1389N57 Electrically Insulating Ball Bearings

$361.81 $556.63

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1389N57

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For Shaft Type	Round
Bearing Construction	Single Row
Bearing Seal Type	Shielded
For Shaft Diameter	40 mm
For Housing ID	90 mm
Width	23 mm
Width Tolerance	0 mm to 0.12 mm
ABEC Rating	1
Material	Steel
Maximum Rotation Speed	11,000 rpm
Lubrication	Lubricated
Temperature Range Minimum	-20° F
Temperature Range Max	245° F
Bearing Trade Number	6308-2Z
Ball Bearing Profile	Standard
Ball Material	Ceramic
Bearing Type	Ball
Cage Material	Steel
For Load Direction	Radial
Product ID	40 mm
ID Tolerance	-0.012 mm to 0 mm
Lubricant	Grease
OD	90 mm
OD Tolerance	-0.015 mm to 0 mm
Performance	Electrically Insulating
Radial Clearance	0.015 mm to 0.033 mm
Radial Clearance Trade Number	C3
Shaft Mount Type	Press Fit
System of Measurement	Metric
Country of Origin	South Korea
DFARS Compliance	Specialty Metals COTS-Exempt
ECCN	1C999
REACH Compliance	Not Compliant
RoHS Compliance	RoHS 3 (2015/863/EU) Compliant
Schedule B Number	848210.5052
Shield Material	Steel
Dynamic Radial Load Capacity	11,400 lb.
Inner Ring Type	Standard
Static Radial Load Capacity	6,900 lb.
Product Description	Protect bearings from stray currents. The ceramic balls insulate bearings from electrical charges in electric motors and power generators that can damage the inner ring over time. The balls also generate less heat than metal ones, so you don’t have to lubricate them as often to keep bearings running smoothly. Sealed — The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through. Steel — Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

34%

1389N57 Electrically Insulating Ball Bearings

$361.81 $556.63

Bulk orders will be discounted, please contact us.

Protect bearings from stray currents. The ceramic balls insulate bearings from electrical charges in electric motors and power generators that can damage the inner ring over time. The balls also generate less heat than metal ones, so you don’t have to lubricate them as often to keep bearings running smoothly. Shielded — The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat. Steel — Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust. ABEC Rating — Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

Product Number: 1389N57

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Description

For Shaft Type	Round
Bearing Construction	Single Row
Bearing Seal Type	Shielded
For Shaft Diameter	40 mm
For Housing ID	90 mm
Width	23 mm
Width Tolerance	0 mm to 0.12 mm
ABEC Rating	1
Material	Steel
Maximum Rotation Speed	11,000 rpm
Lubrication	Lubricated
Temperature Range Minimum	-20° F
Temperature Range Max	245° F
Bearing Trade Number	6308-2Z
Ball Bearing Profile	Standard
Ball Material	Ceramic
Bearing Type	Ball
Cage Material	Steel
For Load Direction	Radial
Product ID	40 mm
ID Tolerance	-0.012 mm to 0 mm
Lubricant	Grease
OD	90 mm
OD Tolerance	-0.015 mm to 0 mm
Performance	Electrically Insulating
Radial Clearance	0.015 mm to 0.033 mm
Radial Clearance Trade Number	C3
Shaft Mount Type	Press Fit
System of Measurement	Metric
Country of Origin	South Korea
DFARS Compliance	Specialty Metals COTS-Exempt
ECCN	1C999
REACH Compliance	Not Compliant
RoHS Compliance	RoHS 3 (2015/863/EU) Compliant
Schedule B Number	848210.5052
Shield Material	Steel
Dynamic Radial Load Capacity	11,400 lb.
Inner Ring Type	Standard
Static Radial Load Capacity	6,900 lb.
Product Description	Protect bearings from stray currents. The ceramic balls insulate bearings from electrical charges in electric motors and power generators that can damage the inner ring over time. The balls also generate less heat than metal ones, so you don’t have to lubricate them as often to keep bearings running smoothly. Sealed — The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through. Steel — Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.