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608Z

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NTN 608Z 608 series single-row deep groove ball bearing with an 8 mm straight bore. Features a single shielded (Z) design for protection against contaminants. Suitable for small electric motors, power tools, and light-duty rotating machinery.

MODEL 608Z

BRAND

SKU

5044785

UOM

each

$15.62 Each

Prices are subject to change

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Bearing Modification Services

Typically Ships in: 1 day

Returnable: See conditions

Technical Specifications

Type

Miniature / Extra Small Ball Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Type

Pressed

Cage Material

Steel

Ball Material

Steel

Limiting Speed - Oil

37000 RPM

Limiting Speed - Grease

32000 RPM

Precision

ISO Class 0

Configuration

One

Factor

20.0

Radial Internal Clearance

CN

Static Load Rating

315 lbf1400 N1.40 kN

Dynamic Load Rating

755 lbf3350 N3.35 kN

Enclosure

Single Shielded

Weight

0.024 lb0.011 kg

Operating Temperature Range

-40 to 250 F-40 to 120 C

Dimensional Specifications


Single Row Radial Ball Bearing - Single Shielded - Dimensions

d

0.3150 in8.000 mm

D

0.8661 in22.000 mm

B

0.2756 in7.000 mm

r

0.0118 in0.300 mm

da min

0.3937 in10.000 mm

da max

0.4803 in12.200 mm

Da max

0.7874 in20.000 mm

ras max

0.0118 in0.300 mm

How do I choose the right type of bearing for my application?

Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.

What is the difference between deep groove and angular contact ball bearings?

Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.

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Item must be unused.

Item must be in it's original package.