Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
When a motor stops running, the first instinct is to find the part that looks
Availability:
1 in stock
Ball bearing insert, 1-3/16 in bore, 2.835 in outside diameter, 1.688 in overall width, setscrew locking collar, medium duty, straight bore.
List Price
$45.88
1 in stock

1 in stock
On the Shelf & Ready to Ship
On all orders

No Risk, No Hassle
Also Available From:
| MFR / Brand | SealMaster |
|---|---|
| MPN | 3-13D |
| Model | 313 D |
| Bearing Type | INSERT, Felt Labyrinth Seal |
| ID | 1.1875 in |
| OD | 2.8350 in |
| Series | ER |
|---|---|
| Condition | New – Open box |
| Lubricant | Grease |
| Material | Chrome Steel |
| Base Number | 3-13 |
| Industry Terms | Bearing insert, ball bearing insert, setscrew collar insert, medium duty insert bearing, pillow block replacement insert, wide inner ring insert |
| Common Misspellings | 3 13 D, 313-D, 3-13-D, Seal Master 3-13D, Sealmaster 3l3D |
| Total Width | Outer ring width 0.9380 in |
| Condition Note | Made In USA |
| Overall Width | 1.6880 in |
| Bore Shaft Size | 1-3/16 in, straight bore |
| Locking Method | Setscrew locking collar |
| Mpn Variants | 3-13D, 313D, 3-13 D, 3-13 |
| Additional Attributes | Medium duty; extended inner ring carrying the setscrew locking collar; seats in SealMaster machined housings at 2.8350 in outside diameter |
| Rolling Elements | Balls |
| Limiting Speed | 4650 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Internal Clearance | Standard |
| Duty Type | Medium Duty |
| Locking Device | Set Screw |
| Harmonization Code | 84821000 |
| Part Number | 3-13D |
| Cross Reference 1 | 313D |
|---|---|
| Cross Reference 2 | 3-13 |
SealMaster 3-13D ball bearing insert. Bearing type: Mounted ball bearing insert. Bore / Shaft Size: 1-3/16 in, straight bore. Outside Diameter: 2.8350 in. Overall Width: 1.6880 in. Outer ring width: 0.9380 in. Locking Method: Setscrew locking collar. Internal Clearance: Standard. Rolling Elements: Balls. Number Of Rows: 1. Duty rating: medium duty.
3 — the SealMaster 3-series medium-duty insert, built to drop into SealMaster machined housings.
13 — the size within that series, giving the 1-3/16 in shaft and the 2.8350 in outside diameter.
D — the execution supplied on this insert.
Bore / Shaft Size: 1-3/16 in. Outside Diameter: 2.8350 in. Overall Width: 1.6880 in. Outer ring width: 0.9380 in. Internal Clearance: Standard.
The overall width runs well past the outer ring width, so the inner ring extends on both sides of the balls. That extension is what carries the setscrew locking collar and gives it a long grip on the shaft, which steadies the insert against tipping under a belt pull. Locking Method: Setscrew locking collar — the collar sits against the extended inner ring and its screws bite into the shaft, which is the quickest form to fit and to strip and holds well where rotation runs consistently in one direction. Standard internal clearance suits general plant service at ambient shaft and housing temperatures.
The insert seats in a SealMaster machined housing at this outside diameter, across the pillow block, flange and take-up ranges, and is replaced independently of the housing it runs in.
Unit Quantity: 1 Pc. One 3-13D insert with its setscrew locking collar, per unit.
Bore / Shaft Size: 1-3/16 in. Outside Diameter: 2.8350 in. Overall Width: 1.6880 in. Outer ring width: 0.9380 in.
MPN Variants: 3-13D, 313D, 3-13 D, 3-13. SealMaster runs the same 3-series medium-duty insert at other sizes, so the 3-1 is the 1 in shaft member of the same family. The SealMaster ER-13 is a separate insert series carrying the same 13 size code.
$481.31 Original price was: $481.31.$360.98Current price is: $360.98.
2 in stock
$35.05
2 in stock
$41.62
2 in stock
$54.41
4 in stock
A shipping cutoff banner measures a vendor’s dock. It tells
When a motor stops running, the first instinct is to find the part that looks
From Caligula’s luxury fleet to modern factories, this is the story of how a single
When sourcing a replacement bearing, you will often find both Timken and SKF options for
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
Sort
Brand
Price
MPN
Categories