RINGSPANN SB 18 torque limiter

RINGSPANN SB 18 is a reference of torque limiter, within Power transmission. Request a quote for SB 18 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

RINGSPANN SB series torque limiters are safety components for power transmissions. They are installed between the motor and the machine to disengage the motion when torque exceeds the set value, preventing damage to gears, shafts, chains or pulleys. Their synchronous disengagement design allows fast, repeatable disconnection, with manual or automatic reset depending on the version. They are used in production lines, conveyors, mixers and equipment where an unexpected overload can stop the plant or break costly components.

The SB series designation is read by size: SB 4, SB 7, SB 11, SB 14, SB 18 and SB 22. Each number indicates a different torque capacity within the family. Any suffixes that may appear in the full code define mounting variants, reset type or connection style, but they should not be confused with the size. To identify the exact model your application needs, the best approach is to provide the full code shown on the nameplate or on the equipment drawing. With that data, at MR Accesorios Industriales we verify it and provide the corresponding alternative.

In Argentine industry, SB torque limiters are found in belt and chain conveyors, bucket elevators, mixers, mills, positive displacement pumps and machine tools. They also appear in packaging lines, food plants and chemical processes where a blockage or a sudden start can generate a torque spike. The function is always the same: to act as a mechanical fuse and protect the rest of the transmission. When they disengage, the equipment stops before gears, bearings or shafts are damaged.

To select a torque limiter, you must define the nominal working torque, the trip torque and the type of coupling to the shafts. Rotation direction, rotational speed and environmental conditions also matter: dust, humidity or temperature may require additional protection. During installation, it is key to align the shafts properly and respect the tightening torque of the fastening screws. Correct lubrication and sealing ensure that the disengagement mechanism works with repeatability. If the equipment operates with reversing rotation, this must be indicated when requesting a quote.

Torque limiters are interchanged between brands by torque capacity, shaft diameter and mounting type, not by the commercial code. RINGSPANN has its own nomenclature, and other firms use different designations for equivalent functions. Therefore, to replace an existing limiter, it is advisable to compare the flange dimensions, the bore diameter and the set torque. At MR Accesorios Industriales we can help you find the functional equivalent within the RINGSPANN line or among other alternatives we sell.

If you need a RINGSPANN SB series torque limiter, send us the code or model via WhatsApp. With that data and the characteristics of your equipment, we will send you a quote shortly. We can also advise you if you are replacing a component from another brand or if you need to define the size for a new transmission.