Needle Roller Bearings
McGill MR 12 N
MR Series 500
MR 12 is also available as
Series
Narrow
Material
52100 Bearing Steel
Dynamic Load Rating (lb)
4,990
Includes Inner Ring
No
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- Machined race needle bearing
- Retained (caged) needle rolling elements
- Annular lubrication groove
- Narrow width configuration
Dimensions
| Dim. | Meaning | in (nom. / tol.) | mm (nom. / tol.) |
|---|---|---|---|
| D | Outside Diameter | 1.2500+0/-.0005 | 31.8+0/-.013 |
| HD | Radial Lub. Hole Diameter | .08 | 2 |
| Ro | Max Hsg Radius To Clear | 0.04 | 1 |
| W | .750+0/-.005 | 19.05+0/.13 | |
| d | Shaft Diameter | .7500+0/-.0005 | 19.1+0/-.013 |
Values as printed for MR 12 N. Figures are nominal; a tolerance is shown where the catalog prints one, and reference dimensions carry none. Verify critical dimensions before ordering.
- Material
- 52100 Bearing Steel
- Includes Inner Ring
- No
- Cage Material
- Steel
- Seal Type
- Unsealed
- Rolling Element
- Needle Roller
- Radial Clearance
- Normal
- Number of Rows
- 1
- Bore Type
- Straight
- Misalignment
- No
- Housing & Shaft Fillet (in)
- 0.04
- Static Load Rating (lb)
- 5,400
- Bore Size - Inch
- 0.75Shaft size chart
- Full Complement/Caged
- Caged
- Sealed
- None
- Duplexing
- No
- Dynamic Load Rating (lb)
- 4,990
- Speed (Max) Grease
- 13,000
- Speed (Max) Oil
- 16,000
- Platform
- Cagerol Bearing
- Related Inner Ring
- MI 8 N, MI 9 N
- Flanges
- No flange
- Standard Met
- ABMA, ISO, MS 51961-2
- Precision Rating
- RBEC-1
- Lubrication Hole Type
- Lubrication groove and hole
- Separable
- Nonseparable
- Component Type
- Outer race only
- Enclosure
- Open
- Retainer
- Yes
- Operating Temperature Range (F)
- -20 to 250 °F
- Outside Diameter (in)
- 1.25
- Outer Width (in)
- 0.75
- Radial Lub Hole Diameter (in)
- 0.08
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- McGill
- Mfg. Catalog Numberi
- MR 12 N
- Mfg. Part Numberi
- 5451260000
- GDS #i
- GDS-113711
- Categoryi
- Needle Roller Bearings
- UPCi
- 726166065065
- Seriesi
- Narrow
MR 12 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| MR 12 | Base configuration | $18.15 | View |
| MR 12 NThis part | Narrow width, unsealed only — typically 0.25 in narrower | $18.15 | |
| MR 12 RS | Single seal, lip turned out | $41.12 | View |
| MR 12 RSS | Double seal, both lips turned out | $27.99 | View |
| MR 12 S | Single seal, lip turned in | $75.05 | View |
| MR 12 SRS | Double seal, one lip turned in and one turned out | $38.54 | View |
| MR 12 SS | Double seal, both lips turned in | $26.64 | View |
| MR 12 RSS/MI 8 | Double seal, both lips turned out, Supplied with inner ring MI 8 | $271.98 | View |
Common Questions
Is this a genuine McGill part?
Yes. GDS Supply supplies the genuine McGill MR 12 N, manufacturer article number 5451260000. Its UPC is 726166065065.
