Spur Gear Selection

For a required centre distance and gear ratio a suitable pair of spur Strength capacity Ps= Xb x Sb x YS x F x N x Z x P2 kw
gears can be selected used and assessed by the following procedure. 19,100 x 103
Select numbers of teeth in gears and module (pitch). Wear capacity Pw = Xc x Sc x YZ x F x N x Z x P1.8kw
10,000 x 103
Gear Ratio i = Z2 (Teeth driven gear)

Te l
Z1 (Teeth driven gear) Where:- F = Face width mm
N = Gear shaft speed r.p.m.
Shaft centre distance in mm = 1 /2 sum gear teeth x pitch P = Gear pitch, Module No.
= 1 /2 (Z1 + Z2) P Sb = Bending stress for gear material (see below)

+44 121 360 0155

From this initial selection each gear can be assessed for strength Sc = Surface stress for gear material (see below)
and wear using the following formulae. The least of the four Xb = Speed factor for strength - see table 1
calculated powers is the capacity of the gear set. The capacity Xc = Speed factor for wear - see table 2
required is determined by multiplying actual power by a service YS = Strength factor - see table 3
factor relative to driver and driven equipment, refer page c2. If YZ = Zone factor - see table 4
calculated power is below required capacity increase pitch or face
width of gears, adjust teeth sizes accordingly, and reassess drive. If Factors Sb and Sc Gears
calculated power is substantially in excess of required capacity a Gear Type 2 2

lower Module could be considered. Sb N/mm Sc N/mm

Steel Gears and racks 130 9.65
Cast Gears 52 9.30
Table 1 Speed factor for Strength Xb (for 26000 hour rating)
Daily Gear Shaft rpm
Hours 0.1 1 5 10 40 100 150 200 400 500 600 1000 1500 2000 3000 5000 10000
24 0.784 0.640 0.565 0.518 0.435 0.375 0.349 0.330 0.294 0.286 0.274 0.246 0.223 0.211 0.180 0.153 0.122
12 0.865 0.700 0.623 0.568 0.475 0.420 0.384 0.362 0.321 0.310 0.300 0.268 0.245 0.231 0.198 0.167 0.134
6 0.970 0.775 0.685 0.628 0.526 0.460 0.426 0.410 0.357 0.342 0.331 0.297 0.272 0.263 0.221 0.186 0.147
3 1.060 0.864 0.750 0.690 0.580 0.512 0.474 0.448 0.401 0.380 0.368 0.328 0.301 0.286 0.245 0.207 0.164
1 1.250 1.031 0.880 0.800 0.678 0.596 0.552 0.525 0.465 0.445 0.437 0.385 0.349 0.328 0.286 0.240 0.192

Table 2 Combined Speeed Factor for Wear Xc (for 26000 hour rating)

Fax
Daily Gear Shaft rpm
Hours 0.1 1 5 10 40 100 150 200 400 500 600 1000 1500 2000 3000 5000 10000
24 1.149 0.780 0.564 0.488 0.377 0.320 0.297 0.282 0.250 0.240 0.233 0.209 0.192 0.180 0.157 0.132 0.106

+44 121 325 1079

12 1.448 0.998 0.718 0.625 0.478 0.408 0.372 0.355 0.317 0.304 0.294 0.262 0.240 0.226 0.196 0.165 0.132
6 1.830 1.258 0.901 0.790 0.607 0.514 0.474 0.455 0.404 0.382 0.370 0.334 0.307 0.287 0.250 0.211 0.167
3 2.200 1.570 1.168 0.980 0.762 0.650 0.602 0.575 0.508 0.480 0.472 0.425 0.381 0.360 0.308 0.263 0.210
1 3.320 2.280 1.653 1.440 1.218 0.928 0.862 0.825 0.728 0.700 0.675 0.610 0.551 0.520 0.425 0.390 0.304

Table 3 Strength Factor Ys

Number Teeth Mating Gear
No. Teeth Rack 127 100 80 70 60 50 40 35 30 28 26 24 22 20 19 18 17 16 15 14 13 12
12 .658 .625 .618 .614 .610 .605 .600 .597 .596 .593 .592 .591 .590 .588 .585 .584 .581 .578 .575 .573 .571 .567 .562
13 .679 .644 .638 .632 .628 .623 .616 .612 .610 .606 .605 .604 .602 .600 .597 .597 .595 .590 .587 .584 .578 .575 .570
14 .700 .662 .655 .650 .645 .640 .632 .626 .623 .620 .619 .617 .614 .611 .608 .606 .604 .600 .597 .592 .588 .583 .576
15 .714 .678 .670 .664 .659 .653 .646 .638 .635 .631 .629 .626 .624 .620 .617 .613 .609 .606 .598 .598 .593 .587 .580
Number of Teeth on Gear being Designed

