Needle Rollers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Shaft Diameter For Shaft Diameter

	OD OD

	ID ID

	Width Width

	Thickness Thickness

	For Load Direction For Load Direction

	Radial
	Thrust
	Combined Radial and Thrust

	Bearing Type Bearing Type


Roller	Ball

	For Housing ID For Housing ID

	Seal Type Seal Type

Open

Sealed

	Cage Material Cage Material

Steel

Plastic

	Lubrication Lubrication

Required

Lubricated

	Dynamic Radial Load Capacity Dynamic Radial Load Capacity

10,000 lbs. or greater

	Maximum Speed Maximum Speed

40,000 rpm or greater

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Shaft Mount Type Shaft Mount Type

Press Fit

Slip Fit

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Construction Construction

Single Row

Triple Row

Double Row

	Static Radial Load Capacity Static Radial Load Capacity

Less than 1,000 lbs.

1,000 to 1,999 lbs.

2,000 to 9,999 lbs.

10,000 to 19,999 lbs.

20,000 lbs. or greater

	For Shaft Surface Smoothness (Ra) For Shaft Surface Smoothness (Ra)

	Seal Location Seal Location

Both Sides

One Side

	Specifications Met Specifications Met

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About Ball and Roller Bearings

Needle-Roller Bearings

Also known as drawn-cup roller bearings, these are our thinnest roller bearings. The outer ring is drawn out to form a lip that holds the bearing together.

Precision Needle-Roller Bearings

These bearings have higher radial load capacity, speed, and accuracy than standard needle-roller bearings.

Shaft Liners for Precision Needle-Roller Bearings

Adapt high-precision needle-roller bearings to use on unhardened, unground shafts.

One-Way Locking Needle-Roller Bearing Clutches

The needles in these bearings roll freely in one direction, but lock to transmit torque when the rotation of the shaft is reversed. Also known as drawn-cup roller clutches.

Needle-Roller Thrust Bearings

Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings.

Washers for Needle-Roller Thrust Bearings

Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.

Combination Ball/Needle-Roller Bearings

A built-in thrust ball bearing reduces wear from adjacent shaft components, while the needle-roller bearing supports radial loads.

Mounted Roller Bearings

Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.

Mounted Roller Bearings with Two-Bolt Flange

These roller bearings handle extremely high speeds for their small size.