| 301 stainless steel construction for strength and harsh environments |
Designs tested to over one million cycles |
| Operating temperatures possible from -60F to +185F |
Survives salt spray, dust, and condensing high humidity environments with proper bearings |
Choice of idler pulley profiles - flat, 2mm GT, 3mm GT,
.080 (MXL) or 3mm HTD |
Idler pulleys available with sealed ball bearings, self
lubricating plastic sleeves in aluminum pulleys or self
lubricating all plastic pulleys |
Ease of assembly with self locking, reusable Phillips
hardware in 6-32 threads |
Idler pulley retaining clip withstands minimum of
10 lbs (4.5 kg) pull force/side force on pulley |
| Downloadable CAD files for
tensioners and pulleys |
Dynamic tensioners include reference markings to aid
in setting belt tension during assembly and service |
Free access to York's engineering staff for answers to
design and application questions |
Conductive grease (sealed ball bearings) or static
dissipative (plastic) to prevent static electricity build-up
on belts |
| Special mounting bushing to aid in setting belt tension. |
Idler shafts are 416 stainless steel hardened to
Rockwell C 38-42 |
Idler Pulley/
Bearing Type |
Maximum
Operating
Temperature |
Minimum
Operating
Temperature |
High Dust Environments |
High
Humidity |
Relative
Cost |
Max Speed in
RPM |
Aluminum/
Ball Bearing |
185F - may
be limited by
belt max temp |
-60F |
Yes - Sealed
ABEC Bearings
With Conductive
Grease |
Yes |
More
Expensive |
Limited by
belt, not
bearing |
Aluminum/
Plastic Self Lubricating Sleeve |
185F - may be
limited by belt
max temp |
-40F |
OK in most
cases |
Yes |
Moderate -
good for small and medium
volumes |
Up to 4,500
RPM
continuous
with up to
9,000 RPM
peak. |
One Piece Self
Lubricating
Carbon Filled
Polycarbonate
UL V94-0
Flammability |
180F |
20F (consult
York for designs
down to -40F) |
Generally not for extremely
high dust areas |
Yes - to 95%
but must be
non conden-
sing |
Least Expensive.
Need high volumes if
custom mold required |
Up to 4,500
RPM
continuous
with up to
7,000 RPM
peak |
