# Timken ER12 Fafnir Wide Inner Ring Ball Bearing Insert, 3/4 in Bore, Setscrew Locking - MROSupply.com

***Timken ER12 Fafnir wide inner ring ball bearing insert with 3/4 inch bore and setscrew locking. Designed for use in pillow block or flange housings, this pre-lubricated insert provides reliable performance for conveyors, fans, and light-duty machinery.***



## Product details:

- Catalog number: ER12
- SKU: 5059695
- Price: ***$37.82*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [Inserts & Cartridges](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/inserts-cartridges/)
    - [Mounted Ball Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/)
    - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.346 lb
- Returns: Yes


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- 0.024 in Seal type: Narrow Shroud Series:Industrial Set screw size:M5x.8 Shaft size:0.7500 in Static load rating:6571.2 N
  

  
- 0.063 in Dynamic load rating: 14163.6 N
  

  
- 0.5 in Dimension: 18.26 mm
  

  
- 0.563 in Dimension Y: 16.61 mm
  

  
- 0.625 in Radius: 0.6 mm
  

  
- 0.719 in Dimension X: 14.35 mm
  

  
- 1.219 in Lubrication type: Relubricatable Number of set screws:2 O. D. type:Cylindrical OD Outside diameter:47 mm
  

  
- 1.850 in Outside ring width: 15.82 mm
  

  
- 1480 lbf Sub series: ER
  

  
- 3190 lbf Inner Ring Width B: 30.96 mm
  

  
- Angle between set screws: 90 Basic Outer Ring Size:204 Bearing Type:Ball Bearing Bore type:Cylindrical bore Center of bearing from end:12.7 mm
  

  
- Angle between Set Screws: 90 º
  

  
- Basic Outer Ring Size: 204
  

  
- Bearing Type: Ball Bearing
  

  
- Bore Type: Cylindrical bore
  

  
- Center of Bearing from End S: 12.7 mm 0.5 in
  

  
- Dimension D1: 52.4 mm 2.063 in
  

  
- Dimension F: 27.55 mm 1.078 in
  

  
- Dimension J: 5.13 mm 0.203 in
  

  
- Dimension M: 3.86 mm 0.156 in
  

  
- Dimension S1: 18.26 mm 0.719 in
  

  
- Dimension T: 1.07 mm 0.047 in
  

  
- Dimension X: 14.35 mm 0.563 in
  

  
- Dimension Y: 16.61 mm 0.063 in
  

  
- Dynamic Load Rating: 14163.6 N 3190 lbf
  

  
- Inner Ring Width B: 30.96 mm 1.219 in
  

  
- Lubrication Type: Relubricatable
  

  
- Material: Bearing Steel
  

  
- Number of Set Screws: 2
  

  
- O.D. Type: Cylindrical OD
  

  
- Outside Diameter D: 47 mm 1.850 in
  

  
- Outside Ring Width C: 15.82 mm 0.625 in
  

  
- Radius r: 0.6 mm 0.024 in
  

  
- Seal Type: Narrow Shroud
  

  
- Series: Industrial
  

  
- Set Screw Size: M5x.8
  

  
- Shaft Size d: 0.7500 in
  

  
- Static Load Rating: 6571.2 N 1480 lbf
  

  
- Sub Series: ER
  
## Product documents / software:

- [Fafnir Setscrew Locking Ball Bearings](https://documents.mrosupply.com/product_documents/50/59/5059695/er12_BEZ5c6U)
## Alternate products to `Timken ER12 Fafnir Wide Inner Ring Ball Bearing Insert, 3/4 in Bore, Setscrew Locking - MROSupply.com`:
- [SealMaster ER-12 701053 is a 0.75" bore mounted bearing insert (ER style) from the Gold Line. Features a 52100 bearing steel race with black oxide coating, single setscrew lock, and felt-labyrinth seal. Pre-lubricated for general industrial applications.](https://www.mrosupply.com/products/421725/as-markdown/)
- [SealMaster ERX-12 XLO 0.75" bore mounted bearing insert from the Gold Line. It features a 52100 bearing steel race with black oxide coating, set screw locking, and a cut-down felt labyrinth seal. This ER-style insert is designed for replacement in SealMaster mounted units.](https://www.mrosupply.com/products/2252132/as-markdown/)
- [AMI SER204-12 3/4" Normal Set-Screw - Wide](https://www.mrosupply.com/products/18129/as-markdown/)
- [PTI SER204-12 ball bearing insert with 3/4 in. bore, part of the Silver Series 200 series for normal duty applications. Features a steel cage and steel slinger with lip seal. Suitable for use in mounted bearing housings.](https://www.mrosupply.com/products/2203055/as-markdown/)
- [AMI SER204-12FS insert bearing with 3/4" (19.05mm) bore, set screw locking, normal duty rating. Features wide chrome steel inner ring for extended service life. Ideal for standard industrial applications requiring reliable shaft mounting.](https://www.mrosupply.com/products/17984/as-markdown/)

## Product's reviews:
- Best company to buy from - I always buy from MRO is a very reliable company to work with




## FAQ:

- How do I choose the right type of bearing for my application?: Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints.
For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials.
In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.