Spur Gear - up to 10,000 lbs

THERN® | SPUR GEAR HAND WINCHES

up to 10,000 lbs capacity


The Spur Gear Series of hand winches (up to 10,000 pounds) is designed to lift, lower, and position heavy loads, dependably. It is also a perfect solution for high-capacity stabilization and tensioning needs. The rugged design features heavy steel construction, machine-cut steel gears, bronze bushings, and radial ball bearings. You can count on long, rugged service life for many applications, like construction and aerospace.


 

Adjustable Handle

  • Adjustable handle provides ability to increase mechanical advantage or speed accordingly as load weight varies

Solid Steel Machine-Cut Gears

  • Precision-cut, zinc gears resist corrosion, increase efficiency, and provide precise operation for outdoor use

Steel Gear Guards

  • Steel-encased gear guard enhances safety

Welded Steel Drum

  • Robust drum design and large spool diameter minimizes drum wear and extends wire rope life

Automatic Weston-Style Brake

  • Spring-engaged, ratchet-pawl design offers additional reliability and positive load control for lifting and lowering
  • Enclosed (pawl and ratchet) envelope keeps brake clean, dry, and protected for reliable service and haptic feedback
  • Durable friction discs reduce wear and increase service life

*Available without brake for pulling applications only

Spring-Loaded Ratchets & Locking Mechanism

  • Ratchets automatically engage to hold loads securely when winch is not being operated
  • Frame-based, gear-locking mechanism enhances load control

 

Series

Imperial

Load Rating Brake Drum Capacity

 

Low-Speed Force to Lift 

1,000 lbs at Base Layer

M452 4,000 lbs No 300 ft 10 lbs
M452B 4,000 lbs Yes 300 ft 10 lbs
M492 10,000 lbs No 540 ft 8 lbs
M492B 10,000 lbs Yes 540 ft 8 lbs

Series

Metric

Load Rating Brake Drum Capacity

Low-Speed Force to Lift 

1,000 lbs at Base Layer

M452 1,810 kg No 91 m 5 kg
M452B 1,810 kg Yes 91 m 5 kg
M492 4,535 kg No 164 m 4 kg
M492B 4,535 kg Yes 164 m 4 kg

 

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