---
title: Keep a Spare, Save the Downtime - Blog - Admix
description: "If you have an Admix Rotosolver, Rotostat or Boston Shearmill, this article is for you! Here are three sound reasons for keeping a spare bearing frame and shaft assembly on your shelf: Should you have a failure, you can pull that unit from service and immediately install the"
---

[News and Blog - Admix ](https://admix.com/en/blog)

# [Keep a Spare, Save the Downtime - Blog - Admix](https://admix.com/en/blog/keep-a-spare-save-the-downtime-bearing-frame-shaft-assembly)

 Written by [Admix](https://admix.com/en/blog/author/admix) | September 22, 2020

If you have an Admix [Rotosolver®](https://admix.com/hygienic-sanitary-industrial-mixing-equipment/hygienic-high-shear-industrial-mixing), [Rotostat®](https://admix.com/hygienic-sanitary-industrial-mixing-equipment/rotostat-high-shear-emulsifier) or [Boston Shearmill®](https://admix.com/hygienic-sanitary-industrial-mixing-equipment/boston-shearmill-high-intensity-wet-mill-inline), this article is for you! Here are three sound reasons for keeping a spare bearing frame and shaft assembly on your shelf:

1. Should you have a failure, you can pull that unit from service and immediately install the replacement, therefore significantly reducing your downtime, and saving on expediting costs, if applicable.
2. You’ll have the ability to begin a [preventative maintenance program](https://admix.com/customer-success/aftermarket-services-industrial-mixing). Once a year you can remove the existing bearing frame and shaft assembly, install the spare, and return the removed unit for factory preventative maintenance rebuild. This preventative maintenance program will help extend the life of the major components of the bearing frame and shaft assembly.
3. When you send us your bearing frame and shaft assembly on a yearly basis as part of this program, you will maintain the warranty from manufacturer defects for the life of that bearing frame and shaft assembly.

[View full post](https://admix.com/en/blog/keep-a-spare-save-the-downtime-bearing-frame-shaft-assembly)

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