16 .729 .690 .684 .676 .672 .665 .657 .650 .647 .639 .637 .634 .630 .626 .621 .617 .615 .610 .606 .601 .596 .593 .590
17 .740 .702 .696 .687 .682 .675 .665 .657 .653 .647 .643 .639 .634 .630 .624 .620 .616 .613 .609 .604 .598 .592 .584
18 .750 .710 .704 .697 .691 .683 .672 .665 .660 .650 .645 .642 .637 .632 .625 .622 .618 .614 .610 .605 .600 .593 .584
19 .760 .720 .713 .706 .700 .692 .680 .672 .664 .652 .647 .643 .638 .633 .623 .623 .619 .615 .610 .605 .600 .593 .584
20 .770 .728 .720 .713 .707 .698 .686 .677 .665 .652 .646 .642 .638 .628 .626 .622 .619 .614 610 .605 .600 .586 .579
22 .786 .740 .732 .726 .714 .709 .696 .674 .660 .647 .644 .640 .635 .630 .624 .621 .617 .613 .608 .604 .598 .590 .581
24 .800 .752 .741 .735 .728 .718 .700 .667 .648 .641 .637 .634 .629 .625 .620 .617 .613 .610 .605 .600 .593 .586 .577
26 .813 .762 .753 .742 .735 .725 .699 .671 .645 .633 .630 .627 .623 .619 .614 .612 .609 .605 .601 .595 .589 .581 .572
28 .828 .772 .763 .750 .743 .732 .711 .675 .647 .625 .622 .620 .616 .613 .609 .607 .603 .600 .594 .588 .582 .575 .566
30 .838 .782 .772 .759 .750 .738 .716 .677 .649 .623 .615 .611 .609 .605 .602 .600 .596 .591 .587 .582 .576 .569 .560

Email
35 .862 .800 .789 .775 .765 .751 .727 .686 .654 .622 .613 .600 .592 .588 .584 .581 .578 .574 .570 .564 .560 .554 .546
40 .876 .820 .803 .788 .776 .761 .736 .693 .660 .642 .619 .607 .594 .585 .574 .569 .565 .562 .559 .555 .550 .544 .535
50 .900 .842 .822 .806 .794 .776 .752 .705 .675 .644 .633 .620 .604 .593 .582 .575 .568 .560 .552 .544 .538 .528 .517
60 .913 .850 .833 .815 .802 .783 .758 .716 .686 .654 .642 .630 .615 .600 .590 .583 .574 .567 .559 .549 .542 .533 .523
70 .923 .858 .839 .820 .806 .788 .762 .723 .695 .664 .650 .638 .624 .611 .596 .589 .582 .574 .566 .556 .547 .539 .529
80 .928 .860 .839 .821 .808 .791 .765 .728 .703 .673 .658 .645 .632 .618 .602 .596 .588 .591 .579 .562 .553 .543 .533
100 .931 .860 .840 .822 .809 .793 .767 .734 .710 .683 .669 .661 .641 .628 .613 .604 .596 .589 .580 .571 .561 .550 .541
127 .930 .860 .836 .820 .808 .789 .770 .738 .716 .693 .680 .670 .650 .638 .624 .616 .608 .598 .590 .580 .570 .560 .550
_
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Rack .839 .820 .808 .800 .780 .767 .755 .742 .728 .721 .714 .705 .696 .684 .677 .669 .661 .652 .642 .632 .620 .606
Table 4 Zone Factor Yz (Note: factor same for both gears in gearset)
Number Teeth Mating Gear
No. Teeth Rack 127 100 80 70 60 50 40 35 30 28 26 24 22 20 19 18 17 16 15 14 13 12
12 1.47 1.35 1.34 1.32 1.30 1.28 1.26 1.25 1.25 1.24 1.23 1.22 1.21 1.20 1.19 1.18 1.16 1.14 1.12 1.10 1.07 1.04 1.01
13 1.65 1.47 1.46 1.44 1.42 1.39 1.35 1.34 1.32 1.31 1.29 1.28 1.26 1.25 1.23 1.20 1.18 1.16 1.14 1.12 1.09 1.06 1.04
14 1.75 1.61 1.59 1.55 1.53 1.49 1.45 1.42 1.40 1.38 1.37 1.36 1.34 1.32 1.29 1.28 1.25 1.23 1.21 1.18 1.15 1.09 1.07
15 1.90 1.72 1.69 1.64 1.61 1.58 1.53 1.48 1.46 1.43 1.42 1.41 1.39 1.37 1.34 1.31 1.29 1.27 1.24 1.21 1.18 1.12 1.10
Number of Teeth on Gear being Designed

