Hartford’s lean, customer-focused
technical team is structured for fast,
intelligent response to questions, quotes
and consultations. Our manufacturing
teams provide expert design,
rapid prototyping, and a unique,
two-continent production capacity,
in Rocky Hill, Connecticut and
Shanghai, China.
Every facet of our manufacturing system is configured for highest repeatability,
highest productivity, and shortest lead times.
If you’re an engineer . . . let Hartford be your resource for detailed
ball and bearing performance data for the broadest range of industrial
and commercial applications, plus:
A US tech support team that is the most experienced
in the world for our product lines
US-based inventory management
US-based quality control systems that satisfy the most rigid
requirements for tolerance, metallurgy and surface characteristics
If you’re a purchasing professional . . . Hartford provides quick response
to your inquiry, exceptional manufacturing flexibility, and LCC (low cost
country) manufacturing to achieve best-possible overall value. We also
manufacture using branded material, including stainless steel ball orders
using TrimRite®.
Hartford has decades of LCC
manufacturing expertise. We also
maintain regional specialists who are
experts in managing local market
conditions. Our Commitment is to
put all of this to work to benefit
customers, and assure maximum
supply reliability, at the most
reasonable cost.
The Hartford Difference: we pair
this Commitment with the substantial
benefits of US responsibility for quality
and documentation, and with delivery
logistics no other ball and bearing
company can match.
High-performance bearings continue to be in high demand.
Production volumes of all varieties of high-efficiency bearings are a
Hartford specialty, and it’s important for purchasing managers to know
that all Hartford bearings, balls and rolling elements are subject to the
most rigorous quality processes, including APQP, PFMEA, PPAP, and SPC.
Hartford Technologies is ISO 9001:2000 and ISO/TS 16949:2002 certified,
and is certified by numerous automotive manufacturers as a Tier I and
II supplier. Visit our quality
page for details.
TrimRite is a registered trademark of CRS Holdings, Inc., a subsidiary of Carpenter Technology Corp.
Definition of the Day:
Austenitic stainless steel balls (“300 series”)
Austenitic stainless steel balls contain:
• A maximum of 0.15% carbon
• A minimum of 16% chromium • At least 6% nickel
Austenitic stainless steel comprises about 70% of all stainless steel
production. Its chromium and nickel content give it good corrosion
resistance; it also has low magnetic properties, and can be strengthened
by cold working. Austenitic grades retain their high strength properties
at high temperatures. Unlike ferritic, martensitic and precipitation
hardened steels, austenitic stainless can also be in used in sub-zero
working environments; the classic ductile-brittle transition of
body-centered cubic iron doesn’t apply to austenite.
Austenitic stainless steel balls cannot be heat treated.
Hartford offers these grades of austenitic stainless steel balls:
304 – this is the basic austenitic grade
(a.k.a. 18-8 due to its content of 18% chromium, 8% nickel)
304L – this is the low carbon option, often chosen to reduce problems
(i.e. carbide precipitation) associated with welding
316 – used in highly corrosive environments,
including many applications in food, wine-making,
medical, marine industries
321 – this grade contains titanium to reduce problems,
including intergranular corrosion, associated with welding.
Why Hartford?
Hartford Technologies is a leading b2b American manufacturer of custom ball &
roller bearings and bearing assemblies, precision balls, 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.
Hartford is a preferred supplier of precision balls sold in specialty quantities
through leading catalog companies for maintenance and prototype applications.
