AutomationDirect IronHorse HGR-37-005-A, User Manual

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Chapter 2: Specifications
Page 2–7 IronHorse® Helical Gearbox User Manual – 1st Ed. Rev. B
IronHorse Cast-Iron Helical Gearbox Specifications (continued)
IronHorse Cast-Iron Helical Gearbox Specifications – Box Size 87
Part Number
Nominal Ratio Actual Ratio Output RPM @ 1750 rpm Input Nominal HP @ 1.0 Ser
vic
e
Fact
or
1
NEMA Mot
or F
rame
Output Shaft Diame
ter (in)
Input P
ower (hp)
Output T
orque (lb·in)
OHL (lb
s)
2
Ef
ficiency (%)
St
ages
Appro
x W
eigh
t (lb)
HGR-87-005-D
5:1 4.73 370
10.0 213/5TC
2-1/8
38.49 6120 1800 93.3
2
163
HGR-87-005-E 20.0 254/6TC 169
HGR-87-010-D
10:1 10.66 164 10.0 213/5TC 27.28 9790 2375 93.5
163
HGR-87-015-D 15:1 15.29 114 10.0 213/5TC 21.45 11040 2680 93.5
HGR-87-020-C
20:1 20.06 87
5.0 182/4TC
15.13 9915 2925 90.7
3
156
HGR-87-020-D 10.0 213/5TC 163
HGR-87-030-C
30:1 31.73 55 5.0 182/4TC 11.15 11550 3010 90.6
156
HGR-87-040-C 40:1 38.20 46 5.0 182/4TC 11.36 14170 3010 90.7
HGR-87-060-B
60:1 61.54 28
2.0 145TC
7.05 14170 3010 90.7
150
HGR-87-060-C
5.0 182/4TC 156
1) Nominal Motor HP is the highest HP 1800 rpm motor to be used with the gearbox under conditions of 1.0 service factor.
Gearbox input power capacity decreases as motor speed decreases and as service factor increases.
2) OHL= Overhung Load ratings are for forces perpendicular to the output shaft and located at the shaft midpoint, such as from
a gear, pulley, or sprocket with a belt or chain. Divide OHL ratings by the applicable OHL K factors shown separately in the
Selection Factors tables. OHL ratings should also be divided by applicable service factors.
3) Maximum Mechanical Ratings are limits based on strength and durability of gearbox components; applicable when operating
time is short and stopped time is greater than or equal to operating time. These ratings are applicable for 1.0 service factor
loads, and may require modification depending upon characteristics of the applicable driven loads. Refer to the “Service
Factors” table for more information.