16 2.08 1.84 1.80 1.75 1.72 1.67 1.62 1.55 1.53 1.49 1.48 1.46 1.45 1.42 1.39 1.36 1.33 1.30 1.28 1.24 1.21 1.14 1.12
17 2.20 1.97 1.92 1.86 1.81 1.75 1.68 1.61 1.59 1.55 1.54 1.52 1.49 1.47 1.43 1.41 1.38 1.35 1.30 1.27 1.23 1.16 1.14
18 2.30 2.06 2.01 1.94 1.89 1.83 1.75 1.66 1.63 1.60 1.58 1.56 1.53 1.50 1.46 1.44 1.41 1.38 1.33 1.29 1.25 1.18 1.16
19 2.42 2.16 2.10 2.04 1.98 1.92 1.82 1.71 1.68 1.64 1.62 1.60 1.57 1.54 1.50 1.47 1.44 1.41 1.36 1.31 1.28 1.20 1.18
20 2.55 2.26 2.20 2.12 2.07 2.00 1.89 1.75 1.72 1.68 1.66 1.63 1.60 1.56 1.53 1.50 1.46 1.43 1.39 1.34 1.29 1.23 1.19
22 2.78 2.42 2.35 2.28 2.22 2.13 2.00 1.88 1.82 1.75 1.73 1.70 1.66 1.62 1.56 1.54 1.50 1.47 1.42 1.37 1.32 1.25 1.20
24 3.00 2.59 2.50 2.42 2.34 2.25 2.13 1.98 1.90 1.83 1.79 1.75 1.71 1.66 1.60 1.57 1.53 1.49 1.45 1.39 1.34 1.26 1.21
26 3.20 2.74 2.64 2.53 2.44 2.36 2.23 2.06 1.96 1.88 1.84 1.80 1.75 1.70 1.63 1.60 1.56 1.52 1.46 1.41 1.36 1.28 1.22
28 3.45 2.89 2.79 2.66 2.56 2.46 2.33 2.15 2.04 1.94 1.90 1.84 1.79 1.73 1.66 1.62 1.58 1.54 1.48 1.42 1.37 1.29 1.23
30 3.70 3.03 2.90 2.76 2.67 2.54 2.40 2.30 2.11 1.98 1.94 1.88 1.83 1.75 1.68 1.64 1.60 1.55 1.49 1.43 1.38 1.31 1.24
35 4.30 3.44 3.35 3.00 2.89 2.77 2.60 2.40 2.27 2.11 2.04 1.96 1.90 1.82 1.72 1.68 1.63 1.59 1.53 1.46 1.40 1.32 1.25
40 4.65 3.64 3.50 3.27 3.11 2.93 2.76 2.53 2.40 2.30 2.15 2.06 1.98 1.88 1.75 1.71 1.66 1.61 1.55 1.48 1.42 1.34 1.25
50 5.50 4.07 3.84 3.65 3.50 3.28 3.00 2.76 2.60 2.40 2.33 2.23 2.13 2.00 1.89 1.82 1.75 1.68 1.62 1.53 1.45 1.35 1.26
60 6.50 4.51 4.21 3.89 3.75 3.57 3.28 2.93 2.77 2.54 2.46 2.36 2.25 2.13 2.00 1.92 1.83 1.75 1.67 1.58 1.49 1.39 1.28
70 7.50 4.99 4.67 4.25 3.97 3.75 3.50 3.11 2.89 2.67 2.56 2.44 2.34 2.22 2.07 1.98 1.89 1.81 1.72 1.61 1.53 1.42 1.30
80 8.40 5.31 5.00 4.57 4.25 3.89 3.65 3.27 3.00 2.76 2.66 2.53 2.42 2.28 2.12 2.04 1.94 1.86 1.75 1.64 1.55 1.44 1.32
100 9.70 5.92 5.51 5.00 4.67 4.21 3.84 3.50 3.35 2.90 2.79 2.64 2.50 2.35 2.20 2.10 2.01 1.92 1.80 1.69 1.59 1.46 1.34
127 _ 6.89 5.92 5.31 4.99 4.51 4.07 3.64 3.44 3.03 2.89 2.74 2.59 2.42 2.26 2.16 2.06 1.97 1.84 1.72 1.61 1.47 1.35
Rack _ _ 9.70 8.40 7.50 6.50 5.50 4.65 4.30 3.70 3.45 3.20 3.00 2.78 2.55 2.42 2.30 2.20 2.08 1.90 1.75 1.65 1.47
9

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Standard Spur Gears
B A
B
Dimensions tables for Spur Gears 1.0 and 1.5 Mod.
All gears machined from medium carbon, induction hardening steels.

Gear Widths

Te l
Pitch A B

dp

dp
D

C
d

d
1 Mod 25 15
1.5 Mod 30 17

+44 121 360 0155

1.0 Mod Spur Gears Suffix of Cat. No. indicates gear type Gear Type ‘A’ Gear Type ‘B’
Hub OutsideDia. Weight Hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg
S1012B 12 12 6 6 9 14 .012 S1048B 48 48 10 20 30 50 0.26
S1013B 13 13 6 7 10 15 .016 S1049B 49 49 10 20 30 51 0.27
S1014B 14 14 6 7 11 16 .020 S1050B 50 50 12 20 30 52 0.28
S1015B 15 15 6 8 12 17 .025 S1051B 51 51 12 27 40 53 0.31
S1016B 16 16 6 8 13 18 .030 S1052B 52 52 12 27 40 54 0.32
S1017B 17 17 6 9 14 19 .033 S1053B 53 53 12 27 40 55 0.34
S1018B 18 18 8 10 15 20 .038 S1054B 54 54 12 27 40 56 0.35
S1019B 19 19 8 10 15 21 .045 S1055B 55 55 12 27 40 57 0.36
S1020B 20 20 8 11 16 22 .055 S1056B 56 56 12 27 40 58 0.37
S1021B 21 21 8 11 16 23 .058 S1057B 57 57 12 27 40 59 0.38
S1022B 22 22 8 12 18 24 .060 S1058B 58 58 12 27 40 60 0.39
S1023B 23 23 8 12 18 25 .065 S1059B 59 59 12 27 40 61 0.40
S1024B 24 24 8 13 20 26 .070 S1060B 60 60 12 27 40 62 0.41

