Vibra Trol™
OML*/OM Type Free Standing Spring Mount
Use: The economical OM series free standing
spring mounts are utilized to isolate floor mounted
equipment where transmission of noise and vibration
(below 1200RPM) is apparent.
Note: Not recommended when subject to
wind loads and weight changes.
Features: Spring is welded to lower load plate and
upper compression plate. Mounting is facilitated by an
adjustable leveling bolt. Base plate is furnished with a
skid-resistant neoprene backing, making anchoring
optional. Allows up to 2.10" (53.3mm) deflection (larger
deflection mounts available).
Typical Applications: Refrigeration compressors,
packaged air handling and refrigeration equipment,
centrifugal fans, close coupled and base mounted
pumps and similar apparatus. May also be used as a
vibration dampening device for pipe risers.
* OML Series are Lower profile.
Notes: To ensure minimum effective vibration control, the spring mount must have a static deflection at least three times (3X) greater
than the floor spans deflection.
Spring devices are stable with a vertical and horizontal spring constant equal to one (Kx/Ky=1). A 50% additional run-out from rated
capacity to solid load is also characteristic of spring type isolators.
L
A
B
Diameter Holes
W
W/2
D Diameter
Adjusting and Leveling Bolt
With 'C' Diameter Locking
Bolt.
H
Stable Steel Spring
Free And
Operating
Height.
Vibra Trol
Acoustical
Non-Skid Neoprene
Pad
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
255
Pipe Hangers & Supports
Vibra Trol™
OML*/OM Type - Free Standing Spring Mount
Spring
Deflection
Lbs.
(kN)
in.
(mm)
OML-1-101
25-50
(.11-.22)
1.20"
(30.5)
OML-1-102
50-100
(.22-.44)
1.20"
(30.5)
OML-1-103
100-150
(.44-.67)
1.20"
(30.5)
OML-1-104
150-250
(.67-1.11)
1.10"
(27.9)
OML-1-105
250-350
(1.11-1.55)
1.10"
(27.9)
OML-1-106
350-450
(1.55-2.00)
1.00"
(25.4)
OML-1-107
450-600
(2.00-2.67)
1.00"
(25.4)
OM-1-171
75-150
(.33-.67)
1.30"
(33.0)
OM-1-172
150-250
(.67-1.11)
1.30"
(33.0)
OM-1-173
250-350
(1.11-1.55)
1.30"
(33.0)
OM-1-174
350-500
(1.55-2.22)
1.30"
(33.0)
OM-1-175
500-600
(2.22-2.67)
1.10"
(27.9)
OM-1-176
600-750
(2.67-3.34)
1.10"
(27.9)
OM-1-177
750-900
(3.34-4.00)
1.10"
(27.9)
OM-1-178
900-1100
(4.00-4.90)
1.00"
(25.4)
OM-1-2010
75-150
(.33-.67)
2.10"
(53.3)
OM-1-2100
150-275
(.67-1.22)
2.10"
(53.3)
OM-1-2103
275-425
(1.22-1.90)
2.10"
(53.3)
OM-1-2200
425-500
(1.90-2.22)
2.10"
(53.3)
OM-1-2202
500-650
(2.22-2.90)
2.10"
(53.3)
OM-1-2203
650-775
(2.90-3.44)
2.10"
(53.3)
OM-1-2300
775-1000
(3.44-4.45)
2.10"
(53.3)
OM-1-2302
1000-1150
(4.45-5.11)
2.00"
(50.8)
Dimensions in Inches (mm)
L
W
H
A
Wt.
Each
B
C
D
Lbs.
(kg)
2.0
(.9)
3.0
(1.4)
12.0
(5.4)
41/2"
2"
35/8"
31/2"
9/16"
5/16"
1/2"
(114.3)
(50.8)
(92.1)
(88.9)
(14.3)
(7.9)
(12.7)
41/2"
2"
43/4"
31/2"
9/16"
5/16"
1/2"
(114.3)
(50.8)
(120.6)
(88.9)
(14.3)
(7.9)
(12.7)
61/4"
4"
75/8"
5"
9/16"
1/2"
3/4"
(158.7)
(101.6)
(193.7)
(127.0)
(14.3)
(9.5)
(19.0)
* OML Series are Lower profile.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Pipe Hangers & Supports
256
Vibra Trol
Rated
Load
Part
No.
Vibra Trol™
HMLE*/HME Type - Housed 1" (25.4mm) & 2" (50.8mm) Deflection Fail Safe Spring Mount
(External Adjustment Bolt)
Use: HM series housed spring mounts are
utilized to isolate floor mounted equipment where
transmission of noise and vibration (below 1200
RPM) is apparent. This type of mount is most
commonly used to support equipment on upper
floors where structural deflection may occur.
