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TruKey Shafting
TruKey® Shafting from Keystone is designed to provide the straightest, most accurate pre-keyed (redi-keyed) shafting in the industry. We stock keyed shafts in the most common diameters with standard keyways, and can provide it cut to any length up to 20'. TruKey® shafting is available in turned ground and polished carbon steel for an accurate diameter as well as 1018 cold finished steel and turned, ground and polished stainless steel. All keyed shafting has chamfered ends for easy installation.
Keyed shafting is available in lengths up to 20 feet and diameters ranging from 1/2" to 4 1/2". Tolerances on shaft diameters are +0.000, -0.003 inches. We now stock metric shafts in diameters from 20 to 50 mm.
Sizes Available
--- Keystone stocks metric shafting in both 1045 turned ground and polished steel, as well as T-303 stainless steel.
Full length bars and cut-to-length bars available.
Standard and custom full-length keyways available in any shaft.
Materials
High Carbon Steel, turned, ground and polished
1018 Carbon Steel, cold finished
Stainless Steel, turned, ground and polished
1018 Carbon Steel, cold finished
High Carbon Steel, turned, ground and polished
Stainless Steel, turned, ground and polished
Material Specifications |
Material |
Tensile mpa |
Strength psi |
Yield mpa |
Strength psi |
Elongation in 2" |
Reduction in Area |
Brinell Hardness |
1018 |
590 |
85,000 |
485 |
70,000 |
28% |
55% |
167 |
1045 TGP |
690 |
100,000 |
590 |
85,000 |
19% |
32% |
223 |
T-303SS |
515 |
75,000 |
205 |
30,000 |
40% |
50% |
160 |
Chemistry |
Material |
Carbon
C |
Maganese
Mn |
Phosphorus
P |
Sulphur
S |
Silicon
Si |
Chromium
Cr |
Nickel
Ni |
1018 |
.15-.20 |
.60-.90 |
.04 max. |
.05 max. |
-- |
-- |
-- |
1045 TGP |
.43-.50 |
.60-.90 |
.04 max. |
.05 max. |
-- |
-- |
-- |
T-303SS |
.08 max. |
2.00 max. |
.045 |
.03 |
1.0 max. |
18.00-20.00 |
8.0-10.50 |
Keystock
Keystone Manufacturing can also provide square keystock.
All keystock will be ANSI standard.
Square Shafting
Keystone stocks stainless square shafting.
1-1/2" and 2-1/2" diameters
Full length bars and cut-to-length bars available.
We can turn down the ends of square shafts to fit in your bearing or add a keyway for gears.
Call for pricing.
Unkeyed Shafting
Keystone Manufacturing can provide, unkeyed shafting
in the sizes and materials listed above.
Tolerances
All TruKey® shafting is held to a tolerance of +0.000, -0.003 inches or better, on the diameter.
ANSI Standard Keyways |
Shaft Diameter |
Keyway |
Over |
To (Incl.) |
Width |
Depth |
1/2 |
9/16 |
1/8 |
1/16 |
9/16 |
7/8 |
3/16 |
3/32 |
7/8 |
1 1/4 |
1/4 |
1/8 |
1 1/4 |
1 3/8 |
5/16 |
5/32 |
1 3/8 |
1 3/4 |
3/8 |
3/16 |
1 3/4 |
2 1/4 |
1/2 |
1/4 |
2 1/4 |
2 3/4 |
5/8 |
5/16 |
2 3/4 |
3 1/4 |
3/4 |
3/8 |
3 1/4 |
3 3/4 |
7/8 |
7/16 |
3 3/4 |
4 1/2 |
1 |
1/2 |
ANSI Standard Fits for Square, Parallel Keys |
Key Width |
Width Tolerance |
Depth Tolerance |
Over |
To (Incl.) |
Key |
Shaft Keyseat |
Key |
Shaft Keyseat |
Hub Keyseat |
-- |
1/2 |
+0.000 |
+0.002 |
+0.000 |
+0.000 |
+0.010 |
-- |
-- |
-0.002 |
-0.000 |
-0.002 |
-0.015 |
-0.000 |
1/2 |
3/4 |
+0.000 |
+0.003 |
+0.000 |
+0.000 |
+0.010 |
-- |
-- |
-0.002 |
-0.000 |
-0.002 |
-0.015 |
-0.000 |
3/4 |
1 |
+0.000 |
+0.003 |
+0.000 |
+0.000 |
+0.010 |
-- |
-- |
-0.003 |
-0.000 |
-0.003 |
-0.015 |
-0.000 |
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