Fax
S1025B 25 25 8 13 20 27 .075 S1061B 61 61 12 34 50 63 0.47
S1026B 26 26 8 13 20 28 .085 S1062B 62 62 12 34 50 64 0.48
S1027B 27 27 8 13 20 29 .090 S1063B 63 63 12 34 50 65 0.49
S1028B 28 28 8 13 20 30 .095 S1064B 64 64 12 34 50 66 0.50
S1029B 29 29 8 13 20 31 .100 S1065B 65 65 12 34 50 67 0.51
S1030B 30 30 8 13 20 32 .105 S1066B 66 66 12 34 50 68 0.52

+44 121 325 1079

S1031B 31 31 10 16 25 33 .110 S1067B 67 67 12 34 50 69 0.53
S1032B 32 32 10 16 25 34 .120 S1068B 68 68 12 34 50 70 0.54
S1033B 33 33 10 16 25 35 .130 S1069B 69 69 12 34 50 71 0.55
S1034B 34 34 10 16 25 36 .135 S1070B 70 70 12 34 50 72 0.56
S1035B 35 35 10 16 25 37 .140 S1072A 72 72 12 45 _ 74 0.43
S1036B 36 36 10 16 25 38 .150 S1075A 75 75 12 46 _ 77 0.46
S1037B 37 37 10 16 25 39 .155 S1076A 76 76 12 46 _ 78 0.52
S1038B 38 38 10 16 25 40 .160 S1080A 80 80 12 50 _ 82 0.55
S1039B 39 39 10 16 25 41 .170 S1085A 85 85 12 54 _ 87 0.62
S1040B 40 40 10 16 25 42 .180 S1090A 90 90 12 57 _ 92 0.70
S1041B 41 41 10 20 30 43 .190 S1095A 95 95 12 60 _ 97 0.80
S1042B 42 42 10 20 30 44 .200 S10100A 100 100 12 62 _ 102 0.90
S1043B 43 43 10 20 30 45 .210 S10110A 110 110 12 68 _ 112 1.12
S1044B 44 44 10 20 30 46 .220 S10114A 114 114 12 70 _ 116 1.20
S1045B 45 45 10 20 30 47 .230 S10120A 120 120 12 74 _ 122 1.25
S1046B 46 46 10 20 30 48 .240 S10127A 127 127 12 80 _ 129 1.49
S1047B 47 47 10 20 30 49 .250

1.5 Mod Spur Gears

Hub OutsideDia. Weight Hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg

Email
S1512B 12 18.0 8 9 14 21.0 .03 S1548B 48 72.0 14 34 50 75.0 0.70
S1513B 13 19.5 8 9 14 22.5 .04 S1549B 49 73.5 14 34 50 76.5 0.72
S1514B 14 21.0 8 12 18 24.0 .06 S1550B 50 75.0 14 34 50 78.0 0.75
S1515B 15 22.5 8 12 18 25.5 .07 S1551B 51 76.5 15 40 60 79.5 0.86
S1516B 16 24.0 8 13 20 27.0 .08 S1552B 52 78.0 15 40 60 81.0 0.87
S1517B 17 25.5 8 13 20 28.5 .09 S1553B 53 79.5 15 40 60 82.5 0.89
S1518B 18 27.0 8 13 20 30.0 .10 S1554B 54 81.0 15 40 60 84.0 0.91
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S1519B 19 28.5 8 13 20 31.5 .11 S1555B 55 82.5 15 40 60 85.5 0.93