Features: Telescopic two-piece cast iron housing
to stabilize spring where external motion may
occur. Slotted mounting holes on base with skidresistant pad. Mounting is facilitated by an
adjustable leveling bolt. (If bolt mount is not
required, a skid-resistant pad on top load surface
is available in the HMLT/HMT series shown on
pages 259 & 260). Springs are color-coded for load
identification. Housing components are isolated by
rubber acoustical pads. Larger capacity mountings
are available.
Typical Applications: Compressors, air handling
units, centrifugal fans, pumps and other similar
applications. May also be used as a vibration
dampening device for pipe risers.
*HMLE Series are Lower profile.
Notes: To ensure minimum effective vibration control, the spring mount must have a static deflection at least three times (3X)
greater than the floor spans deflection.
Spring devices are stable with a vertical and horizontal spring constant equal to one (Kx/Ky=1). A 50% additional run-out from
rated capacity to solid load is also characteristic of spring type isolators.
L
F
A
B
W
W/2
Adjust mount for
minimum 1/4" to
maximum 1"
operating
clearance.
'C' Diameter Adjusting
and Leveling Bolt
H
Free and
Operating
Height
Stable Steel Spring
Vibra Trol
Acoustical Non-Skid
Neoprene Pad
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
257
Pipe Hangers & Supports
Vibra Trol™
HMLE*/HME Type Housed 1" (25.4mm) & 2" (50.8mm) Deflection Fail Safe Spring Mount
(External Adjustment Bolt)
Rated
Load
Spring
Spring
Dimensions in Inches (mm)
Spring
Color
Lbs.
(kN)
in.
(mm)
HMLE-1-101
Yellow
25-50
(.11-.22)
1.20"
(30.5)
HMLE-1-102
Blue
50-100
(.22-.44)
1.20"
(30.5)
HMLE-1-103
Brown
100-150
(.44-.67)
1.20"
(30.5)
HMLE-1-104
Black
150-250
(.67-1.11)
1.00"
(25.4)
HMLE-1-105
Gray
250-350
(1.11-1.55)
1.00"
(25.4)
HMLE-1-106
Red
350-450
(1.55-2.00)
1.00"
(25.4)
HMLE-1-107
Green
450-600
(2.00-2.67)
1.00"
(25.4)
HME-1-121
Black
45-90
(.20-.40)
1.40"
(35.5)
HME-1-122
Green
90-120
(.40-.53)
1.40"
(35.5)
HME-1-123
Yellow
120-175
(.53-.78)
1.40"
(35.5)
HME-1-124
Brown
175-250
(.78-1.11)
1.30"
(33.0)
HME-1-125
Red
250-330
(1.11-1.47)
1.30"
(33.0)
HME-1-126
Purple
330-450
(1.47-2.00)
1.30"
(33.0)
63/8"
25/8"
51/8"
51/2"
4"
(161.9)
(66.7)
(130.2)
(139.7)
(101.6)
HME-1-127
Blue
450-600
(2.00-2.67)
1.20"
(30.5)
HME-1-128
HME-1-129
Orange
600-750
(2.67-3.34)
1.20"
(30.5)
Pink
750-900
(3.34-4.00)
1.10"
(27.9)
HME-1-130
Gray
900-1100
(4.00-4.90)
1.00"
(25.4)
HME-1-131
Wht/Blk
1100-1300
(4.90-5.78)
1.00"
(25.4)
HME-1-132
Gold/Blk
1300-1500
(5.78-6.70)
0.90"
(22.8)
HME-1-221
Black
48-90
(.21-.40)
2.00"
(50.8)
L
W
H
F
A
Wt.
Each
B
C
Lbs.(kg)
51/8"
21/2"
33/4"
43/4"
31/2"
7/16"
3/8"
5.0
(130.2)
(63.5)
(95.2)
(120.6)
(88.9)
(11.1)
(9.5)
(2.3)
5/8"
1/2"
11.0
(15.9)
(12.7)
(5.0)
HME-1-222
White
90-120
(.40-.53)
2.00"
(50.8)
HME-1-223
Yellow
120-175
(.53-.78)
2.00"
(50.8)
HME-1-224
Brown
175-250
(.78-1.11)
2.00"
(50.8)
63/8"
25/8"
55/8"
51/2"
4"
5/8"
1/2"
11.0
(161.9)
(66.7)
(142.9)
(139.7)
(101.6)
(15.9)
(12.7)
(5.0)
HME-1-225
Red
250-330
(1.11-1.47)
2.00"
(50.8)
HME-1-226
Purple
330-450
(1.47-2.00)
2.00"
(50.8)
HME-1-227
Blue/Blk
450-600
(2.00-2.67)
2.00"
(50.8)
HME-1-228
Orn/Blk
600-750
(2.67-3.34)
2.00"
(50.8)
HME-2-225
Red
500-660
(2.22-2.93)
2.00"
(50.8)
HME-2-226
Purple
660-900
(2.93-4.00)
2.00"
(50.8)
93/4"
25/8"
53/4"
83/4"
73/8"
5/8"
5/8"
19.0
(247.6)
(66.7)
(146.0)
(222.2)
(187.3)
(15.9)
(15.9)
(8.6)
HME-2-227
Blue/Blk
900-1200
(4.00-5.34)
2.00"
(50.8)
HME-2-228
Orn/Blk
1200-1500
(5.34-6.67)
2.00"
(50.8)
*HMLE Series are Lower profile.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Pipe Hangers & Supports
258
Vibra Trol
Part
No.
