DID 60 standard roller chain - Big Bike Webshop

For Use at High-temperature
Chains strength is diminished by hightemperature
atmosphere, direct conveying
of high-temperature loads, or radiated heat,
etc. The service limit at high-temperature
depends not on the temperature of the
service environment but the temperature and material of
the chain body.
Following conditions may occur when chains are used
at high-temperature:
1) High temperature brittleness and fracture by lowered
hardness of heat treated material
2) Brittleness caused by carbide precipitation
3) Abnormal wear by scale
4) Fatigue fracture caused by repeated thermal shock
(cooling and expansion)
5) Abnormal wear due to an increase in the coefficient of
friction
6) Creep fracture
7) Fracture due to thermal fatigue of welded area
8) Effects caused by thermal expansion
¡Stiff links and rotation failure due to decreased clearance
¡Fatigue fracture due to lowered fitting force
9) Lubrication failure and stiff links due to deterioration
and carbonization of lubricating oil
Grease excellent in heat resistance include those
based on silicon, graphite or molybdenum disulfide.
For use at high-temperature, high-temperature resistance
bearings and stainless steel bearings are recommended.
For Use at Low-temperature
When using conveyor chains at lowtemperature
such as in a refrigerator or in a
cold atmosphere, the following conditions
may occur.
1) Low temperature brittleness
In general, a material is embrittled at low-temperature
and shock resistance is lowered. This phenomenon is
called low-temperature brittleness, and the degree of
embrittlement differs from material to material.
The service limit of a conveyor chain depends on its
specifications.
Variations in material and heat treatment Service limit temperature
Standard
J,A
Wear resistance P,C,D -20°C
With stainless steel parts D1,D3,D5
Heavy-duty K,E -40°C
Stainless steel
S4,S5,SH
Stainless steel S3 -100°C
2) Influence of freezing
At low-temperature, bending failure, roller rotation failure,
fixing of chain, etc. may be caused by the freezing of
penetrated water or deposited frost in the clearance between
pins and bushings, bushings and rollers or inner plates and
outer plates. These conditions cause an overload to act on
the chain and drive, diminishing the life of the chain.
To prevent freezing, in general, it is recommended to fill
the clearances with a low-temperature lubricant suitable
to the service temperature to prevent water, frost, etc.
from penetrating the respective portions of the chain.
For lubrication, a silicon based grease is recommended.
For Use in Dusty Environment
When using chains in an environment of
dirt, sand, dust, etc., periodically wash and
lubricate the chain. For greasing, use a
grease gun to allow the lubricant to
sufficiently penetrate into the clearances
between pins and bushings, bushings and rollers, and
outer plates and inner plates. When using chains in a
highly abrasive environment, we recommend the following:
1) Select a conveyor designed to prevent the chains from
coming into contact with the abrasive loads, or cover
the chain.
2) Select a chain with the largest size possible to reduce
the face pressure of bearing portions such as between
pins and bushings.
3) Keep the chain speed as low as possible.
4) Make grease holes in the pins and bushings, and
lubricate with grease nipples.
(Consult us when drilling pins and bushings as they are
reinforced parts.)
For dusty environments and highly abrasive environments,
high wear resistant bearings such as chain, DJ, Diesten
and Dimec bearings are available.
For Use in Circumstances Exposed to Water or Sea Water Drops
When chains are exposed to rainwater or
sea water drops, lowering of strength and
brittleness by corrosion, sudden wear,
bending failure by rusting and roller rotation
failure etc. occur. In such cases, depending
on the situation, stainless steel or high guard chains or
chains with stainless steel parts are recommended. The
high guard chains are highly rated by our customers. For
using chains under water, see the following "For In-water
Use".
For In-water Use
When using chains in water or sea water,
brittle fracture and corrosion must be taken
into consideration in addition to the adverse
conditions stated in the above section. For
this purpose, we manufacture Water
Treatment Conveyor Chains including Traveling Water
Screen Transfer Chain, Rake Chain, Sewage Treatment
Chain, BT Bushing Chain for Water Treatment Drive Unit.
Chains with stainless steel parts, with specially coated
plates or stainless steel chains are recommended.
Furthermore, as corrosion resistant bearings which can be
used in-water, stainless steel, Diesten and Diemec
bearings are available.
Technical Data
Chain Selection
331