S1520B 20 30.0 8 16 25 33.0 .13 S1556B 56 84.0 15 40 60 87.0 0.95
S1521B 21 31.5 10 16 25 34.5 .14 S1557B 57 85.5 15 40 60 88.5 0.97
S1522B 22 33.0 10 16 25 36.0 .15 S1558B 58 87.0 15 40 60 90.0 1.00
S1523B 23 34.5 10 16 25 37.5 .17 S1559B 59 88.5 15 40 60 91.5 1.05
S1524B 24 36.0 10 16 25 39.0 .18 S1560B 60 90.0 15 40 60 93.0 1.10
S1525B 25 37.5 10 16 25 40.5 .19 S1561B 61 91.5 20 46 70 94.5 1.20
S1526B 26 39.0 12 20 30 42.0 .20 S1562B 62 93.0 20 46 70 96.0 1.23
S1527B 27 40.5 12 20 30 43.5 .21 S1563B 63 94.5 20 46 70 97.5 1.25
S1528B 28 42.0 12 20 30 45.0 .22 S1564B 64 96.0 20 46 70 99.0 1.27
S1529B 29 43.5 12 20 30 46.5 .23 S1565B 65 97.5 20 46 70 100.5 1.30
S1530B 30 45.0 12 20 30 48.0 .25 S1566B 66 99.0 20 46 70 102.0 1.35
S1531B 31 46.5 12 24 35 49.5 .27 S1567B 67 100.5 20 46 70 103.5 1.38
S1532B 32 48.0 12 24 35 51.0 .28 S1568B 68 102.0 20 46 70 105.0 1.42
S1533B 33 49.5 12 24 35 52.5 .30 S1569B 69 103.5 20 46 70 106.5 1.45
S1534B 34 51.0 12 24 35 54.0 .32 S1570B 70 105.0 20 46 70 108.0 1.48
S1535B 35 52.5 12 24 35 55.5 .34 S1572A 72 108.0 20 65 _ 111.0 1.18
S1536B 36 54.0 12 24 35 57.0 .36 S1575A 75 112.5 20 68 _ 115.5 1.28
S1537B 37 55.5 12 27 40 58.5 .38 S1576A 76 114.0 20 68 _ 117.0 1.32
S1538B 38 57.0 12 27 40 60.0 .40 S1580A 80 120.0 20 72 _ 123.0 1.45
S1539B 39 58.5 12 27 40 61.5 .42 S1585A 85 127.5 20 80 _ 130.5 1.60
S1540B 40 60.0 12 27 40 63.0 .45 S1590A 90 135.0 20 85 _ 138.0 1.85
S1541B 41 61.5 14 34 50 64.5 .52 S1595A 95 142.5 20 90 _ 145.5 2.04
S1542B 42 63.0 14 34 50 66.0 .55 S15100A 100 150.0 20 95 _ 153.0 2.30
S1543B 43 64.5 14 34 50 67.5 .57 S15110A 110 165.0 20 105 _ 168.0 2.81
S1544B 44 66.0 14 34 50 69.0 .60 S15114A 114 171.0 20 107 _ 174.0 3.30
S1545B 45 67.5 14 34 50 70.5 .62 S15120A 120 180.0 20 115 _ 183.0 3.39
S1546B 46 69.0 14 34 50 72.0 .65 S15127A 127 190.5 20 120 _ 193.5 3.78
S1547B 47 70.5 14 34 50 73.5 .68

10

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Standard Spur Gears
B A
B
Dimensions tables for Spur Gears 2.0 to 6.0 Mod.
All gears machined from medium carbon steels.

Te l
Gear Widths mm

dp
D
dp
D

d
d

C
Pitch A B

+44 121 360 0155

2 Mod 35 20
2.5 Mod 40 25
3 Mod 50 30
4 Mod 60 40
5 Mod 75 50 Gear Type ‘A’ Gear Type ‘B’
6 Mod 80 60

2.0 Mod Spur Gears Suffix of Cat. No. indicates gear type
Hub OutsideDia. Weight Hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg
S2012B 12 24 10 12 18 28 .08 S2048B 48 96 16 46 70 100 1.40
S2013B 13 26 10 12 19 30 .10 S2049B 49 98 16 46 70 102 1.47
S2014B 14 28 10 13 20 32 .12 S2050B 50 100 16 46 70 104 1.55
S2015B 15 30 10 14 22 34 .14 S2051B 51 102 20 46 70 106 1.60
S2016B 16 32 10 15 24 36 .15 S2052B 52 104 20 46 70 108 1.65
S2017B 17 34 10 16 25 38 .16 S2053B 53 106 20 46 70 110 1.70
S2018B 18 36 10 16 25 40 .17 S2054B 54 108 20 46 70 112 1.75
S2019B 19 38 10 16 25 42 .19 S2055B 55 110 20 46 70 114 1.80

Fax
S2020B 20 40 10 20 30 44 .24 S2056B 56 112 20 46 70 116 1.87
S2021B 21 42 12 20 30 46 .25 S2057B 57 114 20 46 70 118 1.94
S2022B 22 44 12 20 30 48 .27 S2058B 58 116 20 46 70 120 2.00
S2023B 23 46 12 20 30 50 .29 S2059B 59 118 20 46 70 122 2.07
S2024B 24 48 12 24 35 52 .33 S2060B 60 120 20 46 70 124 2.15
S2025B 25 50 12 24 35 54 .36 S2061B 61 122 20 54 80 126 2.25

