Choosing a replacement bearing in the bearings, couplings, and power transmission category starts with one question: is your machine built around a cylindrical roller bearing or a 2-bolt bearing? The AXIS NU315 EMC3 and the Timken 2 Bolt Bearing QAF07046SM both come as new industrial replacement units, but they are not interchangeable parts. This head-to-head compares the listed prices, the bearing formats, and the applications each product is described for, so you can pick the one that fits the job.
Quick verdict
If your machine is set up for a cylindrical roller bearing, the AXIS NU315 EMC3 is the direct pick. If your equipment uses a 2-bolt bearing, the Timken QAF07046SM is the direct pick. The two replacement parts are not interchangeable, so let the bearing format drive the decision.
At a glance
Here is how the two replacement bearings compare:
| AXIS NU315 EMC3 | Timken QAF07046SM | |
|---|---|---|
| Brand | AXIS | Timken |
| Listed price | $206.87 | $150.00 |
| Relative price | ||
| Bearing type | Cylindrical roller bearing | 2-bolt bearing |
| Described use | Conveyors, drives, maintenance replacements | Mechanical power transmission, industrial automation, motion control |
Where each product wins
Where the AXIS wins: The AXIS description includes the dimensions that matter for fit: 75mm inside diameter, 160mm outside diameter, and 37mm length through bore. If you're replacing a unit on a conveyor or drive, those details help you match the part before you commit. The description also points to conveyors, drives, and maintenance replacements across manufacturing and material handling.
Where the Timken wins: The Timken description targets mechanical power transmission, industrial automation, and motion control systems. It brings the 2-bolt bearing format, which is the right configuration when your machine is built around that style of bearing. If your replacement spec calls for a 2-bolt bearing, the Timken is the one that matches.
Product notes
AXIS NU315 EMC3 Cylindrical Roller Bearing
The AXIS NU315 EMC3 is part of the NU300 Series and carries the fit information that makes ordering easier: 75mm inside diameter, 160mm outside diameter, and 37mm length through bore. That's a practical advantage when you're replacing a bearing on a conveyor or drive and you want to confirm the dimensions before you order. The description also positions it for maintenance replacements across manufacturing and material handling, so it fits the general industrial-repair workflow. The limitation is format-based: this is a cylindrical roller bearing, not a 2-bolt bearing, so it won't be a drop-in replacement for a machine that runs on a 2-bolt bearing. Choose it when the cylindrical roller format is what your equipment is designed around.
Timken 2 Bolt Bearing QAF07046SM
The Timken 2 Bolt Bearing QAF07046SM is listed at $150.00, making it the less expensive option in this comparison. Its description places it in the same machinery-repair field as the AXIS, with a focus on automated equipment and power transmission. What sets it apart is the 2-bolt bearing format: if your equipment is set up for that style, the QAF07046SM is the more direct match. The trade-off is that it is not a cylindrical roller bearing, so it cannot stand in for the AXIS when that specific format is required. For a machine built around a 2-bolt bearing, the Timken model is the cleaner replacement choice.
Final choice by use case
Choose the AXIS NU315 EMC3 when you need a cylindrical roller bearing with confirmed dimensions for a conveyor, drive, or maintenance replacement. Choose the Timken 2 Bolt Bearing QAF07046SM when your machine runs on a 2-bolt bearing for mechanical power transmission, industrial automation, or motion control. The bearing format, not the price alone, is what separates them.
