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McGill MR 12 N CAGEROL machined-race radial needle roller bearing, size 12, with cage-guided needle rollers and unsealed construction. Built from 52100 bearing steel for high radial load capacity in a compact section. Used in transmissions, planetary gearboxes, and oscillating linkages.
MODEL MR 12 N
Contact supplier for technical support on: 800-626-2120
$17.65 Each
Prices are subject to change
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Returnable: See conditions
Bore Size (in)
0.75
Bore Type
Straight
Cage Material
Steel
Component Type
Outer race only
Duplexing
No
Flanges
No flange
Full Complement/Caged
Caged
Hole Diameter (in)
0.08
Housing & Shaft Fillet (in)
0.04
Includes Inner Ring
No
Lubrication Hole Type
Lubrication groove and hole
Material
52100 Bearing Steel
Operating Temperature Range (F)
-20 to 250 °F
Outer Width (in)
0.75
Platform
Cagerol Bearing
Radial Clearance
Normal
Related Inner Ring
MI 8 N, MI 9 N
Retainer
Yes
Rolling Element
Needle Roller
Seal Type
Unsealed
Sealed
None
Series
Narrow
Speed [Max] Grease (RPM)
13000
Speed [Max] Oil (RPM)
16000
Width
1
Regal Beloit Mcgill&Reg; MR 12 N
UPC: 726166065089 | UNSPSC: 31171542 | GTIN:
Bearings > Roller Bearings > Needle Roller Bearings
McGill CAGEROL Unmounted Needle Roller Bearing, Heavy Duty Narrow, Series: MR Series, 1/2 in Bore Dia, 1-1/4 in Outside Dia, 1 Row, 3/4 in W, Unsealed Closure, 4990 lb Dynamic/5400 lb Static, 52100 Steel Bearing, Steel Cage, 16000 rpm Maximum, -20 to 250 deg F
Features:
- Machined outer race
- Needle roller with end relief
- Annular lubrication groove and holes
- Factory grease fill
- Narrow width
Specs:
| Cage Material | Steel |
|---|---|
| Bearing Material | 52100 Steel |
| Temperature Rating | -20 to 250 deg F |
| Load Capacity | 4990 lb Dynamic/5400 lb Static |
| Closure Type | Unsealed |
| Bore Diameter | 1/2 in |
| Outside Diameter | 1-1/4 in |
| Number of Rows | 1 |
| Maximum Speed | 16000 rpm |
| Width | 3/4 in |
| Type | Heavy Duty Narrow |
| Series | MR Series |
Packaging:
| Length | 1.75 in |
|---|---|
| Width | 1.0 in |
| Height | 1.75 in |
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.
#1496442
Brand
Koyo Bearing
Model
HJ-122012
#6377654
Brand
IKO Bearing
Model
BR122012
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