SEALMASTER ST-43 take-up bearing

SEALMASTER ST-43 belongs to take-up bearing, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for ST-43 and any equivalents.

A take-up bearing housing from the SEALMASTER ST line pairs an insert bearing with a housing that slides, so you can set and hold tension on a chain or belt drive. As the drive stretches over time, the take-up lets you reposition the shaft instead of living with the slack. These assemblies are common on conveyors, elevators, and other equipment where a loose drive element causes jumping, extra wear, and lost efficiency.

The part number starts with the fixed letters ST followed by a number: ST-8, ST-9, ST-10, ST-11, ST-12, ST-13, ST-14, and ST-15. That trailing digit tells you where the unit sits in the size range, and it tracks the dimensions of both the insert bearing and the housing. Reading the family from the lowest number to the highest gives you the progression from smaller to larger capacity. Shaft diameter, locking style, and service conditions are what you cross-reference to land on the right number.

You will find these units in food plants, cement operations, mining, grain handling, and aggregate processing. Typical installations include belt and chain conveyors, bucket elevators, storage-plant belts, and packaging lines, plus agricultural machinery and material handling equipment. Their job is to take up the length change that chains and belts develop in service, keeping enough tension that the drive neither slips nor overloads.

When specifying, confirm the shaft diameter, the insert bearing locking method (set screw, eccentric, or adapter), and the seal arrangement, since the seal governs how well the unit handles dust, water, and washdown. Mount the take-up in line with the drive and bolt it to a base that will not flex; misalignment shortens the life of the insert and the chain. Follow the manufacturer's lubrication guidance and re-grease on a schedule that matches the environment. Where contamination is heavy, a higher-protection seal is the better choice.

SEALMASTER ST take-up housings can be swapped for equivalent units from other manufacturers when the shaft diameter and mounting pattern line up. Matching numbers alone is not enough. Compare shaft diameter, hole spacing, center height, and insert type, and check the housing geometry and adjustment mechanism as well. MR Industrial Accessories can point you to the compatible alternative.

To get a quote, send the part number to MR Industrial Accessories by WhatsApp or email. A photo, or the shaft and housing dimensions, works too if the number is not at hand. Our team responds promptly and can suggest equivalents or help you choose the right unit. We supply customers throughout the United States and in several Latin American countries.