Vibra Trol™
HMLT*/HMT Type - Housed 1" (25.4mm) & 2" (50.8mm) Deflection Fail Safe Spring Mount
(Skid Resistant Neoprene Top & Internal Adjustment Bolt)
Use: HM series housed spring mounts are
utilized to isolate floor mounted equipment where
transmission of noise and vibration (below 1200
RPM) is apparent. This type of mount is most
commonly used to support equipment on upper
floors where structural deflection may occur.
Features: Telescopic two-piece cast iron housing
to stabilize spring where external motion may
occur. Slotted mounting holes on base with
skid-resistant pad. Mounting is facilitated by an
internal adjustable leveling bolt. Springs are
color-coded for load identification. Housing
components are isolated by rubber acoustical
pads. Larger capacity mountings are available.
Typical Applications: Compressors, air handling
units, centrifugal fans, pumps and other similar
applications. May also be used as a vibration
dampening device for pipe risers.
*HMLT Series are Lower profile.
Notes: To ensure minimum effective vibration control, the spring mount must have a static deflection at least three times (3X)
greater than the floor spans deflection.
Spring devices are stable with a vertical and horizontal spring constant equal to one (Kx/Ky=1). A 50% additional run-out from
rated capacity to solid load is also characteristic of spring type isolators.
L
F
A
B
W
W/2
Acoustical Non-Skid Neoprene Pad
H
Adjust mount for
minimum 1/4" to
maximum 1"
operating
clearance.
Free and
Operating
Height
Stable Steel Spring
Vibra Trol
Acoustical Non-Skid
Neoprene Pad
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
259
Pipe Hangers & Supports
Vibra Trol™
HMLT*/HMT Type - Housed 1" (25.4mm) & 2" (50.8mm) Deflection Fail Safe Spring Mount
(Skid Resistant Neoprene Top & Internal Adjustment Bolt)
Rated
Load
Spring
Deflection
Spring
Color
Lbs.
(kN)
in.
(mm)
HMLT-1-101
Yellow
25-50
(.11-.22)
1.20"
(30.5)
HMLT-1-102
Blue
50-100
(.22-.44)
1.20"
(30.5)
HMLT-1-103
Brown
100-150
(.44-.67)
1.20"
(30.5)
HMLT-1-104
Black
150-250
(.67-1.11)
1.00"
(25.4)
HMLT-1-105
Gray
250-350
(1.11-1.55)
1.00"
(25.4)
HMLT-1-106
Red
350-450
(1.55-2.00)
1.00"
(25.4)
HMLT-1-107
Green
450-600
(2.00-2.67)
1.00"
(25.4)
HMT-1-121
Black
45-90
(.20-.40)
1.40"
(35.5)
HMT-1-122
Green
90-120
(.40-.53)
1.40"
(35.5)
HMT-1-123
Yellow
120-175
(.53-.78)
1.40"
(35.5)
HMT-1-124
Brown
175-250
(.78-1.11)
1.30"
(33.0)
HMT-1-125
Red
250-330
(1.11-1.47)
1.30"
(33.0)
HMT-1-126
Purple
330-450
(1.47-2.00)
1.30"
HMT-1-127
Blue
450-600
(2.00-2.67)
HMT-1-128
Orange
600-750
Dimensions in Inches (mm)
Wt.
Each
L
W
H
F
A
B
51/8"
21/2"
41/8"
43/4"
31/2"
7/16"
(130.2)
(63.5)
(104.8)
(120.6)
(88.9)
(11.1)
(33.0)
63/8"
25/8"
55/8"
51/2"
4"
5/8"
1.20"
(30.5)
(161.9)
(66.7)
(142.9)
(139.7)
(101.6)
(15.9)
(2.67-3.34)
1.20"
(30.5)
HMT-1-129
Pink
750-900
(3.34-4.00)
1.10"
(27.9)
HMT-1-130
Gray
900-1100
(4.00-4.90)
1.00"
(25.4)
HMT-1-131
Wht/Blk
1100-1300
(4.90-5.78)
1.00"
(25.4)
HMT-1-132
Gold/Blk
1300-1500
(5.78-6.70)
0.90"
(22.8)
*HMLT Series are Lower profile.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Pipe Hangers & Supports
260
Lbs.
(kg)
3.0
(1.4)
8.0
(3.6)
Vibra Trol
Part
No.