PTO 드라이브 샤프트용 라쳇 토크 리미터 SA 시리즈

PTO 드라이브 샤프트용 라쳇 토크 리미터 SA 시리즈

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 ofRatchet 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 forPTO 구동축is 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 theshear bolt torque limiter, thePTO overrun clutch, etc., besides ratchet torque limiters. Contact us now to get more information!