About Ball and Roller Bearings
More
Mounted Ball Bearings with Four-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Concentric lock bearings enable high running speeds while maintaining low levels of vibration; you must pair them with an adapter sleeve (sold separately). They’re good for applications where shafts rotate in both directions.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Concentric Lock | ||||||||||||||
| 25mm | 108mm | 108mm | 40.5mm | 13mm | 12mm | 83mm | 4,350 | 2,500 | 6,300 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 0000000 |
| 45mm | 143mm | 143mm | 53.1mm | 15mm | 16mm | 111mm | 7,850 | 5,200 | 4,000 | -20° to 210° | Self Aligning | Lubricated | 0000000 | 000000 |
Make up for imperfections and gaps between your bearing and shaft for a tight fit. These bearing adapter sleeves are the most common way to mount a bearing with a tapered bore onto a cylindrical seat. They work with both straight and stepped shafts. Secure using the included lock nut.
Compact-Base Mounted Ball Bearings
Also known as tapped-base bearings, these ball bearings mount to surfaces from the bottom through threaded holes. Because of their narrow profile, they’re commonly used in tight-clearance spaces, including systems where multiple shafts are mounted close together.
Set screw shaft-mount bearings secure to shafts when you tighten the set screw, with no need for an additional collar. Set screws cause some amount of marring on shafts.
Concentric lock shaft-mount bearings have a locking collar that centers and secures the shaft in the bearing bore. To install these bearings, tighten the single screw on the locking collar around its inner ring on your shaft. Their firm grip on shafts reduces vibration for quieter operation.
Overall | Mounting Hole | Radial Load Cap., lbs. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Thread Size  | Thread Pitch | Dp. | Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||||
| 25mm | 36.5mm | 71.4mm | 76.2mm | 38.1mm | 3/8"-16 | __ | 12.7mm | 50.8mm | 2,800 | 1,650 | 6,350 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 0000000 |
Shaft Mount Type: Concentric Lock | ||||||||||||||||
| 1 7/16" | 1 7/8" | 3 3/4" | 4 1/4" | 1 7/8" | 1/2"-13 | __ | 0.75" | 3 1/4" | 5,780 | 3,490 | 6,500 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 000000 |
| 1 15/16" | 2 1/4" | 4 5/8" | 5 1/2" | 2" | 5/8"-11 | __ | 0.875" | 4" | 7,880 | 5,210 | 5,000 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 000000 |
| 2" | 2 1/4" | 4 5/8" | 5 1/2" | 2" | 5/8"-11 | __ | 0.875" | 4" | 7,880 | 5,210 | 5,000 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 000000 |
| 30mm | 42.9mm | 86.5mm | 101.6mm | 38.1mm | M14 | 2 mm | 16mm | 65.9mm | 4,380 | 2,560 | 5,450 | -20° to 220° | Self Aligning | Lubricated | 00000000 | 000000 |