optigear brochure new - tradeindia
TRANSCRIPT
I N D U S T R I A L G E A R B O X E S
TRANSMISSION GEARS
The Shaft Mounted Speed Reducer is provides a very
convenient method of reducing speed, since it is mounted
directly on the driven shaft instead of requiring foundations of its
own. It eliminates the use of one, and sometimes two, flexible
couplings and external belt take-up arrangements.
A torque-arm anchors the Reducer and provides quick, easy
adjustment of the V-Belts by means of its turnbuckle. The
Optogear Speed Reducer is manufactured in eight gear case
sizes, designated by the letters B to H. The eight sizes may have
anyone of three nominal gear ratios, 5: 1, 13: 1 and 20: 1.
A very wide choice of final driven speed can be determined by
the use of an appropriate input V -Belt drive. The units will
normally be oil lubricated, but they are equally suitable for
"lubricated for life" greases.
Shaft Mounted Speed Reducer
Output Hub
Bored hubs and bushes available to suit international standard shaft diameters. The hubs are fitted with dual purpose fixing/extraction coilqrs.
Case design
Close grain cast iron construction, precision bored accurate in-Iine assembly
Bearings and Oilseals
Bearings are adequately proportioned to ISO dimension plan, readily available world-wide.
Gears
Helical form alloy steels, gas carburised and hardened ensuring low noise emission.
Shafts
Machined from alloy steels on journals, gear seatings and extensions. Tolerances & keyways conform to international standards.
TRANSMISSION GEARS
TRANSMISSION GEARS
SELECTION PROCEDURE
(a) Service Factor - From T able 1 select the service factor applicable to the drive.
(b) Design Power - Multiply the absorbed power (or motor power if absorbed power not known) by the service factor chosen in step (a).Note: Ensure that design power exceeds motor rated power.
(c) Peak Load - Divide any peak load by two.
(d) Unit Selection - Using the greater value of steps (b) and (c) refer to the Power Rating Tables and select the correct size of unit. The choice of single or double reduction gearbox will be determined by the output speed required The normal operating speeds for each of the gearboxes may be observed in the Power Rating Tables. For other speeds CONSULT OPTIGEAR.Note: 5.1 Units require special selection when fitted with backstops CONSULT OPTIGEAR
Selection of Associated Drive for 1440 rev/min Electric Motors
(e) Output Speed - Refer to the Drive Seiection Tables and under the appropriate gearbox size and ratio read down the column headed 'Output Speed' until an output speed equal or near to that required is found
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123
(I) Pulley Diameters - Read across from the chosen output speed to obtain both driving and driven pulley pitch diameters and the appropriate number of belts.
(g) Centre Distance - Belt length and centre distance can be found by referring to pages 2 & 4 of Wedge Belt catalogue.
Selection of Associated Drive for Driving Speeds other than 1440 rev/min
(h) Design Power - Obtain from the Power Rating Tables the rated power of the gearbox at the required output speed and use it as the design power for the drive
(i) Gearbox Input Shaft Speed - Multiply the gearbox output speed by the exact gear ratio to obtain the gearbox input shaft speed
(j) Selection of V-Drive - Combination of pulleys can be chosen It is advisable not to select a gearbox pulley smaller than that shown in the drive tables for the approximate speed required
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TABLE - SERVICE FACTORS
Types of Driven MachineOperational Hours Per Day
Under 10 10 to 16 16 and over
UniformAgitators and Mixers-Iiquid or semi-liquidBlowers -cenfrifugalBottling MachinesConveyors and Elevafors - uniformiy loadedCookersLaundry Washing Machines -non-reversingLine ShaftsPumps - centrifugal and gearWire Drawing Machines
