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Mounting flanges and shafts of pumps and motors

Just to determine what flange and shaft of pump or motor you have, please see below excerpts from the next standards:
SAE J744. “Hydraulic Pump and Motor Mounting and Drive Dimensions”.
ISO 3019-1. “Dimensions and identification code for mounting flanges and shaft ends of displacement pumps and motors”.

 

Two bolts mounting flange

Two bolts mounting

Two bolts mounting

Standard Code (P) Pilot Diameter (K) Mounting Distance (D) Bolt Hole Diameter
SAE AA
ISO 50-2
2.00″
50.8 mm
3.25″
82.6 mm
0.406″
10.3 mm
SAE A
ISO 82-2
3.25″
82.55 mm
4.187″
106.4 mm
0.437″
11.1 mm
SAE B
ISO 101-2
4.00″
101.6 mm
5.75″
146 mm
0.562″
14.3 mm
SAE C
ISO 127-2
5.00″
127 mm
7.125″
181 mm
0.687″
17.5 mm
SAE D
ISO 152-2
6.00″
152.4 mm
9.00″
228.6 mm
0.812″
20.6 mm
SAE E
ISO 165-2
6.50″
165.1 mm
12.50″
317.5 mm
1.062″
27 mm
SAE F
ISO 177-2
7.00″
177.8 mm
13.781″
350 mm
1.062″
27 mm

 

Four bolts mounting flange

Four bolt mounting

Four bolt mounting

Standard Code (P) Pilot Diameter (K) Mounting Diameter (S) Mounting Distance (D) Bolt Hole Diameter
SAE B
ISO 101-2
4.00″
101.6 mm
5.00″
n/a
n/a
89.8 mm
0.562″
14.3 mm
SAE C
ISO 127-2
5.00″
127 mm
6.375″
n/a
n/a
114.5 mm
0.562″
14.3 mm
SAE D
ISO 152-2
6.00″
152.4 mm
9.00″
n/a
n/a
161.6 mm
0.812″
20.6 mm
SAE E
ISO 165-2
6.50″
165.1 mm
12.50″
n/a
n/a
224.5
0.812″
20.6 mm
SAE F
ISO 177-2
7.00″
177.8 mm
13.781″
n/a
n/a
247.5
1.062″
27 mm

 

Straight (cylindrical) keyed shafts

Straight (cylindrical) keyed shafts

Straight (cylindrical) keyed shafts

Standard Code (D) Shaft Diameter (SL) Shaft Length (TL) Total Length Key Width
SAE AA
ISO 13-1
0.500″
12.7 mm
0.750″
19 mm
1.062″
27 mm
0.125″
3.18 mm
SAE A
ISO 16-1
0.625″
15.88 mm
0.937″
24 mm
1.250″
32 mm
0.156″
3.97 mm
SAE AH
ISO 19-1
0.750″
19.05 mm
0.937″
24 mm
1.250″
32 mm
0.187″
4.78 mm
SAE B
ISO 22-1
0.875″
22.23 mm
1.312″
33 mm
1.625″
41 mm
0.250″
6.35 mm
SAE BB
ISO 25-1
1.000″
25.40 mm
1.500″
38 mm
1.812″
46 mm
0.250″
6.35 mm
SAE C
ISO 32-1
1.250″
31.75 mm
1.875″
48 mm
2.187″
56 mm
0.312″
7.94 mm
SAE CC
ISO 38-1
1.500″
38.10 mm
2.125″
54 mm
2.437″
62 mm
0.375″
9.53 mm
SAE D
ISO 44-1
1.750″
44.45 mm
2.625″
67 mm
2.937″
75 mm
0.437″
11.11 mm
SAE E 1.750″ 2.625″ 2.937″ 0.437″

 

30° involute splined shafts

30° involute splined shafts

30° involute splined shafts

Standard Code Spline Detail (D) Shaft Diameter (SL) Shaft Length (TL) Total Length
SAE AA
ISO 13-4
9T 20/40 DP 0.500″
12.7 mm
0.750″
19 mm
1.062″
27 mm
SAE A
ISO 16-4
9T 16/32 DP 0.625″
15.88 mm
0.937″
24 mm
1.250″
32 mm
SAE AH
ISO 19-4
11T 16/32 DP 0.750″
19.05 mm
0.937″
30 mm
1.250″
38 mm
SAE B
ISO 22-4
13T 16/32 DP 0.875″
22.23 mm
1.312″
33 mm
1.625″
41 mm
SAE BB
ISO 25-4
15T 16/32 DP 1.000″
25.40 mm
1.500″
38 mm
1.812″
46 mm
SAE C
ISO 32-4
14T 12/24 DP 1.250″
31.75 mm
1.875″
48 mm
2.187″
56 mm
SAE CS
ISO 35-4
21T 16/32 DP 1.375″
34.93 mm
1.875″
48 mm
2.187″
56 mm
SAE CC
ISO 38-4
17T 12/24 DP 1.500″
38.10 mm
2.125″
54 mm
2.437″
62 mm
SAE D, SAE E
ISO 44-4
13T 8/16 DP 1.750″
44.45 mm
2.625″
67 mm
2.937″
75 mm
SAE F
ISO 50-4
15T 8/16 DP 2.000″
50.80 mm
3.150″
80 mm
3.437″
88 mm
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