Compression springs
Do (mm):
1.20 -
91.00
d (mm):
0.15 -
12.00
L0 (mm):
2.00 -
585.00
R (N/mm):
0.05 -
254.00
Material:
SPEC compression spring provide design engineers, draughtsmen, production and maintenance department with precision-engineered springs in an economical and time-saving way. The SPEC service saves time and therefor money as design work and calculations are no longer required.
Materials
„C” part numbers
Music wire: ASTM A228 or AMS 5112
Stainless steel / INOX: Type 302 as per ASTM A313 or AMS 5688 spring temper
Music wire: ASTM A228 or AMS 5112
Stainless steel / INOX: Type 302 as per ASTM A313 or AMS 5688 spring temper
„D” part numbers
Music wire: DIN 17223, JIS G4314 SWP-A/B vagy AMS 5112
Music wire: DIN 17223, JIS G4314 SWP-A/B vagy AMS 5112
Stainless steel / INOX: Type 301, 302 or 304 as per DIN 17224 or JIS G4314 SUS 302/304 or AMS 5688 spring temper
Music wire is not recommended for applications where temperature exceeds 121°C (250°F).
Stainless steel / INOX is not recommended for appplications where temperature exceeds 260°C (500°F).
Stainless steel / INOX is slight magnetic due to cold working during manufacturing. Stainless steel / INOX springs may have a slight residue of nickel on the surface of the wire. This is normal and will not affect the function.
Tolerances
„C” part numbers
Outside diameter
|
|
1,45 - 3,02 mm
|
± 0,08 mm
|
3,05 - 6,10 mm
|
± 0,13 mm
|
6,12-12,70 mm
|
± 0,20 mm
|
12,73 - 25,40 mm
|
± 0,38 mm
|
25,43 - 31,12 mm
|
± 0,51 mm
|
31,14 - 37,08 mm
|
± 0,76 mm
|
37,11 - 50,08 mm
|
± 1,02 mm
|
Load P
|
± 10%
|
Rate R
|
± 10%
|
|
„D” part numbers
All dimensions and forces to DIN 2095 (Grade 2.)
Ends
„C” part numbers
Outside diameter 1,45 - 2,24 mm - squared and unground
Outside diameter >2.24 - squared and ground
„D” part numbers
Wire up to 0,8 mm - squared and unground
Wire up to 0,8 mm - squared and unground
Wire over 1,0 mm - squared and ground
Load
Load values shows are based on a service life of 50,000 cycles at 0.50 stress range. For normal service springs should not be compressed. To determine the load at any working lenght use rate pruposed deflection. P=(L-Lx)*R, where Lx is the new load height. Reference only:
1 lb = 4,448 Newton
1 Newton = 0,225 lb
1 Newton = 0,225 lb
1 kg = 9,80665 Newtons
1 Newton = 0,10197 kg
Surface finish
1 Newton = 0,10197 kg
Surface finish
Music wire - oiled
Stainless steel / INOX - plain wire
Shot-peened and plated finishes supplied an request