► Finer | Imperial Seagull Oil Seals

Reliable Shaft Sealing for Imperial Applications Shaft sealing becomes critical once fluid loss or contamination threatens component life. Finer Imperial Seagull Oil Seals are manufactured for imperial-sized shafts, providing dependable sealing where rotating equipment relies on consistent lubrication retention & contaminant exclusion. In mechanical service environments these oil seals are...

Reliable Shaft Sealing for Imperial Applications

Shaft sealing becomes critical once fluid loss or contamination threatens component life. Finer Imperial Seagull Oil Seals are manufactured for imperial-sized shafts, providing dependable sealing where rotating equipment relies on consistent lubrication retention & contaminant exclusion.

In mechanical service environments these oil seals are commonly installed during work associated with Bearings, particularly when worn seals allow grease or oil to escape into housings or surrounding assemblies. Within workshops they’re also replaced during maintenance tied to Power Transmission, where seal integrity directly affects bearing life & shaft performance.

Failure escalation often begins with minor leakage. Industrial Shed stocks this imperial Seagull oil seal range for trade supply with bulk availability, fast dispatch & operational backing supported by Same day dispatch, helping technicians restore sealing before fluid loss causes secondary damage.

During strip-down inspections oil seals are frequently assessed alongside Shaft Collars & Locking Bushings, as worn sealing lips can indicate shaft wear misalignment or surface damage. In rotating assemblies they’re also reviewed during servicing linked to Alignment Tools (Laser, Dial, Manual), where poor alignment accelerates seal degradation.

What’s in This Collection:

► Imperial-sized oil seals
‣ Designed to suit imperial shaft diameters & housings

► Seagull sealing profiles
‣ Maintain lubrication retention while excluding contaminants

► Single & double lip configurations
‣ Support sealing under varied operating conditions

► Durable elastomer materials
‣ Resist wear heat & rotational friction

► Rotating equipment compatibility
‣ Used across gearboxes motors pumps & industrial machinery

 

