SKU: 52463284497
double spur gear

double spur gear Thern Spur Gear Hand Winches - Double Reduction

$26.74 $29.71
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

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Description

double spur gear Thern Spur Gear Hand Winches - Double ReductionThern Spur Gear Hand Winches Double Reduction These Spur Gear Hand Winches (Double Reduction) by Thern Winches & Cranes are used for pulling, hoisting, or lowering. The capacity range on these double reduction Thern spur gear hand Winches is from 2000 Ibs all the way up to 10000Ibs. These Thern Spur Gear Hand winches are manufactured with machine cut spur gears for accurate long lasting service and are available in a variety of configurations to meet

Thern Spur Gear Hand Winches - Double Reduction

These Spur Gear Hand Winches (Double Reduction) by Thern Winches & Cranes are used for pulling, hoisting, or lowering. The capacity range on these double reduction Thern spur gear hand Winches is from 2000 Ibs all the way up to 10000Ibs.

These Thern Spur Gear Hand winches are manufactured with machine-cut spur gears for accurate long-lasting service and are available in a variety of configurations to meet the performance requirements of your manual pulling, hoisting, or lowering application.

When you require something to be lifted, lowered, or repositioned the Spur Gear Hand Winches from Thern can be the solution to your problem. The Thern Spur Gear Hand Winches are designed to be used to perform to a high standard. There is a range of Thern spur gear hand winches that you can choose from and the capacities and use vary between models so please check before you purchase the product.

The gear hand winches by Thern Winches & Cranes are designed to deliver excellent performance and long life, no matter what your application.

  • Up to 2000 lb (907 kg) capacity
  • Machine-cut spur gears
  • Variety of configurations
  • Stainless steel models available
  • Corrosion-resistant
  • Two-Year Limited Warranty
  • Automatic Brake Models provide positive load control for lifting and lowering operations. Brake models have PB suffix
  • Quick Disconnect Anchor 1 for quickly attaching or removing wire rope equipped with a swaged ball fitting
  • Bronze and Radial Ball Bearings provide smooth and efficient operation
  • Large Diameter Drums minimize wear to extend wire rope life
  • Gear Covers protect gears and help prevent injuries

Model

1 st layer loading capacity

(Ibs)

Mid drum loading capacity (Ibs)

Full drum Loading capacity

(Ibs)

Wire rope

Dia (in)

1 st layer drum (ft)

Mid drum (ft)

Full drum

(ft)

Sgl gear ratio

Force 3 to lift 1000 (Ibs)

Weight

(Ibs)

M4312

2000

1600

1200

3/16

¼

5/16

8

5

4

48

27

17

110

59

39

3.83.1

20

23

M4312PB

2000

1600

1200

3/16

¼

5/16

8

5

4

48

27

17

110

59

39

-

17

28

M4412

2000

1600

1200

3/16

¼

5/16

18

14

11

97

52

35

210

120

77

3.83.1

20

25

M412PB

2000

1600

1200

3/16

¼

5/16

18

14

11

97

52

35

210

120

77

-

17

30

M452

4000

3300

2500

¼

5/16

3/8

23

18

14

130

89

64

300

200

140

4.42.1

10

83

M452B

4000

3300

2500

¼

5/16

3/8

23

18

14

130

89

64

300

200

140

-

10

91

M452B-A

4000

3300

2500

¼

5/16

3/8

13

9

7

83

56

40

190

120

89

19.54.1

10

83

M492

10000

7400

5400

5/16

3/8

1/2

27

21

15

240

170

100

540

390

230

-

8

166

M492B

10000

7400

5400

5/16

3/8

1/2

27

21

15

240

170

100

540

390

230

-

8

173

M492-12

10000

7400

5400

5/16

3/8

1/2

46

37

27

380

270

160

850

610

360

-

8

175

M492B-12

10000

7400

5400

5/16

3/8

1/2

46

37

27

380

270

160

850

610

360

-

8

190

MB451

-

-

-

-

-

-

-

-

-

13

MB491

-

-

-

-

-

-

-

-

-

15

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52463284497

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4.4 ★★★★★
Based on 20 reviews
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Product Reviews
C
Verified Purchase
Corbin
Boise, US
★★★★★ 5
An Actual Nice Chair for a Decent Price. +2 for the Tool.
Color: Black Grey
Welp, My old chair finally broke, so It was time for a new one. I ended up coming across this chair here, and I couldn't really find anyone talking about it online. I decided to give it a shot since it was on a good sale for Christmas, going down to 99$. I'm going to be honest, I am pleasantly surprised. The cushioning for it is a little firm, but that is perfect for me. Its pretty average when it comes to office chairs, but having the added lower back support is a great touch. I have no complaints about it. The one thing that I am actually really happy about isn't on the chair. Don't get me wrong, over the week I have been using it, It has been nothing but great. That thing is the actual tool it came with. Its a basic Allen key, but the top of it is a molded handle instead of a "L" piece of metal. It made the already easy process of putting together this chair even better. Even after this chair has ran its course like all other chairs, I'm going to still use this tool. So yeah, I think 5 - stars pretty accurately describes how I feel about my chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
C
Verified Purchase
Christian Birkenberger
Lowell, US
★★★★★ 5
Comfortable chair that works great for long hours
Color: Black
I’ve been using this office chair for a few days and it’s been very comfortable for working and longer desk sessions. The high back design and ergonomic support help maintain good posture, while the cushioning stays comfortable throughout the day. The chair feels sturdy and stable, and the 330 lb capacity gives it a solid, durable feel. It also rolls smoothly and quietly, which is nice when moving around the workspace without creating a lot of noise. Overall, it was easy to assemble, looks professional, and offers great value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
V
Verified Purchase
Valerii Starikov
Whiting, US
★★★★★ 5
Very Comfortable Ergonomic Chair - Great for Long Work Days!
Color: Black, Color: Black
I’ve been using this ergonomic office chair for a couple of weeks now and I’m genuinely impressed. For the price, it offers excellent comfort and support. What I like: • Very comfortable padded seat and backrest — I can sit for 8+ hours without back pain. • Good lumbar support and adjustable height/armrests. • Holds up to 330 lbs easily (I’m 240 lbs and it feels very stable). • Smooth rolling wheels and sturdy base. • Easy to assemble (took about 20 minutes). The mesh back breathes well and doesn’t get hot. It looks professional in my home office too. Overall, this is a solid ergonomic chair. If you spend a lot of time at a desk, I highly recommend it. Would I buy it again? Yes, definitely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
O
Verified Purchase
Ordray
Omaha, US
★★★★★ 4
Great if you're average height.
Color: Black
Comfortable for the price. The seat could be a bit better, but for a budget friendly ergonomic chair, it's well made and has helped a lot with my back pain caused by my previous desk chair. Assembly wasn't terribly difficult, though I did have one screw with damaged threads. Luckily they ship spare screws in the kit, so that was a non-issue. Rollers work great on my small rug and hard flooring and don't tend to tangle cords or cables too much. Size wise, works great for my frame (5 ft 6 in) but for someone more than a few inches taller than myself, you should probably look at another chair.
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Reviewed in the United States on September 4, 2025
W
Verified Purchase
Wilbert Bean
Alexandria, US
★★★★★ 5
Great chair
Color: Black
I am very happy with my purchase. Easy to assemble but be aware your drill bits included with your set won't fit their screws. However, you can get a fair bit done with the drill and then use tool included to adjust. Super comfortable and exactly the right height for my desk. Highly recommend for quality exceeding price point.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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