Koyo
Koyo BH-912 needle roller bearing 9/16 in bore
Drawn-cup needle roller bearing with a 9/16 in bore, 13/16 in outside diameter and 0.75 in width, rated to 7,100 RPM and –22 °F to 248 °F
- 9/16 in bore fits compact shafts
- 13/16 in outside diameter suits tight housings
- .75 in width supports load in narrow spaces
- Full complement design maximises radial capacity
- 7,100 RPM rating handles high-speed operation
What this bearing is and who needs it
The Koyo BH-912 is a drawn-cup needle roller bearing with a 9/16 in bore and 13/16 in outside diameter. It uses a full complement of rollers in alloy steel rings and ships new with oil lubrication. Maintenance teams and machine builders use it where a compact radial bearing is required.
What to verify before ordering
Confirm the shaft diameter matches the 9/16 in bore and that the housing can accept the 13/16 in outside diameter. The bearing is open, so the assembly must supply its own sealing arrangement. Check that the IR-612 inner ring is available if the shaft surface does not meet the required hardness and finish.
Behaviour under sustained load
The bearing is rated for a maximum speed of 7,100 RPM and operates between -22 and 248 degrees F. Oil lubrication must be maintained continuously at speed; the open design does not retain grease. Plan for relubrication intervals that suit the actual running temperature and contamination level.
How it compares
Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.
- Price $11.99
- Cheaper than about 80% of the 693 comparable items (median $35.99).
Specifications
No published specifications for this item yet.
Questions about this item
What comes in the box and do I need to buy the inner ring separately?
The box contains the BH-912 drawn cup needle roller bearing only; the compatible inner ring IR-612 is sold separately.
Which bearing industry number matches the 9/16 in bore and 13/16 in outside diameter?
Bearing industry number 912 corresponds to the 9/16 in bore and 13/16 in outside diameter.
What does the 7,100 RPM maximum speed mean for my application?
The bearing is rated for continuous operation up to 7,100 RPM within the -22 to 248 °F temperature range.
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