# NTN ARP-1 Ultra-Class Pillow Block Unit - 1 inch Bore, Set Screw Lock, Cast Iron Housing - MROSupply.com

***NTN ARP-1 Ultra-Class pillow block unit with 1 inch bore and set screw lock in a cast iron housing. Designed for general industrial conveyor and machinery applications requiring reliable shaft support.***



## Product details:

- Catalog number: ARP-1
- SKU: 276888
- Price: ***$65.08*** Each
- Quantity: This vendor has a minimum order quantity of
2.Order minimum ($) may be applied.
Add desired QTY to cart and proceed to checkout to view minimum'

- Brand Minimum Order Quantity - 2
(This is the minimum order quantity if ordering this unit alone
from the vendor. Adding other products from the same vendor will reduce
the overall requirement. If adding multiple products from same vendor,
please add all products to cart to see total minimum.)
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [2-Bolt Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/pillow-block-bearings/2-bolt-pillow-block-bearings/)
    - [Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/pillow-block-bearings/)
    - [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: 2.006 lb


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


## Product attributes;

  
- A (in): 1.5000
  

  
- B (in): 1.0630
  

  
- Bearing Number: A-AR205-100D1
  

  
- Bearing number: A-AR205-100D1
  

  
- Bearing Type: Ball Bearing
  

  
- d (in): 1
  

  
- Dynamic Load Rating: 3150 lbf
  

  
- Dynamic load rating: 3150 lbf
  

  
- End Type: Open
  

  
- End type: Open
  

  
- F (in): 0.1378
  

  
- Finish/Coating: Black oxide
  

  
- H (in): 1 7/16
  

  
- H1: 0.5938 in
  

  
- H2: 2.7813 in
  

  
- Housing Construction: 1 Piece
  

  
- Housing construction: 1 Piece
  

  
- Housing Material: Cast Iron
  

  
- Housing material: Cast iron
  

  
- Housing Number: P205D1V50
  

  
- I.D.: 1 in
  

  
- J (in): 4-1/8
  

  
- L (in): 5.5000
  

  
- L1: 1.6563 in
  

  
- Locking Device: Set Screw
  

  
- Locking device: Set screw
  

  
- Lubrication: Relubricatable
  

  
- Max Rotational Speed: 5900 RPM
  

  
- Max Tightening Torque: 34 lb·in
  

  
- N (in): 0.4375
  

  
- N1: 0.8125 in
  

  
- O.D.: 2.0472 in
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Performance: Light Duty
  

  
- S: 0.2953 in
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Static Load Rating: 1760 lbf
  

  
- Static load rating: 1760 lbf
  

  
- Type: Pillow Block Unit
  

  
- Width: 1.063 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/27/68/276885/ock-Unit-with-Set-Screw--High-Base--ARP-Type_S_QR9sRQk.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/AR/ARP-1/bearingfinder_2d_pdf_fixed_ARP-1_MUVEazc.pdf)
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## 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.