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1.3/4inch Pitch (28B1) Simplex Chain Sprocket
Transmissions Chain Sprockets Pilot Bore Sprockets
We are a leading supplier of 28B1 (1.3/4inch pitch) simplex pilot bore chain sprockets, essential components for power transmission systems in industrial machinery. These British standard roller chain sprockets feature a pilot bore design, allowing for precise machining to your exact shaft requirements, making them ideal for custom installations and replacements. Our comprehensive range includes 26 different tooth configurations, from 8 to 35 teeth, with outside diameters ranging from 132mm to 514mm, boss diameters from 74mm to 180mm, and pilot bore sizes of either 25mm or 30mm depending on the sprocket size. All our 28B1 simplex sprockets are manufactured by Medway to exacting standards, ensuring reliable performance in demanding industrial applications such as conveyor systems, manufacturing equipment, and heavy machinery. Whether you need a single replacement sprocket or multiple units for a new installation, our UK-based warehouse stocks these quality components ready for quick dispatch, and our technical team is available to help you select the correct specification for your application.
Boss Dia
180mm
180mm
Number of Teeth
35
35
Outside Dia
514mm
514mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
180mm
180mm
Number of Teeth
34
34
Outside Dia
500mm
500mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
180mm
180mm
Number of Teeth
33
33
Outside Dia
486mm
486mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
180mm
180mm
Number of Teeth
32
32
Outside Dia
472mm
472mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
30
30
Outside Dia
444mm
444mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
28
28
Outside Dia
416mm
416mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
27
27
Outside Dia
401.4mm
401.4mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
26
26
Outside Dia
387mm
387mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
25
25
Outside Dia
373mm
373mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
24
24
Outside Dia
359mm
359mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
23
23
Outside Dia
345mm
345mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
22
22
Outside Dia
331mm
331mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
21
21
Outside Dia
317mm
317mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
20
20
Outside Dia
303mm
303mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
19
19
Outside Dia
289mm
289mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
18
18
Outside Dia
274mm
274mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
17
17
Outside Dia
260mm
260mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
160mm
160mm
Number of Teeth
16
16
Outside Dia
246.3mm
246.3mm
Overall Length
75mm
75mm
Pilot Bore Size
30mm
30mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
125mm
125mm
Number of Teeth
15
15
Outside Dia
232.3mm
232.3mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
125mm
125mm
Number of Teeth
14
14
Outside Dia
218.2mm
218.2mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
125mm
125mm
Number of Teeth
13
13
Outside Dia
204.2mm
204.2mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
125mm
125mm
Number of Teeth
12
12
Outside Dia
189.5mm
189.5mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
112mm
112mm
Number of Teeth
11
11
Outside Dia
176.3mm
176.3mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
100mm
100mm
Number of Teeth
10
10
Outside Dia
162.3mm
162.3mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
88mm
88mm
Number of Teeth
9
9
Outside Dia
148.4mm
148.4mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
Boss Dia
74mm
74mm
Number of Teeth
8
8
Outside Dia
132mm
132mm
Overall Length
70mm
70mm
Pilot Bore Size
25mm
25mm
Pitch
1.3/4inch
1.3/4inch
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