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Ratchet Torque Limiter SA Series for PTO Drive Shafts

A ratchet torque limiter is a device that interrupts power transmission in the event of a torque spike or overload exceeding the setting. After removing the cause of the overload, the torque limiter will automatically re-engage. Ratchet torque limiters are typically used to protect appliances subjected to constant or alternating torque from overloads.

Ratchet Torque Limiter SA Series for PTO Drive Shafts

A ratchet torque limiter is a device that interrupts power transmission in the event of a torque spike or overload exceeding the setting. After removing the cause of the overload, the torque limiter will automatically re-engage. Ratchet torque limiters are typically used to protect appliances subjected to constant or alternating torque from overloads.

SA1 Series Ratchet Torque Limiter

Ratchet Torque Limiter for PTO Shaft

Series Max Torque(Nm) Spline A(mm) B(mm)
1SA1 400 1 3/8" Z6 138 21
2SA1 138
3SA1 149
4SA1 150

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=8)
  7. Housing with yoke
  8. Grease nipple

Ratchet Torque Limiter for PTO Shaft

Series Setting Torque(nm) Spline(female) Spline(male) A(mm) B(mm) C(mm)
SAS1 400 1 3/8'' Z6 1 3/8'' Z6 144 21 38

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=8)
  7. Housing with yoke
  8. Grease nipple

SA2 Series Ratchet Torque Limiter

Ratchet Torque Limiter for PTO Shaft

Series Max Torque(Nm) Spline A(mm) B(mm)
1SA2 800 1 3/8" Z6 156 21
2SA2 156
3SA2 167
4SA2 168
5SA2 172
6SA2 178
7SA2 189
7NSA2 175
8SA2 189

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=16)
  7. Housing with yoke
  8. Grease nipple

Ratchet Torque Limiter for PTO Shaft

Series Setting Torque(nm) Spline(female) Spline(male) A(mm) B(mm) C(mm)
SAS2 800 1 3/8'' Z6 1 3/8'' Z6 161 21 38

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=16)
  7. Housing with yoke
  8. Grease nipple

SA3 Series Ratchet Torque Limiter

Ratchet Torque Limiter for PTO Shaft

Series Max Torque(Nm) Spline A(mm) B(mm)
2SA3 1200 1 3/8" Z6 171 22
3SA3 182
4SA3 183
5SA3 187
6SA3 193
7SA3 204
7NSA3 190
8SA3 204

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=24)
  7. Housing with yoke
  8. Grease nipple

Ratchet Torque Limiter for PTO Shaft

Series Setting Torque(nm) Spline(female) Spline(male) A(mm) B(mm) C(mm)
SAS3 1200 1 3/8'' Z6 1 3/8'' Z6 164.5 22 38

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=24)
  7. Housing with yoke
  8. Grease nipple

SA4 Series Ratchet Torque Limiter

Ratchet Torque Limiter for PTO Shaft

Series Max Torque(Nm) Spline A(mm) B(mm)
5SA4 1600 1 3/8" Z6 206 22
6SA4 212 22

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=32)
  7. Housing with yoke
  8. Grease nipple

Ratchet Torque Limiter for PTO Shaft

Series Setting Torque(nm) Spline(female) Spline(male) A(mm) B(mm) C(mm)
SAS4 1600 1 3/8'' Z6 1 3/8'' Z6 186 22 38

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=32)
  7. Housing with yoke
  8. Grease nipple

SA5 Series Ratchet Torque Limiter

Ratchet Torque Limiter for PTO Shaft

Series Max Torque(Nm) Spline A(mm) B(mm)
6SA5 2000 1 3/8" Z6 231 22

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=40)
  7. Housing with yoke
  8. Grease nipple

Ratchet Torque Limiter for PTO Shaft

Series Setting Torque(nm) Spline(female) Spline(male) A(mm) B(mm) C(mm)
SAS5 2000 1 3/8'' Z6 1 3/8'' Z6 205 22 38

Ratchet Torque Limiter for PTO Shaft

  1. Circlip
  2. Retaining washer
  3. Dust guard ring
  4. Pushpin kit
  5. Hub
  6. Pawl kit(Qty=40)
  7. Housing with yoke
  8. Grease nipple

Advantages of Ratchet Torque Limiter

One of the biggest advantages of ratchet torque limiters is that they protect against overload. They work in a similar way to a 1:1 transmission when the torque is less than a predetermined value. Once the torque exceeds the limit, the limiter acts as a clutch and removes inertial energy from the drive train. They operate in milliseconds, making them suitable for a wide range of applications, including conveyors, assembly lines, textile machinery, and printing machines.

This torque limiter is usually made from hardened steel and is backlash-free. It features additional springs for adjusting the limit. It is available in several models, including pneumatic, hydraulic, and mechanical. It can be installed in a variety of positions, depending on the torque limiter's purpose. During normal use, it does not need to be adjusted. During a malfunction, the user can simply disconnect the auger to restore PTO functionality.

One of the advantages of the ratchet torque limiters for PTO drive shaft is that they don't waste any energy, allowing you to tow the vehicle. Without this technology, towing would be impossible. Besides, a PTO ratchet torque limiter is more durable than a manual limiter.

Another major benefit of a PTO ratchet torque limiter is that it offers a safety measure if a PTO-driven implement jams. A small farm tractor can give up when running at 3800 RPM, and if it suddenly stops, the PTO shaft can also fail. The torque limiting device is the first line of defense against such catastrophic failures, and this slip clutch device eliminates the need to change pins.

As a mature PTO shaft supplier, Ever-power offers torque limiters including the shear bolt torque limiter, the PTO overrun clutch, etc., besides ratchet torque limiters. Contact us now to get more information!

Ratchet Torque Limiter for PTO Shaft

 

Additional information

Edited

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Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages