Premier manufacturer and distributor of
Full Length Pre-Keyed Shafting
Standard sizes in diameters from 3/8″ to 2 1/2″
Stock lengths from 3 feet to 24 feet
Carbon steel (AISI-1045) or stainless steel (T304 or T316)
Custom shaft sizes and key sizes
Special keyway configurations
Stock Sizes of Keyshaft
All material is furnished as Cold Drawn, Ground & Polished
DIA. |
KEYWAY |
1045 |
304/316 |
3/8 |
3/32
X 3/64 |
X |
X |
1/2 |
1/8
X 1/16 |
X |
X |
5/8 |
3/16
X 3/32 |
X |
X |
3/4 |
3/16
X 3/32 |
X |
X |
7/8 |
3/16
X 3/32 |
X |
|
1 |
1/4
X 1/8 |
X |
X |
1
1/8 |
1/4
X 1/8 |
X |
|
1
3/16 |
1/4
X 1/8 |
X |
X |
1
1/4 |
1/4
X 1/8 |
X |
X |
1
3/8 |
5/16
X 5/32 |
X |
|
1
7/16 |
3/8
X 3/16 |
X |
X |
DIA. |
KEYWAY |
1045 |
304/316 |
1
1/2 |
3/8
X 3/16 |
X |
X |
1
5/8 |
3/8
X 3/16 |
X |
|
1
11/16 |
3/8
X 3/16 |
X |
|
1
3/4 |
3/8
X 3/16 |
X |
|
1
15/16 |
1/2
X 1/4 |
X |
|
2 |
1/2
X 1/4 |
X |
X |
2
3/16 |
1/2
X 1/4 |
X |
|
2
1/4 |
1/2
X 1/4 |
X |
|
2
7/16 |
1/2
X 1/4 |
X |
|
2
1/2 |
5/8
X 5/16 |
X |
If you don’t see your required size in the above tables, please ask! If you need it often, we’ll add it to our inventory and stock it for you!
We can also make special pre-keyed shafts (English or metric) with single, multiple, or interrupted keyways in diameters as small as 1/16″ and as large as 4 1/2″, and provide complete in-house secondary machining to manufacture custom shafting to print.
We invite your inquiries!
Diameter Tolerances
Diametrical tolerance for ground and polished Keyshaft™ bars.
Diameter |
Tolerance |
3/8 |
+.000/-.001 |
1/2 |
+.000/-.001 |
5/8 |
+.000/-.001 |
3/4 |
+.000/-.001 |
7/8 |
+.000/-.001 |
1 |
+.000/-.001 |
1 1/8 |
+.000/-.001 |
1 3/16 |
+.000/-.001 |
1 1/4 |
+.000/-.001 |
1 3/8 |
+.000/-.001 |
1 7/16 |
+.000/-.001 |
Diameter |
Tolerance |
1 1/2 |
+.000/-.001 |
1 5/8 |
+.000/-.0015 |
1 11/16 |
+.000/-.0015 |
1 3/4 |
+.000/-.0015 |
1 15/16 |
+.000/-.0015 |
2 |
+.000/-.0015 |
2 3/16 |
+.000/-.0015 |
2 1/4 |
+.000/-.0015 |
2 7/16 |
+.000/-.0015 |
2 1/2 |
+.000/-.002 |
Per ASTM-A29
Material Grades
for Keyshaft™ steel bars
Shaft diameter |
Tensile strength, KSI |
Yield strength, KSI |
Elong.% |
R/A % |
Bhn |
3/8 to 7/8 |
95 |
85 |
12 |
35 |
187 |
Over 7/8 to 1 1/4 |
90 |
80 |
11 |
30 |
179 |
Over 1 1/4 to 2 |
85 |
75 |
10 |
30 |
170 |
Over 2 to 3 |
80 |
70 |
10 |
30 |
163 |
Shaft diameter |
Tensile strength, KSI |
Yield strength, KSI |
Elong.% |
R/A % |
Bhn |
….. to 3/4 |
125 |
100 |
12 |
35 |
258 |
Over 3/4 to 1 |
115 |
80 |
15 |
35 |
237 |
Over 1 to 1 1/4 |
105 |
65 |
20 |
35 |
226 |
Over 1 1/4 to 1 1/2 |
100 |
50 |
24 |
45 |
210 |
Over 1 1/2 to 1 3/4 |
95 |
45 |
28 |
45 |
202 |
We will make pre-keyed shafting per your requirements in any available grade of carbon, alloy, stainless, or non-ferrous metal in lengths up to 24 feet.