Moderafe ShockAgitators and Mixers - variabie densityConveyors - not uniformiy loadedCranes, travel motion and hoistingDrawbenchFeeders - puisating loadHoistsKilnsLaundry TumblersLiftsPiston Pumps - with 3 or more cylindersPulp and Paper Making MachineryRubber Mixer. and CalendersRotary ScreensTextile Machinery
Heavy ShockBrick PressesBriquetting MachinesConveyors - reciprocating and shakerCrushersFeeders - reclprocatingHammer MillsPiston Pumps - 1 or 2 cylindersRubber MasficatorsVibrating Machines
1.0 1.12 1.25
1.6 1.8 2.0
1.0 1.12 1.25
Shaft Mounted Speed Reducer
Shaft Mounted Speed ReducerTABLE - POWER RATINGS (kw)5:1 UNITS
Torque at50rev/min
Nm246 351 607 976 1339 2426 3400.0 6017.0
OutputRev/Min
BO5 CO5 DO5 EO5 FO5 GO5 HO5 JO5
The dotted line shows the speed limitation for 5:1 unit with backstops: for slow speed operation - CONSULT Optigear
5060708090
100110120130140
150160170180190
200210220230240
250260270280290
300310320330340
350360370380390400
1.291.401.511.621.73
1.841.962.072.182.30
2.412.532.642.762.88
2.993.113.233.353.46
3.543.703.823.934.05
4.174.284.404.514.63
4.744.854.975.085.195.30
1.842.052.262.462.66
2.853.033.203.373.54
3.703.854.004.144.28
4.414.544.674.794.91
5.025.135.245.355.45
5.555.655.755.855.94
6.046.136.226.326.416.50
3.183.513.824.134.43
4.735.015.295.565.82
6.086.336.576.817.03
7.267.477.687.888,06
8.248.418.588.758.91
9.079.239.399.559.71
9.8710.010.210.410.510.7
5.115.586.036.476.89
7.307.708.098.468.82
9.179.529.8510.210.5
10.811.111.411.711.9
12.212.512.713.013.2
13.513.714.014.214.5
14.714.915.215.415.715.9
7.017.738.439.119.76
10.411.011.612.112.7
13.213.714.214.615.1
15.515.916.316.717.1
17.417.718.018.418.6
18.919.219.419.719.8
20.120.420.620.820.921.1
12.713.614.615.516.4
17.318.319.220.221.1
22.022.923.924.825.7
26.627.428.329.230.0
30.931.732.533.234.0
34.735.536.236.837.5
38.138.739.339.840.340.8
17.819.320.722.223.6
25.026.427.829.130.5
31.833.134.435.736.9
38.139.340.541.642.7
43.744.845.846.747.7
48.549.450.251.051.7
52.353.053.654.154.655.0
31.537.042.247.753.3
59.264.069.073.075.4
78.081.084.086.089.0
92.094.097.099.0
102.0
104.0106.0108.0110.0111.0
113.0117.0118.0119.0119:5
120.0122.0123.0124.0125.0127.8
POWER RATINGS (kw) 13:1 AND 20:1 UNITS
Output
Rev/Min
B13
B20
H13
H20
J13
J20
G13
G20
F13
F20
E13
E20
D13
D20
C13
C20
1012141618
2022242628
3032343638
4042444648
5052545658
6062646668
7072747678
80859095
100
105110
115120140
160180
0.270.330.380.430.48
0.540.580.630.680.74
0.790.840.890.951.00
1.051.091.141.191.24
1.291.341.391.441.49
1.541.601.641.691.73
1.791.831.871.921.96
2.022.132.252.372.48
2.592.71
2.823.003.48
3.894.35
0.450.530.610.700.79
0.870.951.031.111.20
1.281.371.451.531.62
1.701.791.861.942.02
2.092.162.242.312.38
2.482.522.592.672.74
2.812.892.953.023.10
3.173.353.543.743.92
4.124.32
4.504.815.30
5.916.60
0.760.891.031.181.31
1.461.601.731.872.02
2.152.292.432.562.70
2.842.963.103.223.36
3.503.633.763.904.02
4.154.284.424.554.67
4.804.945.065.195.53
5.435.746.066.376.68
6.997.30
7.598.019.35
1.161.381.601.822.04
2.252.472.682.903.11
3.323.533.743.954.15
4.364.564.774.975.18
5.385.585.775.976.17
6.376.576.776.977.16
7.367.567.757.958.14
8.348.819.299.7710.2
10.711.1
1.822.162.512.863.19
3.543.874.214.554.88
5.215.545.876.206.52
6.857.177.497.818.11
8.398.688.979.269.54
9.8210.110.210.710.9
11.211.411.812.112.3
12.613.313.914.715.4
16.216.9
2.883.433.984.535.07
5.626.146.687.207.73
8.258.789.299.8110.3
10.811.311.912.412.8
13.313.914.414.815.3
15.916.316.817.217.7
18.318.719.219.620.2
20.621.823.024.225.3
4.525.476.307.118.01
8.799.6410.511.212.1
12.913.814.515.316.1
16.917.618.519.220.0
20.721.322.122.823.5
24.325.025.726.527.1
27.828.529.129.730.5
3.1232.934.436.137.7
7.268.499.9511.212.6
14.015.216.617.919.1
20.421.522.823.925.1
26.327.428.629.630.8
31.833.034.035.236.2
37.338.339.540.541.6
42.643.844.845.946.9
47.850.352.755.257.6
The dotted line shows the limit of recommended output speed for reducers with 20: 1 ratio. For higher speeds use a 13: lor 5: 1 reducer.
Torque at10 rev/min
Nm260 431 722 1103 1733 2751 4316 6930
All dimensions are in mm. Keyways are British Standard metric.
