Tel: 860-571-3602  |  info@hartfordtechnologies.com
Tel: 860-571-3602  |  info@hartfordtechnologies.com

About Hartford Technologies

At Hartford, our precision ball & custom bearing assembly experts are committed to producing quality products for business to business, industry-specific needs worldwide. We’re fortunate to work with with OEMs, Tier 1, Tier 2, and both large and small, established and new corporations, in need of minor and major improvements…

High Quality Ball Manufacturing Process Overview

This video takes you step-by-step through how Hartford Technologies produces high quality precision balls at one of our manufacturing facilities in China.

Custom Bearing Retainer Assembly Machinery

Hartford Technologies specializes in bearing assemblies, including plastic injection molded retainers used in the automotive, agricultural and industrial sectors. Watch as we explain how they are manufactured.

Ultra Clean Parts Capabilities

Hartford Technologies has, since its founding, invested aggressively in tools and systems that assure exceptional quality and predictability. To meet requirements for ultra-clean parts, we have an advanced five-stage ultrasonic cleaning system; parts cleaning and packaging is performed in a Class 10,000 cleanroom. Ultrasonic cleaning works by rapidly oscillating between…

Needle Roller Bearing Assembly Machine

Hartford Technologies manufactures needle roller bearings for radial loads that demand a low profile. These are exceptionally easy to install. A needle roller bearing decreases friction and efficiently transmits torque in applications including off-highway and oil patch equipment, driveshafts, outboard engines, and air compressors. A high load needle bearing is…

Roller Gauging of Precision Balls

High hardness and dimensional stability make tungsten carbide balls the preferred choice for precision hydraulic valves, high-load bearings, inertial navigation systems, ball screws, linear bearings in slideways, gauging and checking instruments, and meters. Tungsten carbide balls are also used for ballizing, to work-harden, and to improve fretting fatigue strength. Tungsten…

Hartford Miniature Ball Capabilities

Hartford opened a specialized, modern state-of-the-art miniature ball facility in China. Here, we can process chrome (52100/GCr15) or 440C balls from 1mm to 3mm and from grades 10 to 50. The plant is ISO 9001 certified and can process 100 metric tons of balls per year. The miniature ball facility…

Pins General Production Video

Hartford custom-manufactures precision shafts and pins to your specifications, with length and diameter tolerances depending upon the size and end configuration. Crowned, rounded spherical, and chamfered ends (including chamfer on both ends) are available. A “pin” is a mechanical fastener that joins other parts together in an assembly. A pin…