3.5OSM - Open Spring Mounts

OSM open spring mounts are designed to provide efficient isolation from critical vibrations and efficiently protect structures from transferring vibrations.

The top spring cup has a leveling nut for precise adjustments in height. Anti-vibration rubber cups reduce the transfer of vibrations and noise. Springs are color coded for easy identification.

Available in four sizes:

OSM-500: Ruber cups are 5" in diameter, and the springs are designed for 3" deflection.

OSM-350: Ruber cups are 3.50" in diameter, and the springs are designed for 1" and 2" deflections.

OSM-250: Ruber cups are 2.50" in diameter, and the springs are designed for 1" and 2" deflections.

OSM-150: Ruber cups are 1.50" in diameter, and the springs are designed for 1/2" deflection.

Recommended for:

HVAC equipment, fan air circulation systems, compressors, pumps, chillers, AC units, cooling towers, inertia bases, etc.

Open spring mounts are not designed to accommodate angular misalignments, and must not be used for tensile or shear loading.

OSM - Open Spring Mounts

Printable Pages:

OSM-500 - 3" deflection

OSM-350 - 1" & 2" deflection

OSM-250 - 1" & 2" deflection

OSM-150 - 1/2" deflection

Installation Instructions

Features:

All springs at rated loads have 50% additional travel to solid load.

Leveling nut for easy height adjustment.

Safety Factor - springs will accommodate 50% extra load from rated load to solid load.

Spring cup base has an attachement hole for anchoring.

Elastomer spring cups provide better vibration isolation, load distribution, and noise reduction.

Recommended load range: from 50% of rated load to rated load.

Springs are color coded and easily replaceable.

Springs have a minimum ratio of 0.8 for the diameter divided by the deflected spring height (*).

Go here for Seismic Restrained Isolators:

Please contact us for larger volume orders as further discounts may apply.

