Deep Groove Ball Bearings

The most common type of bearing, Single Row Deep Groove
Ball Bearings, offer excellent radial load carrying capability with
some axial load carrying capacity. Single Row Deep Groove Ball
Bearings are supplied "open" to allow for oil or grease lubrication.
Sealed and shielded designs are also available for assembly and
other applications that are prone to contamination.

Standard Size Range
- Inner diameter: 10mm to 75mm
- Other sizes available on request

Minimum Order
- Up through 25mm 1,000 pieces
- Over 25mm 500 pieces

Standard Material
- Chrome steel
- Other materials available on request

Specifications

Miniature Ball Bearings

Deep Groove Ball Bearings

Hartford Technologies' Miniature Ball Bearings are offered in the
same configurations as the standard Single Row Deep Groove Ball
Bearings but in small sizes.

Hartford Miniature Ball Bearings offer excellent radial load
carrying capability with some axial load carrying capacity.
Most are supplied "open" to facilitate oil or grease lubrication.
Sealed and shielded designs are also available for assembly and
other applications that are prone to contamination.

Standard Size Range
- Inner diameter: 2mm to 9mm

Minimum Order
- All sizes 1,000 pieces

Standard Material
- Chrome steel
- Other materials available on request

Specifications

Heavy Load Ball Bearings

Deep Groove Ball Bearings

Hartford Technologies' Heavy Load Ball Bearings are similar
to the standard Single Row Deep Groove Ball Bearings except . . .
like Single Row they offer excellent radial load carrying capability
with some axial load carrying capacity. Heavy Load Ball Bearings
are most commonly supplied "open" to permit lubrication.
Sealed and shielded designs are also available for assembly and
other applications that are prone to contamination.

Standard Size Range
- Inner diameter: 17mm to 100mm
- Other sizes available on request

Minimum Order
- Up through 25mm 1,000 pieces
- Over 25mm 500 pieces

Standard Material
- Chrome steel
- Other materials available on request

Specifications

Applications: Heavy Load Ball Bearings
- Ag equipment
- Industrial pumps
- Air compressors

Double Row Deep Groove Ball Bearings

Deep Groove Ball Bearings

Similar to the Single Row Deep Groove Ball Bearings, Double Row
Deep Groove Ball Bearings provide additional radial load carrying
capability. Most commonly supplied "open" to allow for oil or
grease lubrication.

They are widely used in applications involving high rotational speed,
and where low vibration and low noise are required.

Standard Size Range
- Inner diameter: 10mm to 75mm
- Other sizes available on request

Minimum Order
- Up through 25mm 1,000 pieces
- Over 25mm 500 pieces

Standard Materials
- Chrome steel
- Other materials available on request

Specifications

Hartford Technologies is a leading American manufacturer of miniature ball bearings, heavy load ball bearings,
double row deep groove ball bearings, and precision rollers, pins, and shafts with manufacturing facilities in the U.S.
and China. We provide comprehensive value-added services, including application engineering and inventory
management, to a customer base that spans automotive to medical, leisure products to agriculture.

Hartford customers include leading OEMs, and diverse, specialized manufacturers on four continents. Our commitment
is to combine technical innovation with agility, responsiveness and institutional strength - strength that comes from a
conservative management team, global manufacturing and logistics capability, and more than 80 years of leadership.