+44 121 325 1079

S2026B 26 52 12 27 40 56 .41 S2062B 62 124 20 54 80 128 2.30
S2027B 27 54 12 27 40 58 .45 S2063B 63 126 20 54 80 130 2.35
S2028B 28 56 12 27 40 60 .48 S2064B 64 128 20 54 80 132 2.40
S2029B 29 58 14 27 40 62 .51 S2065B 65 130 20 54 80 134 2.45
S2030B 30 60 14 27 40 64 .54 S2066B 66 132 20 54 80 136 2.60
S2031B 31 62 14 30 45 66 .60 S2067B 67 134 20 54 80 138 2.67
S2032B 32 64 14 30 45 68 .63 S2068B 68 136 20 54 80 140 2.74
S2033B 33 66 14 30 45 70 .66 S2069B 69 138 20 54 80 142 2.82
S2034B 34 68 14 30 45 72 .69 S2070B 70 140 20 54 80 144 2.90
S2035B 35 70 14 30 45 74 .72 S2072A 72 144 20 90 _ 148 2.53
S2036B 36 72 14 30 45 76 .76 S2075A 75 150 20 94 _ 154 2.72
S2037B 37 74 14 34 50 78 .85 S2076A 76 152 20 95 _ 156 2.80
S2038B 38 76 14 34 50 80 .87 S2080A 80 160 20 98 _ 164 3.04
S2039B 39 78 14 34 50 82 .89 S2085A 85 170 20 104 _ 174 3.40
S2040B 40 80 14 34 50 84 .91 S2090A 90 180 20 110 _ 184 3.85
S2041B 41 82 16 40 60 86 1.05 S2095A 95 190 20 116 _ 194 4.34
S2042B 42 84 16 40 60 88 1.10 S20100A 100 200 20 122 _ 204 4.85
S2043B 43 86 16 40 60 90 1.15 S20110A 110 220 20 134 _ 224 5.80
S2044B 44 88 16 40 60 92 1.20 S20114A 114 228 20 140 _ 232 6.30
S2045B 45 90 16 40 60 94 1.25 S20120A 120 240 20 148 _ 244 6.95
S2046B 46 92 16 40 60 96 1.30 S20127A 127 254 20 157 _ 258 7.90
S2047B 47 94 16 40 60 98 1.35

2.5 Mod Spur Gears

Email
Hub OutsideDia. Weight Hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg
S2512B 12 30.0 10 14 22 35.0 .16 S2544B 44 110.0 20 46 70 115.0 2.22
S2513B 13 32.5 10 16 25 37.5 .20 S2545B 45 112.5 20 46 70 117.5 2.31
S2514B 14 35.0 10 19 28 40.0 .28 S2546B 46 115.0 20 46 70 120.0 2.39
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S2515B 15 37.5 10 20 30 42.5 .36 S2547B 47 117.5 20 54 80 122.5 2.62

S2516B 16 40.0 12 21 32 45.0 .37 S2548B 48 120.0 20 54 80 125.0 2.71
S2517B 17 42.5 12 24 35 47.5 .38 S2549B 49 122.5 20 54 80 127.5 2.81
S2518B 18 45.0 12 24 35 50.0 .40 S2550B 50 125.0 20 54 80 130.0 2.90
S2519B 19 47.5 12 24 35 52.5 .42 S2551B 51 127.5 20 54 80 132.5 3.00
S2520B 20 50.0 14 27 40 55.0 .50 S2552B 52 130.0 20 60 90 135.0 3.25
S2521B 21 52.5 14 27 40 57.5 .53 S2553B 53 132.5 20 60 90 137.5 3.35
S2522B 22 55.0 14 30 45 60.0 .57 S2554B 54 135.0 20 60 90 140.0 3.46
S2523B 23 57.5 14 30 45 62.5 .60 S2555B 55 137.5 20 60 90 142.5 3.57
S2524B 24 60.0 14 30 45 65.0 .68 S2556B 56 140.0 20 67 100 145.0 3.84
S2525B 25 62.5 14 34 50 67.5 .78 S2557B 57 142.5 20 67 100 147.5 3.90
S2526B 26 65.0 14 34 50 70.0 .82 S2558B 58 145.0 20 67 100 150.0 4.07
S2527B 27 67.5 14 34 50 72.5 .87 S2559B 59 147.5 20 67 100 152.5 4.18
S2528B 28 70.0 14 34 50 75.0 .90 S2560B 60 150.0 20 67 100 155.0 4.39
S2529B 29 72.5 14 34 50 77.5 .95 S2565A 65 162.5 20 100 _ 167.5 4.00
S2530B 30 75.0 16 36 55 80.0 1.10 S2570A 70 175.0 20 108 _ 180.0 4.85
S2531B 31 77.5 16 36 55 82.5 1.15 S2572A 72 180.0 20 110 _ 185.0 5.05
S2532B 32 80.0 16 36 55 85.0 1.21 S2575A 75 187.5 20 115 _ 192.5 5.33
S2533B 33 82.5 16 36 55 87.5 1.27 S2576A 76 190.0 20 117 _ 195.0 5.50
S2534B 34 85.0 16 36 55 90.0 1.30 S2580A 80 200.0 25 123 _ 205.0 6.02
S2535B 35 87.5 16 40 60 92.5 1.43 S2585A 85 212.5 25 131 _ 217.5 6.90
S2536B 36 90.0 16 40 60 95.0 1.51 S2590A 90 225.0 25 140 _ 230.0 7.71
S2537B 37 92.5 16 40 60 97.5 1.58 S2595A 95 237.5 25 148 _ 242.5 8.60
S2538B 38 95.0 16 40 60 100.0 1.68 S25100A 100 250.0 25 156 _ 255.0 9.50
S2539B 39 97.5 16 40 60 102.5 1.73 S25110A 110 275.0 25 172 _ 280.0 11.56
S2540B 40 100.0 20 46 70 105.0 1.80 S25114A 114 285.0 25 178 _ 290.0 12.40
S2541B 41 102.5 20 46 70 107.5 1.97 S25120A 120 300.0 25 188 _ 305.0 13.87
S2542B 42 105.0 20 46 70 110.0 2.05 S25127A 127 317.5 25 200 _ 322.5 15.40
S2543B 43 107.5 20 46 70 112.5 2.14

