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Take-up bearing REXNORD ZST125115MM18
- Manufacturer Part Number
- ZST125115MM18
- Brand
- REXNORDOfficial brand
- Category
- Bearing housings
- Subcategory
- Bearing housings
- Series
- ZST
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Description
REXNORD ZST125115MM18 is a take-up bearing reference, within Bearing housings. Request a quote for ZST125115MM18 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The Rexnord ZST take-up bearing is a mounted bearing designed to maintain tension in chain and belt drives. It is installed on the slack side and allows tension adjustment without disassembling the system. Its cast housing and built-in bearing simplify assembly and reduce maintenance. MR Accesorios Industriales carries this line in Buenos Aires, Argentina, with technical advice to choose the right variant.
The ZST designation combines letters and numbers that identify the size and configuration of the take-up. In the examples ZST125110MM18 and ZST135125MM18, the first digits indicate main housing dimensions and mounting position, while the MM suffix indicates the sealing type or fastening variant. The final numbers complete the identification of the internal bearing. To select the correct model, it is essential to compare these dimensions with the shaft and the existing take-up.
These take-up bearings are used in chain conveyors, bucket elevators, belt conveyors and drive systems in food, cement, mining and logistics plants. In Argentina, they are common in packaging lines, flour mills and material handling equipment. Their function is to compensate for chain or belt stretch and prevent jumping or premature wear.
For correct installation, verify shaft alignment with the take-up and the initial chain or belt tension. The bearing seal should be chosen according to the environment: if there is dust or humidity, a variant with a reinforced seal is advisable. Lifetime lubrication is common in these mounted bearings, but in severe applications periodic relubrication may be required. Follow the manufacturer's instructions for tightening the fastening bolts.
Rexnord take-up bearings are interchangeable with other brands of mounted bearings of equivalent dimensions, such as SKF, FAG or NTN, as long as shaft, height and fastening dimensions match. When requesting a quote, it is useful to compare the complete designation and the critical dimensions. MR Accesorios Industriales can indicate the compatible alternative if you cannot find the exact code.
If you need a take-up bearing for your application, send the code or dimensions via WhatsApp to MR Accesorios Industriales. We will quote you promptly and advise you so that the replacement is the correct one.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 115.00 mm
Frequently Asked Questions
- What does the ZST acronym mean in Rexnord take-ups?
- ZST identifies the Rexnord series of mounted take-up bearings. Within the series, the numbers and letters that follow indicate size, sealing type and mounting configuration. Each complete code defines the dimensions and the specific variant.
- How do I choose the right ZST take-up bearing for my machine?
- You need to know the shaft diameter, the distance between fastening centers and the required sealing type. With that data, you compare the complete designation. If you have the original code, send it and we will indicate the equivalent reference.
- Are Rexnord ZST take-ups compatible with other brands?
- Yes, they are interchangeable with mounted bearings of similar dimensions from other brands, as long as shaft, height and fastening dimensions match. It is important to verify tolerances and the sealing type to ensure correct operation.

