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FREE Cardio-Tramp® included with this Reformer ($385500 value)

Spring Pair · Stability Chair - Light

Spring Pair · Stability Chair - Light
Spring Pair · Stability Chair - Light
Spring Pair · Stability Chair - Light 0.0 0 Be the first to add a review
SKU : ST05130
$137.00 CAD
$137.00 CAD
 

These light tension springs are made exclusively for Merrithew Stability Chairs. Each is nickel-plated and heat-treated to protect the base material of the spring. This ensures the quality and integrity of its tension throughout its life through demanding studio use.

Sold as a pair.

Note, this item is for use with Merrithew/STOTT PILATES® equipment only. Questions? Have one of our specialists help! Contact us

Spring performance
  • Our springs are built to withstand vigorous use in professional or commercial environments
  • To maintain performance and warranty, springs require replacement every two years
Spring resistance details
  • Overall length of the spring is 18 in with an initial tension of 14.75 lbs (load required to open the coils without extension)
  • Spring rate of 3.888 lb/inch (load required to extend spring every inch after the initial tension is applied)
Spring specs
SpringInitial tensionSpring rateLengthCoil diameterSpring ball O-ring color
Leg Spring3.4–4.5 lbs
(1.5–2.0 kg)
.625 lbs/in +/- 5%
(.11 N/mm +/- 5%)
22 in
(55.9 cm)
1.2 in
(3 cm)
White
Leg Spring · Enhanced3.0–4.0 lbs
(1.4–1.8 kg)
.625 lbs/in +/- 5%
(.11 N/mm +/- 5%)
22 in
(55.9 cm)
1.2 in
(3 cm)
Green
Light Arm Spring2.2–3.2 lbs
(1.0–1.5 kg)
.378 lbs/in +/- 10%
(.07 N/mm +/- 10%)
19 in
(48.3 cm)
1.1 in
(2.8 cm)
Yellow
Reformer Spring · 25%2.25–3.25 lbs
(1.0–1.5 kg)
.311 lbs/in +/- 5%
(.05 N/mm +/- 5%)
19.5 in
(49.5 cm)
1.5 in
(4 cm)
White
Reformer Spring · 50%3.0–4.0 lbs
(1.4–1.8 kg)
.625 lbs/in +/- 5%
(.11 N/mm +/- 5%)
19.5 in
(49.5 cm)
1.5 in
(4 cm)
Blue
Reformer Spring · 100%6.0–7.5 lbs
(2.7–3.4 kg)
1.25 lbs/in +/- 5%
(.22 N/mm +/- 5%)
19.5 in
(49.5 cm)
1.5 in
(4 cm)
Red
Reformer Spring · 125%7.0–11.0 lbs
(3.2–5.0 kg)
1.56 lbs/in +/- 5%
(.27 N/mm +/- 5%)
19.5 in
(49.5 cm)
1.5 in
(4 cm)
Black
Roll-Down Spring2.9–3.9 lbs
(1.3–1.8 kg)
.495 lbs/in +/- 10%
(.09 N/mm +/- 10%)
19 in
(48.3 cm)
1.2 in
(3 cm)
Black
Push-Thru Spring / Stability Chair · Light Spring5.5–7.5 lbs
(2.5–3.4 kg)
1.157 lbs/in +/- 10%
(.2 N/mm +/- 10%)
18 in
(45.7 cm)
1.1 in
(2.8 cm)
Blue
Trapeze Spring / Stability Chair · Heavy Spring14.75 lbs +/- 1.5 lbs
(6.7 kg +/- .7 kg)
3.888 lbs/in +/- 5%
(.68 N/mm +/- 5%)
18 in
(45.7 cm)
1.2 in
(3 cm)
Red
  • 2 years: All springs

For our full equipment warranty, see our warranty terms and conditions

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