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Standard Spur Gears
3.0 Mod Spur Gears
hub OutsideDia. Weight hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg

S3012B 12 36 12 16 25 42 .27 S3040B 40 120 20 54 80 126 3.23

S3013B 13 39 12 16 25 45 .30 S3041B 41 123 20 60 90 129 3.67
S3014B 14 42 12 20 30 48 .35 S3042B 42 126 20 60 90 132 3.81
S3015B 15 45 12 24 35 51 .45 S3043B 43 129 20 60 90 135 3.95

Te l
S3016B 16 48 15 26 38 54 .55 S3044B 44 132 20 60 90 138 4.02
S3017B 17 51 15 28 42 57 .65 S3045B 45 135 20 60 90 141 4.15
S3018B 18 54 15 30 45 60 .75 S3046B 46 138 20 60 90 144 4.30
S3019B 19 57 15 30 45 63 .82 S3047B 47 141 20 60 90 147 4.45
S3020B 20 60 15 30 45 66 .90 S3048B 48 144 20 65 100 150 4.85
_

+44 121 360 0155

S3021B 21 63 15 30 45 69 .96 S3050A 50 150 25 92 156 4.00
S3022B 22 66 15 34 50 72 1.08 S3052A 52 156 25 96 _ 162 4.30
S3023B 23 69 15 34 50 75 1.16 S3055A 55 165 25 102 _ 171 4.85
S3024B 24 72 16 34 50 78 1.22 S3057A 57 171 25 106 _ 177 5.20
S3025B 25 75 16 40 60 81 1.30 S3060A 60 180 25 112 _ 186 5.80
S3026B 26 78 16 40 60 84 1.40 S3065A 65 195 25 125 _ 201 6.80
S3027B 27 81 16 40 60 87 1.50 S3070A 70 210 25 128 _ 216 7.90
S3028B 28 84 16 40 60 90 1.63 S3072A 72 216 25 132 _ 222 8.40
S3029B 29 87 16 40 60 93 1.76 S3075A 75 225 25 138 _ 231 9.10
S3030B 30 90 16 40 60 96 1.90 S3076A 76 228 25 140 _ 234 9.40
S3031B 31 93 20 46 70 99 2.00 S3080A 80 240 25 148 _ 246 10.40
S3032B 32 96 20 46 70 102 2.12 S3085A 85 255 25 153 _ 261 11.90
S3033B 33 99 20 46 70 105 2.25 S3090A 90 270 25 163 _ 276 13.20
S3034B 34 102 20 46 70 108 2.37 S3095A 95 285 25 174 _ 291 14.95
S3035B 35 105 20 46 70 111 2.50 S30100A 100 300 25 185 _ 306 16.45
S3036B 36 108 20 46 70 114 2.63 S30110A 110 330 25 195 _ 336 20.00
S3037B 37 111 20 54 80 117 2.86 S30114A 114 342 25 205 _ 346 21.50
S3038B 38 114 20 54 80 120 2.98 S30120A 120 360 25 215 _ 366 23.70
S3039B 39 117 20 54 80 123 3.10 S30127A 127 381 25 230 _ 387 26.74

4.0 Mod Spur Gears

hub OutsideDia. Weight hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore
No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C D Cat. No. C D
kg dp d kg

Fax
S4012B 12 48 14 24 35 56 .60 S4035B 35 140 20 54 80 148 5.40
S4013B 13 52 14 27 40 60 .75 S4036B 36 144 20 54 80
_ 152 5.70
S4014B 14 56 14 30 45 64 .90 S4038A 38 152 25 90 _ 160 5.54
S4015B 15 60 14 30 45 68 1.05 S4040A 40 160 25 95 _ 168 6.00