We invite your inquiries!
Key Height Dimensions
Shaft diameter |
Key width |
Max. key height |
Min. key height |
.375 |
.093 |
.322 |
.307 |
.500 |
.125 |
.430 |
.415 |
.625 |
.188 |
.517 |
.502 |
.750 |
.188 |
.644 |
.630 |
.875 |
.188 |
.771 |
.756 |
1.000 |
.250 |
.859 |
.844 |
1.125 |
.250 |
.986 |
.971 |
1.188 |
.250 |
1.049 |
1.034 |
1.250 |
.250 |
1.112 |
1.098 |
1.375 |
.313 |
1.201 |
1.186 |
1.438 |
.375 |
1.215 |
1.211 |
Shaft diameter |
Key width |
Max. key height |
Min. key height |
1.500 |
.375 |
1.289 |
1.274 |
1.625 |
.375 |
1.416 |
1.401 |
1.688 |
.375 |
1.479 |
1.464 |
1.750 |
.375 |
1.542 |
1.527 |
1.938 |
.500 |
1.655 |
1.640 |
2.000 |
.500 |
1.718 |
1.704 |
2.188 |
.500 |
1.909 |
1.894 |
2.250 |
.500 |
1.972 |
1.957 |
2.438 |
.625 |
2.084 |
2.070 |
2.500 |
.625 |
2.148 |
2.133 |
Keyway Width Tolerances
for Keyshaft™ steel bars
Key width |
plus |
minus |
….. to 1/2″ |
.002″ |
.000″ |
>1/2″ to 1″ |
.003″ |
.000″ |
Keyways
The following chart defines the tolerances that Excalibur bars are produced to with respect to keyway size and tolerance.
Shaft diameter |
Key width |
Max. key height |
Min. key height |
.375 |
.093 |
.322 |
.307 |
.500 |
.125 |
.430 |
.415 |
.625 |
.188 |
.517 |
.502 |
.750 |
.188 |
.644 |
.630 |
.875 |
.188 |
.771 |
.756 |
1.000 |
.250 |
.859 |
.844 |
1.125 |
.250 |
.986 |
.971 |
1.188 |
.250 |
1.049 |
1.034 |
1.250 |
.250 |
1.112 |
1.098 |
1.375 |
.313 |
1.201 |
1.186 |
Shaft diameter |
Key width |
Max. key height |
Min. key height |
1.438 |
.375 |
1.215 |
1.211 |
1.500 |
.375 |
1.289 |
1.274 |
1.625 |
.375 |
1.416 |
1.401 |
1.688 |
.375 |
1.479 |
1.464 |
1.750 |
.375 |
1.542 |
1.527 |
1.938 |
.500 |
1.655 |
1.640 |
2.000 |
.500 |
1.718 |
1.704 |
2.188 |
.500 |
1.909 |
1.894 |
2.250 |
.500 |
1.972 |
1.957 |
2.438 |
.625 |
2.084 |
2.070 |
2.500 |
.625 |
2.148 |
2.133 |
Per ANSI B17.1-1967, R1973
Contact Us
Keyshaft.com
Excalibur Pre-Keyed Shafting, Inc.
1111 N. Old Rand Road
Wauconda, IL 60084
(800) 487-0514
(708) 343-5668 – fax
sales@keyshaft.com
Mon-Fri. 8:00A – 5:00P Central Time
We manufacture KEYSHAFTtm to ANSI B17.1-1967, R1973, the power transmission industry standard for bearing and component fits and keyway sizes and fits for the highest degree of user friendly assembly for MRO and OEM applications. We are sure you will find our product to be the finest of it’s kind in the industry, at a reasonable price, with a sizable inventory of standard sizes for SAME DAY SHIPPING.
Remember, there is never a minimum purchase requirement. Buy only what you need when you need it! And, because we are centrally located within the greater Chicagoland area, your order is never more than a couple of days away via UPS ground, or, for more urgent requirements like machinery breakdowns, we can ship overnight via UPS RED or FEDEX.
Don’t forget to bookmark us!
(800)487-0514 
(708)343-5668