We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.

Dimensions & Specifications of Fan Shafts
Dimensions & Specifications of Fan Shafts

NOM DIA.
A DIA.
A TOL.
B** WALL THK.
JOURNAL DIA. TOL.
C JOURNAL
D* KEYSLOT +.002-.000
E +.000-.005
F&G&H
J
K
L
APROXIMATE SHAFT WGT.
Per Inch
Per Ft.
1
1.00
±.002
.120
+.0000-.0015
3/4
3/16
.644
To Suit
1/2
F+J
J+G
.094
1.128
.180
1
1/4
.859
-
.135
1.638
1-1/8
1.125
±.002
.120
+.0000-.0015
3/4
3/16
.644
To Suit
3/4
F+J
J+G
.107
1.288
1
1/4
.859
1/4
.180
1-1/8
1/4
.986
-
.156
1.881
1-3/16
1.187
±.002
.125
+.0000-.0015
3/4
3/16
.644
To Suit
13/16
F+J
J+G
.123
1.479
1
1/4
.859
3/8
.180
1-3/16
1/4
1.049
-
.177
2.132
1-3/8
1.375
+.006
-.000
.125
+.0000-.0015
3/4
3/16
.644
To Suit
1-3/16
F+J
J+G
.139
1.669
1
1/4
.859
11/16
.180
1-3/16
1/4
1.049
5/16
.198
2.383
1-5/8
1.625
+.006
-.000
.125
+.0000-.0015
3/4
3/16
.644
To Suit
1-11/16
F+J
J+G
.166
2.003
1
1/4
.859
1-3/16
1-3/16
1/4
1.049
13/16
.180
1-7/16
3/8
1.225
3/8
.240
2.885
2
2.00
+.006
-.000
.134
+.0000-.0015
3/4
3/16
.644
To Suit
2-3/8
F+J
J+G
.222
2.670
1
1/4
.859
1-7/8
.180
1-3/16
1/4
1.049
1-9/16
.303
3.638
.250
1-7/16
3/8
1.225
1-1/8
.389
4.673
2-1/4
2.250
+.006
-.000
.134
+.0000-.0015
3/4
3/16
.644
To Suit
3-1/2
F+J
J+G
.252
3.028
1
1/4
.859
2-3/4
.180
1-3/16
1/4
1.049
2-1/4
.345
4.140
.250
1-7/16
3/8
1.225
1-3/4
.445
5.340
3
3.000
+.008
-.000
.134
+.0000-.0015
1
1/4
.859
To Suit
4-3/8
F+J
J+G
.350
4.196
1-3/16
1/4
1.049
4
.180
1-7/16
3/8
1.225
3-1/2
.451
5.421
.250
1-11/16
3/8
1.479
3
.612
7.343
3-1/2
3.500
+.010
-.000
.188
+.0000-.0015
1
1/4
.859
To Suit
5-9/16
F+J
J+G
.554
6.650
1-3/16
1/4
1.049
5-1/8
1-7/16
3/8
1.225
4-9/16
1-11/16
3/8
1.479
4
1-15/16
1/2
1.655
3-1/2
.250
2-3/16
1/2
1.909
3-1/8
.723
8.678
4
4.000
+.010
-.000
.134
+.0000-.0015
1
1/4
.859
To Suit
6-3/4
F+J
J+G
.474
5.693
1-3/16
1/4
1.049
6-1/4
1-7/16
3/8
1.225
5-5/8
1-11/16
3/8
1.479
5
1-15/16
1/2
1.655
4-1/2
2-3/16
1/2
1.909
4-1/8
2-7/16
5/8
2.084
3-1/2
.180
2-11/16
5/8
2.338
3
.625
7.504
.250
2-15/16
3/4
2.514
2-5/8
.834
10.01
4-1/2
4.500

+.015
-.000
.188
+.0000-.0015
1-2/16
1/4
1.049
To Suit
7-1/2
F+J
J+G
.735
8.828
1-7/16
3/8
1.225
6-3/4
1-11/16
3/8
1.479
6
1-15/16
1/2
1.655
5-5/8
2-3/16
1/2
1.909
5-1/8
2-7/16
5/8
2.084
4-1/2
2-11/16
5/8
2.338
4
.250
2-15/16
3/4
2.514
3-5/8
.945
11.35
5
5.000
+.015
-.000
.188
+.0000-.0015
1-3/16
1/4
1.049
To Suit
8-5/8
F+J
J+G
.805
9.662
1-7/16
3/8
1.225
7-7/8
1-11/16
3/8
1.479
7-1/8
1-15/16
1/2
1.655
6-3/4
2-3/16
1/2
1.909
6-1/4
2-7/16
5/8
2.084
5-5/8
2-3/16
5/8
2.338
5-1/8
.250
2-15/16
3/4
2.514
4-3/4
1.056
12.68
.375
3-13/16
3/4
2.768
4-1/8
1.543
18.52

* Woodruff keyslots available in all std. sizes.
** Wall thickness shown in shaded blocks are std.—others available on special order.

Overall length tolerance up to 8ft.±1/16 - 10ft. to 15ft. ±1/8 - over 15ft. ±3/16.
Journal length tolerance ±1/8—keyway length tolerance ±1/16.
*Max T.I.R. either journal not to exceed .002
*Max T.I.R. at any one plane not to exceed .016 +ovality or not to exceed a max of .030 including ovality. Total T.I.R. to .010 on request.
Balance tolerance expressed as vibration displacement = .5 to 1.5 mils or approx. .015 oz. inches per pound of shaft.
The approx. range in oz. inches=.025 to 3.4 oz. inches depending on the dia. and length of shaft as related to the weight.

Note: Wgts. shown in the chart include Rigitizing but do not include balance wgts.
Material is ASTM 1020 grade steel tubing. All tubing processed is electric resistance welded to ASTM A513 unless otherwise specified. All PTS shafting is given a coating of rust preventative before shipment. Other PTS optional coating specs. on request.
All shafts are Rigitized and balanced.
All journals are finish machined to an RMS of 60 or better unless otherwise specified.
Specifications and tolerances other than these above must be by approval.
Engineering dwgs. are provided to suit your specific requirements.
All PTS shafts are crated and are stackable—see standard crating specs.

All specifications and dimensions subject to change without notice.