Model	Rated Load (lbs)	Spring Rate (lbs/in)	Spring Color	Shipping Weight (lbs)	Price
OSM-150 - 1/2'' DEFLECTION
OSM-020	5	10	Black	0.3	$20.00 USD
OSM-021	15	30	Blue	0.3	$20.00 USD
OSM-022	35	70	Red	0.3	$20.00 USD
OSM-023	50	100	Yellow	0.3	$20.00 USD
OSM-024	80	200	White	0.3	$20.00 USD
OSM-025	130	325	Green	0.3	$20.00 USD
OSM-250 - 1" DEFLECTION
OSM-121	45	45	Grey	1.3	$30.00 USD
OSM-122	100	100	Black	1.3	$30.00 USD
OSM-123	165	165	Pink	1.3	$30.00 USD
OSM-124	235	235	Blue	1.3	$30.00 USD
OSM-125	335	335	Red	1.3	$30.00 USD
OSM-126	500	500	Brown	1.3	$30.00 USD
OSM-127	850	950	Yellow	1.3	$30.00 USD
OSM-128	1,000	1,250	Green	1.3	$30.00 USD
OSM-250 - 1" DEFLECTION
OSM-101	50	50	Blue	1.4	$30.00 USD
OSM-103	120	120	Brown	1.4	$30.00 USD
OSM-105	270	270	Yellow	1.4	$30.00 USD
OSM-106	400	400	Red	1.4	$30.00 USD
OSM-107	650	650	Green	1.4	$30.00 USD
OSM-109	900	900	White	1.4	$30.00 USD
OSM-110	1,250	1,250	Red w/Orange line	1.4	$30.00 USD
OSM-250 - 2" DEFLECTION
OSM-170	43	21	Blue	1.5	$40.00 USD
OSM-140	80	40	Black	1.5	$40.00 USD
OSM-172	155	78	Orange	1.5	$40.00 USD
OSM-174	236	118	White	1.5	$40.00 USD
OSM-175	300	150	Brown	1.5	$40.00 USD
OSM-176	395	198	Black	1.5	$40.00 USD
OSM-178	550	275	Pink	1.5	$40.00 USD
OSM-150	650	325	Grey	1.5	$40.00 USD
OSM-302	195	195	Yellow	3.7		Inquire
OSM-303	400	400	Orange	3.7		Inquire
OSM-304	530	530	Red	3.7		Inquire
OSM-303-311	650	650	Orange/Green	4.3		Inquire
OSM-350 - 1'' DEFLECTION
OSM-305	825	825	White	3.7		Inquire
OSM-306	1,000	1,000	Brown	3.7		Inquire
OSM-306-311	1,200	1,200	Brown/Green	4.3		Inquire
OSM-305-312	1,400	1,400	White/Yellow	4.3		Inquire
OSM-307	1,700	1,700	Green	3.7		Inquire
OSM-308	2,000	2,000	Black	3.7		Inquire
OSM-307-312	2,330	2,330	Green/Yellow	4.3		Inquire
OSM-309	2,600	2,600	Blue	3.7		Inquire
OSM-308-313	2,990	2,990	Black/Orange	4.3		Inquire
OSM-308-314	3,250	3,250	Black/Grey	4.3		Inquire
OSM-309-314	3,850	3,850	Blue/Grey	4.3		Inquire
OSM-350 - 2'' DEFLECTION
OSM-350	80	40	Plated	3.5	$50.00 USD
OSM-350-140	150	75	PLated /Plated	4.3	$60.00 USD
OSM-352	180	100	Plated	3.5	$50.00 USD
OSM-402	200	100	Grey	3.5		Inquire
OSM-352-140	250	125	Plated/Plated	4.3	$60.00 USD
OSM-403	348	174	Black	3.7	$50.00 USD
OSM-404	453	226	Blue	3.7	$50.00 USD
OSM-405	590	295	Red	3.7	$50.00 USD
OSM-406	676	338	Orange	3.7	$50.00 USD
OSM-407	787	393	Green	3.7	$50.00 USD
OSM-408	918	459	White	3.7	$50.00 USD
OSM-409	1,000	500	Brown	3.7	$50.00 USD
OSM-410	1,250	625	Yellow	3.7	$50.00 USD
OSM-407-150	1,587	793	Green/Grey	4.6	$60.00 USD
OSM-409-150	1,800	900	Brown/Grey	4.6	$60.00 USD
OSM-410-150	2,050	1,025	Yellow/Grey	4.6	$60.00 USD
OSM-500 - 3'' DEFLECTION
OSM-500	200	66.7	Black	11.5	$120.00 USD
OSM-501	400	133.3	Blue	11.5	$120.00 USD
OSM-502	600	200	Yellow	11.5	$120.00 USD
OSM-503	800	266.7	Orange	11.5	$120.00 USD
OSM-504	1,000	333.3	Red	11.5	$120.00 USD
OSM-505	1,200	400	White	11.5	$160.00 USD
OSM-506	1,500	500	Brown	11.5	$160.00 USD
OSM-507	2,000	666.7	Green	11.5	$160.00 USD
OSM-506-853	2,500	833.3	Brown/Grey	13	$180.00 USD
OSM-509	3,000	1,000	Green/Grey	13	$180.00 USD
OSM-509-853	4,000	1,333	Grey/Grey	13	$180.00 USD

Note: When product price is not shown, please call our office for technical consultation prior to place an order

Notes:

a) Do not use open spring mounts for external applications without independent restraints.

b) 300 Springs: 3” Outside diameter x 4.75” Free Length. (*)

d) 400 Springs: 3” Outside diameter x 5.75” Free Length. (*)

e) 500 Springs: 4.4” Outside diameter x 8.75” Free Length. (*)

f) 120 Springs: 2” Outside diameter x 3” Free Length. (*)

g) 100 Springs: 2” Outside diameter x 4” Free Length.

h) 170 Springs: 2” Outside diameter x 5” Free Length. (*)

i) 020 Springs: 1.25” Outside diameter x 1.5” Free Length. (*)

Certificates & Awards:

TRU Compliance

Controlled Goods Program

ISO 9001:2015

HRAI Membership