BS (28B) Sprockets – 1 3/4

BS (28B) Sprockets – 1 3/4

Tooth radius: r3 = 44
Radius size: C = 5
Tooth width: B1 = 29.4
Tooth width: b1 = 28.8
Tooth width: B2 = 88.4
Tooth width: B3 = 148

No.
teeth
Outside
dia. de
Pitch
dia. dp
Simplex* Duplex* Triplex*
dm D1 A dm D1 A dm D1 A
8 132.0 116.15 74 25 70 74 25 120 74 30 180
9 148.4 129.96 88 25 70 88 25 120 88 30 180
10 162.3 143.85 100 25 70 100 25 120 100 30 180
11 176.3 157.77 112 25 70 112 25 120 112 30 180
12 189.5 171.74 125 25 70 125 25 120 125 30 180
13 204.2 185.75 130 25 70 130 25 120 130 30 180
14 218.2 199.76 130 25 70 130 25 120 130 30 180
15 232.3 213.79 145 25 70 145 230 120 145 30 180
16 246.3 227.84 160 30 75 160 30 120 160 30 180
17 260.0 241.91 160 30 75 160 30 120 160 30 180
18 274.0 255.98 160 30 75 160 30 120 160 30 180
19 289.0 270.06 160 30 75 180 30 120 180 180
20 303.0 284.15 160 30 75 180 30 120 180 30 180
21 317.0 298.24 170 30 75 180 30 120 180 30 180
22 331.0 312.34 170 30 75 180 30 120 180 30 180
23 345.0 326.44 170 30 75 180 30 120 180 30 180
24 359.0 340.55 170 30 75 180 30 120 180 30 180
No.
teeth
Outside
dia. de
Pitch
dia. dp
Simplex* Duplex* Triplex*
dm D1 A dm D1 A dm D1 A
25 373 354.66 170 30 75 180 30 120 180 40 180
26 387 368.77 170 30 75 180 30 120 180 40 180
27 401.4 382.88 170 30 75 180 30 120 180 40 180
28 416 397.00 170 30 75 180 30 120 180 40 180
29 430 411.12 170 30 75 180 30 120
30 444 425.24 170 30 75 180 30 120 180 40 180
31 458 439.37 180 30 75
32 472 453.49 180 30 75
33 486 467.62 180 30 75
34 500 481.75 180 30 75
35 514 495.88 180 30 75 200 30 120 200 40 180
36 529 510.01 180 30 75
37 543 524.14 180 30 75
38 557 538.27 180 30 75 200 30 120 200 40 180
39 571 552.40 180 30 75
40 585 566.54 180 30 75 200 30 120 200 40 180

*Bore Ø H12
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard: to DIN 8187 ISO/R 606

Available from stock

Special order – typically 7-10 days