Steel Ball Bearing

Shielded, Trade No. R4A-2Z, for 1/4" Shaft Diameter

Technical Drawing of Steel Ball Bearing, Shielded, Trade No. R4A-2Z, for 1/4" Shaft Diameter.

Image of Product. Side1 orientation. Contains SizingReference. Steel Ball Bearing, Shielded, Trade No. R4A-2Z, for 1/4" Shaft Diameter.

2-D PDF

00000 each

60355K271

In stock

60355K271

00000 each

QuantityEach

In stock

Select a compatible file type: Parasolid

Streamline your design process with our Solidworks Add-In

Available for Solidworks 2017 or newer.

For Shaft Type	Round
Bearing Seal Type	Shielded
Material	Steel
For Shaft Diameter	1/4"
For Housing ID	3/4"
Width	9/32"
Width Tolerance	-0.005" to 0"
ABEC Rating	1
Dynamic Radial Load Capacity	520 lb.
Maximum Rotation Speed	38,000 rpm
Temperature Range
Minimum	-58° F
Max.	302° F
Inner Ring Type	Standard
Bearing Trade Number	R4A-2Z
Ball Bearing Profile	Standard
Ball Material	Steel
Bearing Construction	Single Row
Bearing Type	Ball
Cage Material	Steel
For Load Direction	Radial
ID	0.25"
ID Tolerance	-0.0003" to 0"
Lubricant	Grease
Lubrication	Lubricated
OD	0.75"
OD Tolerance	-0.0004" to 0"
Radial Clearance	0.0003" to 0.0009"
Radial Clearance Trade Number	C3
Shaft Mount Type	Press Fit
Shield Material	Steel
Static Radial Load Capacity	200 lb.
System of Measurement	Inch
Country of Origin	Japan
DFARS Compliance	Specialty Metals COTS-Exempt
Export Control Classification Number (ECCN)	1C999
REACH Compliance	REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
RoHS Compliance	Not Compliant
Schedule B Number	848210.5044
U.S.–Mexico–Canada Agreement (USMCA) Qualifying	No

Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.

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.