• Construction: fluoroelastomer with steel band located in its back.

M9 - fluoroelastomer (FPM/FKM)  

• For high speeds and high working temperatures.
• Suits housings fitted with retaining plates.
• Construction: back of fluoroelastomer-proofed synthetic fibre, lip of fluoroelastomer. 

Fluolion^® (PTFE) material 

• Suitably approved virgin PTFE for duties in food & chemical processing sectors.
• Suits housings fitted with retaining plates.
• Construction: PTFE machined to Walkersele^® D6 design.

Our most popular design

• Minimal heat generation and shaft wear.
• Flexible lip to accomodate shaft eccentricity.
• Fabric-backed version can be supplied in split form and as Walkersele^® OSJ-2 for On-Site Joining.
• Standard inch and metric sizes ex-stock.

Pressure resistant lip seal

• Flexible and robust lip maintains contact on eccentric shafts.
• Maximum operating pressure: 400kPa without profiled lip support plate. 
• Available in self-retaining or plate-retained forms.
• Fabric-backed version available as Walkersele^® OSJ-2 for On-Site Joining.

For aggressive environments

• Walkersele^® D6 design with dust lip incorporated for simultaneous fluid containment and dirt exclusion.
• Needs less space than double-seal arrangement.
• Fabric-backed version available as Walkersele^® OSJ-2 for On-Site Joining. 

Original design modified for aggressive environments

• Exceedingly well-proven design of lip seal.
• Modified Aflas^® version now used on dewatering presses at pulp and paper plant.
• Fabric-backed version available as Walkersele^® OSJ-2 for On-Site Joining.

Alternative design with auxiliary dust-lip

• Similar to D6/DL - providing simultaneous fluid containment and dirt exclusion. 
• Alternative profile with dust lip incorporated in overall depth of seal.
• Fabric-backed version available as Walkersele^® OSJ-2 for On-Site Joining. 

Compact design for limited housing space

• Very compact seal used where space is limited.
• Feathered lip needs no spring for efficient operation.
• Can be supplied with external lip for duties where sealing on inner periphery is impractical.  

Exceedingly robust design for Tunnel Boring Machines

• Proven on projects such as Channel Tunnel and Sydney's Airport Link Railway.
• Made from tough, abrasion resistant elastomer-proofed fabric.
• Seal lip energised by an 'O' ring.
• Custom manufactured for each tunneling project. 

A speciality of James Walker's sealing experts

• New seals developed and tested for OEMs.
• Using state-of-the-art technology.
• Backed by unparalleled sealing expertise. 

Positive spring retention

• Ensures spring is properly located at installation.
• Reduces the possibility of spring becoming dislodged to create secondary damage if shaft or bearing exceeds normal operating limits.
• Allows effective spring coil action.