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  • Seagull Oil Seal Double Lip 4" x 5-1/2" x 1/2" NBR | 4000-5500-500TC
    Seagull Oil Seal Double Lip 4" x 5-1/2" x 1/2" NBR | 4000-5500-500TC
    Oil Seal Seagull TC12303 (4 x 5-1/2 x 1/2") | 4000-5500-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $11.36
    $11.36
  • Seagull Oil Seal Double Lip 4" x 5-3/8" x 1/2" NBR | 4000-5375-500TC
    Seagull Oil Seal Double Lip 4" x 5-3/8" x 1/2" NBR | 4000-5375-500TC
    Oil Seal Seagull TC12302 (4 x 5-3/8 x 1/2") | 4000-5375-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $11.36
    $11.36
  • Seagull Oil Seal Double Lip 4" x 5-1/4" x 1/2" NBR | 4000-5250-500TC
    Seagull Oil Seal Double Lip 4" x 5-1/4" x 1/2" NBR | 4000-5250-500TC
    Oil Seal Seagull TC12301 (4 x 5-1/4 x 1/2") | 4000-5250-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $10.52
    $10.52
  • Seagull Oil Seal Double Lip 4" x 5-1/8" x 1/2" NBR | 4000-5125-500TC
    Seagull Oil Seal Double Lip 4" x 5-1/8" x 1/2" NBR | 4000-5125-500TC
    Oil Seal Seagull TC12300 (4 x 5-1/8 x 1/2") | 4000-5125-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $10.52
    $10.52
  • Seagull Oil Seal Double Lip 4" x 5" x 1/2" NBR | 4000-5000-500TC
    Seagull Oil Seal Double Lip 4" x 5" x 1/2" NBR | 4000-5000-500TC
    Oil Seal Seagull TC12299 (4 x 5 x 1/2") | 4000-5000-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.98
    $9.98
  • Seagull Oil Seal Double Lip 4" x 4-3/4" x 1/2" NBR | 4000-4750-500TC
    Seagull Oil Seal Double Lip 4" x 4-3/4" x 1/2" NBR | 4000-4750-500TC
    Oil Seal Seagull TC12298 (4 x 4-3/4 x 1/2") | 4000-4750-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.24
    $9.24
  • Seagull Oil Seal Double Lip 3-15/16" x 5" x 1/2" NBR | 3937-5000-500TC
    Seagull Oil Seal Double Lip 3-15/16" x 5" x 1/2" NBR | 3937-5000-500TC
    Oil Seal Seagull TC12297 (3-15/16 x 5 x 1/2") | 3937-5000-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.98
    $9.98
  • Seagull Oil Seal Double Lip 3-7/8" x 5-11/16" x 1/2" NBR | 3875-5687-500TC
    Seagull Oil Seal Double Lip 3-7/8" x 5-11/16" x 1/2" NBR | 3875-5687-500TC
    Oil Seal Seagull TC12296 (3-7/8 x 5-11/16 x 1/2") | 3875-5687-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $12.14
    $12.14
  • Seagull Oil Seal Double Lip 3-7/8" x 5-3/8" x 1/2" NBR | 3875-5375-500TC
    Seagull Oil Seal Double Lip 3-7/8" x 5-3/8" x 1/2" NBR | 3875-5375-500TC
    Oil Seal Seagull TC12295 (3-7/8 x 5-3/8 x 1/2") | 3875-5375-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $11.16
    $11.16
  • Seagull Oil Seal Double Lip 3-7/8" x 5-1/4" x 1/2" NBR | 3875-5250-500TC
    Seagull Oil Seal Double Lip 3-7/8" x 5-1/4" x 1/2" NBR | 3875-5250-500TC
    Oil Seal Seagull TC12294 (3-7/8 x 5-1/4 x 1/2") | 3875-5250-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $10.52
    $10.52
  • Seagull Oil Seal Single Lip 3-7/8" x 5" x 1/2" NBR | 3875-5000-500SC
    Seagull Oil Seal Single Lip 3-7/8" x 5" x 1/2" NBR | 3875-5000-500SC
    Oil Seal Seagull (3-7/8 x 5 x 1/2") | 3875-5000-500SC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $9.98
    $9.98
  • Seagull Oil Seal Double Lip 3-7/8" x 4-7/8" x 1/2" NBR | 3875-4875-500TC
    Seagull Oil Seal Double Lip 3-7/8" x 4-7/8" x 1/2" NBR | 3875-4875-500TC
    Oil Seal Seagull TC12291 (3-7/8 x 4-7/8 x 1/2") | 3875-4875-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.24
    $9.24
  • Seagull Oil Seal Single Lip 3-7/8" x 4-3/4" x 1/2" NBR | 3875-4750-500SC
    Seagull Oil Seal Single Lip 3-7/8" x 4-3/4" x 1/2" NBR | 3875-4750-500SC
    Oil Seal Seagull (3-7/8 x 4-3/4 x 1/2") | 3875-4750-500SC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $9.24
    $9.24
  • Seagull Oil Seal Double Lip 3-7/8" x 4-5/8" x 1/2" NBR | 3875-4625-500TC
    Seagull Oil Seal Double Lip 3-7/8" x 4-5/8" x 1/2" NBR | 3875-4625-500TC
    Oil Seal Seagull (3-7/8 x 4-5/8 x 1/2") | 3875-4625-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $7.94
    $7.94
  • Seagull Oil Seal Double Lip 3-13/16" x 4-7/8" x 1/2" NBR | 3812-4875-500TC
    Seagull Oil Seal Double Lip 3-13/16" x 4-7/8" x 1/2" NBR | 3812-4875-500TC
    Oil Seal Seagull (3-13/16 x 4-7/8 x 1/2") | 3812-4875-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $9.24
    $9.24
  • Seagull Oil Seal Double Lip 3-3/4" x 5-5/8" x 1/2" NBR | 3750-5625-500TC
    Seagull Oil Seal Double Lip 3-3/4" x 5-5/8" x 1/2" NBR | 3750-5625-500TC
    Oil Seal Seagull TC12289 (3-3/4 x 5-5/8 x 1/2") | 3750-5625-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $12.14
    $12.14
  • Seagull Oil Seal Double Lip 3-3/4" x 5" x 1/2" NBR | 3750-5000-500TC
    Seagull Oil Seal Double Lip 3-3/4" x 5" x 1/2" NBR | 3750-5000-500TC
    Oil Seal Seagull TC12288 (3-3/4 x 5 x 1/2") | 3750-5000-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.98
    $9.98
  • Seagull Oil Seal Double Lip 3-3/4" x 4-7/8" x 1/2" NBR | 3750-4875-500TC
    Seagull Oil Seal Double Lip 3-3/4" x 4-7/8" x 1/2" NBR | 3750-4875-500TC
    Oil Seal Seagull (3-3/4 x 4-7/8 x 1/2") | 3750-4875-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $9.24
    $9.24
  • Seagull Oil Seal Double Lip 3-3/4" x 4-3/4" x 1/2" NBR | 3750-4750-500TC
    Seagull Oil Seal Double Lip 3-3/4" x 4-3/4" x 1/2" NBR | 3750-4750-500TC
    Oil Seal Seagull TC12287 (3-3/4 x 4-3/4 x 1/2") | 3750-4750-500TC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣...
    $9.24
    $9.24
  • Seagull Oil Seal Single Lip 3-3/4" x 4-5/8" x 1/2" NBR | 3750-4625-500SC
    Seagull Oil Seal Single Lip 3-3/4" x 4-5/8" x 1/2" NBR | 3750-4625-500SC
    Oil Seal Seagull (3-3/4 x 4-5/8 x 1/2") | 3750-4625-500SC built for serious trade use. Reliable performance, zero fluff — fit for workshops across the Mornington Peninsula and beyond. Backed by Industrial Shed service and support.► Key Features‣ Trade-tough construction for daily use‣ Consistent...
    $7.94
    $7.94