+44 121 325 1079

S4016B 16 64 15 34 50 72 1.18 S4045A 45 180 25 108 _ 188 7.70
S4017B 17 68 15 34 50 76 1.25 S4048A 48 192 25 116 _ 200 8.70
S4018B 18 72 15 34 50 80 1.40 S4050A 50 200 25 122 _ 208 9.71
S4019B 19 76 15 40 60 84 1.60 S4052A 52 208 25 127 _ 216 10.51
S4020B 20 80 15 40 60 88 1.80 S4055A 55 220 25 135 _ 228 11.60
S4021B 21 84 20 46 70 92 2.20 S4057A 57 228 25 140 _ 236 12.70
S4022B 22 88 20 46 70 96 2.30 S4060A 60 240 25 148 _ 248 13.80
S4023B 23 92 20 50 75 100 2.50 S4065A 65 260 25 161 _ 268 16.50
S4024B 24 96 20 50 75 104 2.70 S4070A 70 280 25 175 _ 288 18.25
S4025B 25 100 20 50 75 108 2.90 S4075A 75 300 25 188 _ 308 22.80
S4026B 26 104 20 50 75 112 3.10 S4076A 76 304 25 190 _ 312 22.95
S4027B 27 108 20 50 75 116 3.35 S4080A 80 320 25 200 _ 328 25.10
S4028B 28 112 20 50 75 120 3.50 S4085A 85 340 25 214 _ 348 28.00
S4029B 29 116 20 50 75 124 3.75 S4090A 90 360 25 227 _ 368 31.25
S4030B 30 120 20 50 75 128 3.95 S4095A 95 380 25 240 _ 388 35.20
S4031B 31 124 20 54 80 132 4.30 S40100A 100 400 25 254 _ 408 39.00
S4032B 32 128 20 54 80 136 4.50 S40110A 110 440 25 280 _ 448 47.60
S4033B 33 132 20 54 80 140 4.70 S40114A 114 456 25 290 464 51.00
S4034B 34 136 20 54 80 144 5.20

5.0 Mod Spur Gears

hub Outside hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore Weight No. Teeth Pitch Dia. Min Bore Max. Bore
Cat. No. Dia. Cat. No.

Email
dp d C kg dp d C D kg
D
S5012B 12 60 16 30 45 70 1.40 S5038A 38 190 30 110 _ 200 10.85
S5013B 13 65 16 34 50 75 1.57 S5040A 40 200 30 116 _ 210 12.05
S5014B 14 70 20 36 55 80 1.90 S5045A 45 225 30 126 _ 235 15.32
S5015B 15 75 20 40 60 85 2.10 S5048A 48 240 30 141 _ 250 17.50
S5016B 16 80 20 43 65 90 2.44 S5050A 50 250 30 147 _ 260 19.00
S5017B 17 85 20 46 70 95 2.80 S5052A 52 260 30 154 _ 270 20.50
_
sales@crossmorse.com

S5018B 18 90 20 46 70 100 3.07 S5055A 55 275 30 164 285 23.04

S5019B 19 95 20 46 70 105 3.35 S5057A 57 285 30 170 _ 295 24.76
S5020B 20 100 20 54 80 110 3.88 S5060A 60 300 30 180 _ 310 27.40
S5021B 21 105 20 54 80 115 4.20 S5065A 65 325 30 196 _ 335 32.28
S5022B 22 110 25 54 80 120 4.60 S5070A 70 350 30 212 _ 360 37.48
S5023B 23 115 25 60 90 125 5.04 S5075A 75 375 30 228 _ 385 43.07
S5024B 24 120 25 60 90 130 5.40 S5076A 76 380 30 230 _ 390 44.23
S5025B 25 125 25 60 90 135 5.78 S5080A 80 400 30 243 _ 410 49.30
S5026B 26 130 25 67 100 140 6.69 S5085A 85 425 30 260 _ 435 55.50
S5027B 27 135 25 67 100 145 6.88 S5090A 90 450 30 275 _ 460 62.20
S5028B 28 140 25 67 100 150 7.30 S5095A 95 475 30 290 _ 485 69.35
S5029B 29 145 25 67 100 155 7.90 S50100A 100 500 30 305 _ 510 76.90
S5030B 30 150 25 67 100 160 8.38 S50110A 110 550 30 340 _ 560 96.50
S5032A 32 160 25 90 _ 170 8.00 S50114A 114 570 30 350 _ 580 103.55
S5035A 35 175 25 100 _ 185 9.40

6.0 Mod Spur Gears

hub Outside hub OutsideDia. Weight
No. Teeth Pitch Dia. Min Bore Max. Bore Weight No. Teeth Pitch
Cat. No. Dia. Min Bore Max. Bore
dp d C Dia. Cat. No. C D
kg dp d kg
D
_ _
S6012B 12 72 _ 36 54 84 2.05 S6025B 25 150 74 110
_ 162 9.50
S6013B 13 78 _ 40 60 90 2.50 S6028A 28 168 25 100 _ 180 10.20
S6015B 15 90 _ 46 70 102 3.40 S6030A 30 180 25 108 _ 192 11.75
S6016B 16 96 _ 50 75 108 3.90 S6032A 32 192 25 116 _ 204 13.40
S6018B 18 108 _ 54 80 120 4.90 S6035A 35 210 25 128 _ 222 16.10
S6020B 20 120 _ 60 90 132 6.15 S6038A 38 228 25 138 _ 240 19.02
S6021B 24 144 74 110 156 8.85 S6040A 40 240 25 145 252 21.10

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