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The McGill MR 40 RS is a CAGEROL machined-race radial needle roller bearing (size 40) with cage-guided needle rollers and a rubber lip seal on one side. Built from 52100 bearing steel for high radial load capacity in a compact section. Used in transmissions, planetary gearboxes, and oscillating linkages.
MODEL MR 40 RS
Contact supplier for technical support on: 800-626-2120
$199.16 Each
Prices are subject to change
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Returnable: See conditions
Bore Type
Straight
Cage Material
Steel
Duplexing
No
Flanges
No flange
Full Complement/Caged
Caged
Height
3.31
Length
3.31
Lubrication Hole Type
Lubrication groove and hole
O.D. (in)
3.25
Radial Clearance
Normal
Related Inner Ring
MI 31, MI 32, MI 34
Seal Type
Rubber Lip
Sealed
Sealed - One Side
Separable
Nonseparable
Static Load Rating (lb)
42900
Regal Beloit Mcgill&Reg; MR 40 RS
UPC: 726166067670 | UNSPSC: 31171542 | GTIN:
Bearings > Roller Bearings > Needle Roller Bearings
McGill® CAGEROL® Unmounted Needle Roller Bearing, Heavy Duty Standard, Series: MR Series, 2-1/2 in Bore Dia, 3-1/4 in Outside Dia, 1 Row, 1-3/4 in W, Double Sealed Closure, 23400 lb Dynamic/42900 lb Static, 52100 Steel Bearing, Rubber Seal, Steel Cage, 1530 rpm Maximum, -20 to 250 deg F
Features:
- Machined outer race
- Needle roller with end relief
- Annular lubrication groove and holes
- Factory grease fill
- Double seal with both seal lips turned out
Specs:
- Cage Material: Steel
- Bearing Material: 52100 Steel
- Temperature Rating: -20 to 250 deg F
- Seal Material: Rubber
- Load Capacity: 23400 lb Dynamic/42900 lb Static
- Closure Type: Double Sealed
- Bore Diameter: 2-1/2 in
- Outside Diameter: 3-1/4 in
- Number of Rows: 1
- Maximum Speed: 1530 rpm
- Width: 1-3/4 in
- Type: Heavy Duty Standard
- Series: MR Series
Packaging:
- Length: 3.31 in
- Width: 1.81 in
- Height: 3.31 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.
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