Sealing Performance That Protects Bearings & Shafts

Oil seals rarely fail in isolation. Once a seal loses contact lubrication escapes contamination enters & bearing wear accelerates rapidly.

For this reason Finer Imperial Seagull Oil Seals are often selected after inspection of Bearings, particularly where seal failure has contributed to premature bearing damage rather than load issues. Correct seal replacement restores lubrication control & stabilises rotating assemblies.

Where vibration heat or uneven wear is present, shaft condition is sometimes verified using Alignment Tools (Laser, Dial, Manual), especially in applications where misalignment shortens seal life.

Consistent sealing depends on correct sizing & installation. Imperial oil seals must seat properly, maintain lip contact & tolerate shaft rotation without excessive friction. This collection supports reliable sealing, reduced maintenance intervals & extended component life.

Australian operating environments increase sealing demands quickly. Dust moisture temperature variation & long run times are common across workshops processing plants & material handling sites. Imperial Seagull oil seals suit these conditions where dependable sealing prevents costly downtime.

Every oil seal in this range is supported by Warranty & parts Support through Industrial Shed, giving trade buyers confidence beyond installation.

► Imperial sizing for correct shaft fit
► Proven Seagull sealing design
► Suitable for gearboxes motors & rotating equipment
► Supported by trade pricing bulk supply & fast dispatch

Ready to Stop Leaks & Protect Rotating Equipment?

Choose Finer Imperial Seagull Oil Seals from Industrial Shed to retain lubrication, exclude contaminants & extend component life. With trade pricing bulk supply & same day dispatch available this range supports reliable industrial maintenance.

Frequently Asked Questions

They seal rotating shafts to retain lubrication & prevent contamination in imperial-sized assemblies.

They’re designed for reliable sealing performance with proven lip geometry & material quality.

Replacement is recommended when leakage contamination or seal hardening is observed.

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