Sprockets - Roller Chain - Simplex - 25-1A - With Boss - Plain Bore

7 Products in this selection
  • 25-1 ASA 1/4 Inch. With unfinished bore.
  • Match with 6.35mm simplex chain
  • American Standard 25-1 - 1/4 inch
Additional resources:
A more concise listing may be found on the Smallparts store at Sprockets - Roller Chain - Simplex - 25-1A - With Boss - Plain Bore. Smallparts promote the most popular MBA products.
Teeth PCD Hub Diameter (D1) Overall Width (E) Type / Rows Indicative
Image
Teeth
8
PCD
16.16
mm

(0.636 in.)
Hub Diameter (D1)
10.00
mm

(0.394 in.)
Overall Width (E)
12.80
mm
Type / Rows
Type 3s
Roller Chain Sprockets - 8 tooth - 16.16x10 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 6.000    Locking Method: Set Screw   
Part Number: SP1-064-028B-008-060-C Roller Chain Sprockets - 8 tooth - 16.16x10 mm - Carbon Steel
1 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$14.00 AUD
$26.60 AUD $14.00 AUD
Each
Teeth PCD Hub Diameter (D1) Overall Width (E) Indicative
Image
Teeth
8
PCD
16.16
mm

(0.636 in.)
Hub Diameter (D1)
10.00
mm

(0.394 in.)
Overall Width (E)
12.80
mm
Roller Chain Sprockets - 8 tooth - 16.16x10 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3s    Approx Pilot Bore (d): 6.000    Locking Method: Set Screw   
Part Number: SP1-064-028B-008-060-C Roller Chain Sprockets - 8 tooth - 16.16x10 mm - Carbon Steel
1 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$14.00 AUD
$26.60 AUD $14.00 AUD
Each
Teeth
9
PCD
18.18
mm

(0.716 in.)
Hub Diameter (D1)
11.13
mm

(0.438 in.)
Overall Width (E)
12.70
mm
Type / Rows
Type 3
Roller Chain Sprockets - 9 tooth - 18.18x11.13 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-009-064-C Roller Chain Sprockets - 9 tooth - 18.18x11.13 mm - Carbon Steel
1 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$4.00 AUD
$7.60 AUD $4.00 AUD
Each
Teeth
9
PCD
18.18
mm

(0.716 in.)
Hub Diameter (D1)
11.13
mm

(0.438 in.)
Overall Width (E)
12.70
mm
Roller Chain Sprockets - 9 tooth - 18.18x11.13 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-009-064-C Roller Chain Sprockets - 9 tooth - 18.18x11.13 mm - Carbon Steel
1 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$4.00 AUD
$7.60 AUD $4.00 AUD
Each
Teeth
12
PCD
24.25
mm

(0.955 in.)
Hub Diameter (D1)
16.66
mm

(0.656 in.)
Overall Width (E)
12.70
mm
Type / Rows
Type 3
Roller Chain Sprockets - 12 tooth - 24.25x16.66 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-012-064-C Roller Chain Sprockets - 12 tooth - 24.25x16.66 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
12
PCD
24.25
mm

(0.955 in.)
Hub Diameter (D1)
16.66
mm

(0.656 in.)
Overall Width (E)
12.70
mm
Roller Chain Sprockets - 12 tooth - 24.25x16.66 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-012-064-C Roller Chain Sprockets - 12 tooth - 24.25x16.66 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
15
PCD
30.31
mm

(1.193 in.)
Hub Diameter (D1)
22.23
mm

(0.875 in.)
Overall Width (E)
12.70
mm
Type / Rows
Type 3
Roller Chain Sprockets - 15 tooth - 30.31x22.23 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-015-064-C Roller Chain Sprockets - 15 tooth - 30.31x22.23 mm - Carbon Steel
5 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
15
PCD
30.31
mm

(1.193 in.)
Hub Diameter (D1)
22.23
mm

(0.875 in.)
Overall Width (E)
12.70
mm
Roller Chain Sprockets - 15 tooth - 30.31x22.23 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-015-064-C Roller Chain Sprockets - 15 tooth - 30.31x22.23 mm - Carbon Steel
5 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
20
PCD
40.41
mm

(1.591 in.)
Hub Diameter (D1)
32.54
mm

(1.281 in.)
Overall Width (E)
15.88
mm
Type / Rows
Type 3
Roller Chain Sprockets - 20 tooth - 40.41x32.54 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-020-064-C Roller Chain Sprockets - 20 tooth - 40.41x32.54 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
20
PCD
40.41
mm

(1.591 in.)
Hub Diameter (D1)
32.54
mm

(1.281 in.)
Overall Width (E)
15.88
mm
Roller Chain Sprockets - 20 tooth - 40.41x32.54 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): 6.350    Locking Method: No Locking   
Part Number: SP1-064-028B-020-064-C Roller Chain Sprockets - 20 tooth - 40.41x32.54 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
22
PCD
44.45
mm

(1.75 in.)
Hub Diameter (D1)
30.0
mm

(1.181 in.)
Overall Width (E)
14.0
mm
Type / Rows
Type 3
Roller Chain Sprockets - 22 tooth - 44.45x30 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): Approx 8.000    Locking Method: No Locking   
Part Number: SP1-064-028B-022-PB-C Roller Chain Sprockets - 22 tooth - 44.45x30 mm - Carbon Steel
4 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
22
PCD
44.45
mm

(1.75 in.)
Hub Diameter (D1)
30.0
mm

(1.181 in.)
Overall Width (E)
14.0
mm
Roller Chain Sprockets - 22 tooth - 44.45x30 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): Approx 8.000    Locking Method: No Locking   
Part Number: SP1-064-028B-022-PB-C Roller Chain Sprockets - 22 tooth - 44.45x30 mm - Carbon Steel
4 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
36
PCD
72.74
mm

(2.864 in.)
Hub Diameter (D1)
38.10
mm

(1.5 in.)
Overall Width (E)
15.88
mm
Type / Rows
Type 3
Roller Chain Sprockets - 36 tooth - 72.74x38.1 mm - Carbon Steel
Material: Carbon Steel    Approx Pilot Bore (d): 9.525    Locking Method: No Locking   
Part Number: SP1-064-028B-036-095-C Roller Chain Sprockets - 36 tooth - 72.74x38.1 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Teeth
36
PCD
72.74
mm

(2.864 in.)
Hub Diameter (D1)
38.10
mm

(1.5 in.)
Overall Width (E)
15.88
mm
Roller Chain Sprockets - 36 tooth - 72.74x38.1 mm - Carbon Steel
Material: Carbon Steel    Type / Rows: Type 3    Approx Pilot Bore (d): 9.525    Locking Method: No Locking   
Part Number: SP1-064-028B-036-095-C Roller Chain Sprockets - 36 tooth - 72.74x38.1 mm - Carbon Steel
3 Available Immediately | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each