Shaft Mounted Speed Reducer Dimensions
Dimenison B C D E F G H
143
30
63
52
80
19
15
104
131
55
30
25
75
5
13
204
385
920
770
186
226
81
75
25
79
6x3.5x50
17
152
55
76
59
100
25
17
118
188
76
30
25
75
5
13
204
385
920
770
258
328
117
110
37
116
8x4x67
34
160
55
87
65
110
28
20
130
219
90
30
25
75
5
13
204
385
920
770
278
376
129
125
43
133
8x4x73.50
45
192
65
113
75
131
32
20
150
255
100
80
65
125
20
16
255
375
900
750
330
440
156
141
50
150
10x5x85
72
212
75
108
86
140
42
20
172
255
110
80
65
125
20
16
255
375
900
750
365
468
162
156
56
166
12x5x90
97
242
85
116
95
170
48
26
190
330
137
80
65
125
20
16
255
375
900
750
434
550
195
189
62
200
14x5.5x100
146
142
40
72
65
90
22
17
108
156
59
30
25
75
5
13
204
385
920
770
218
270
96
90
31
95
6x3.5x56
23
A
B
C
D
E
F
G
H
J
K
L
M
N
O
P
Q
R
S Max
S Min
T
U
V
W
X
Y
Keyway
Weight (Kg.)
AII dimensions are subject to alteration wIthout notice:
All dimensions are in millimetres unless otherwise stated.Metric hubs are bored to F7 limits.Inch hubs are bored to H7 limits.Shaft keyways must be to appropriate standard dimensions, i.e. to B.S. 4235/IS : 2048 for metric shafts and B.S. 46 for inch shafts.
OPTIONAL EXTRASBackstops : A backstop may be incorporated on applications where it is necessary to prevent reversal of rotation. It is quickly installed within the Reducer by simply removing a cover plate.
STANDARD KEYWAYSKeyways for output hubs and bushes are machined in accordance with B.S. 4235/IS .2048 for metric shafts and B.S.. 46 for inch shafts.Keys are supplied with reduction bushes, but not where the output hubs directly fit the shaft.Reduction bushes maybe supplied with two separate keys for hub and shaft or a single stepped key, depending on the bush wall thickness.The shaft keyway should be machined to suit the standard key size shown below regardless of the hub bore diameter
ReducerSize
40
50
55
65
75
85
100
Dimension 'B’
StandardHub Bore
AlternativeHub Bore
B05B13B20
C05C13C20
D05D13D20
E05E13E20
F05F13F20
G05G13G20
H05H13H20
30
40
50
55
65
75
85
Shaft Mounted Speed Reducer
20253032353840424550556065707580859095
100110120
6 x 68 x 78 x 7
10 x 810 x 810 x 812 x 812 x 814 x 914 x 916 x 9
18 x 1118 x 1120 x 1220 x 1222 x 1422 x 1425 x 1425 x 1128 x 1628 x 1632 x 18
¾"1"
1 ¼"1 ½"1 ¾"
2"2 ¼"2 ½"2 ¾"
3"4"
4 ½”
ShaftDiameter
(mm)Keysize
ShaftDiameter(inches)
Keysize
" x
¼" x
" x
" x
" x
½" x
" x
" x
¾" x
" x
1" x
1¼" x
36
516
38
712
58
58
78
¼"
¼
¼
½
¾
116
516
516
716
716
58
"
"
"
"
"
"
"
"
78
"
"
"
Shaft Mounted Speed Reducer Output HubsOutput Hub Dimensions
Reducer Size StandardHub Bore
(1)
UpperAlternativeHub Bore
t
UpperAlternative
HubBush Bores
LowerAlternativeHub Bore
(2)
Taper-GripStandardHub Bore
Taper-GripAlternativeHub Bore
B
C
D
E
F
G
H
30
40
50
55
65
75
85
40
50
55
65
75
85
100
StandardHub
Bush Bores
-
30
40
50
55
65
75
30
40
50
55
65
75
85
25
30
38
42
50
60
65
25 1"20 ¾"
35 1¼"3230
45 1¾"42 1½"40 1¼"38
50 2"45 1¾"42 1½"
60 2¼"55 2"50
70 2¾"65 2½"60 2¼"
80 3"75 2¾"70 2½"
35 1¼"32
45 1 "38
2"
60 2¼"
70 2 2½"
80 3"
95 3½"90
2
ShaftDiameter
(mm)Key size
20253032353840424550556065707580859095
100110120125130140150190
6 x 68 x 78 x 7
10 x 810 x 810 x 812 x 812 x 814 x 914 x 9
16 x 1018 x 1118 x 1120 x 1220 x 1222 x 1422 x 1425 x 1425 x 1428 x 1628 x 1632 x 1832 x 1832 x 1836 x 2036 x 2045 x 25
STANDARD HUB KEYWAYSKeyways for the standard Output Hubs & Bushes are machined in accordance with BS 4235 for metric shafts and BS 46 for "inch" shafts.
Keys are supplied with reduction bushes, but not where the output hub directly fits the shafts.
Reduction bushes may be supplied with two separate keys for hub and shaft or a single stepped key, depending on the bush wall thickness.
The shaft keyway should be machined to suit the standard key size shown below, regardless of the hub bore diameter.
Shaft Mounted Speed Reducer
Right Angle Gearbox
Other Range of Gearboxes
JRB ENGINEERING WORKSC-3/10, Mayapuri Industrial Area,Phase-II, New Delhi - 110064Tele : +91-11-28116079, 65462686Fax : +91-11-28116079Email : [email protected], [email protected] : www. optigears.com, www.jrb.inTRANSMISSION GEARS