Home Power Transmission Sprockets Pilot Bore Sprockets ASA Pilot Bore Sprockets Finer PT 25A1-27PB Pilot Bore Sprocket – ASA 25-1 Simplex – 1/4″ Pitch – 27 Teeth
Finer PT 25A1-27PB Pilot Bore Sprocket - ASA 25-1 Simplex - 1/4" Pitch - 27 Teeth
25A1-27PB

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Finer PT

Finer PT 25A1-27PB Pilot Bore Sprocket – ASA 25-1 Simplex – 1/4″ Pitch – 27 Teeth

Part Number: 25A1-27PB
Inner Diameter (Bore) 10 mm
Outer Diameter 56.51 mm

Finer PT 25A1-27PB pilot bore sprocket for ASA 25-1 simplex roller chain. 27 teeth – 1/4″ (6.35mm) pitch – 54.69mm PCD x 56.51mm OD. 10mm pilot bore – 18mm overall length. Steel with induction hardened teeth.

Qty:
  • 1/4" (6.35mm) pitch - 54.69mm PCD
  • 10mm pilot bore - machine out to suit your shaft and keyway
  • 27 tooth pilot bore sprocket for ASA 25-1 simplex roller chain
  • Engineered in accordance with ISO 9000 standards
  • High quality steel with induction hardened teeth for wear resistance and longer working life
  • Supplied by Finer Power Transmissions
Brand

Finer PT
Product Type

Pilot Bore Sprocket
Standard

ASA
Series

25
Configuration

Simplex
Number of Teeth

27
Pitch

1/4" (6.35 mm)
Pitch Circle Diameter (PCD)

54.69 mm
Outer Diameter

56.51 mm
Inner Diameter (Bore)

10 mm
Bore Type

Pilot Bore
Overall Length (A)

18 mm
Material

Steel
Measurement System

Metric
Cross Reference Roller Chain: 25-1
Features & Benefits 1/4" (6.35mm) pitch - 54.69mm PCD
10mm pilot bore - machine out to suit your shaft and keyway
27 tooth pilot bore sprocket for ASA 25-1 simplex roller chain
Engineered in accordance with ISO 9000 standards
High quality steel with induction hardened teeth for wear resistance and longer working life
Supplied by Finer Power Transmissions

The Finer PT 25A1-27PB is a 27 tooth pilot bore sprocket for ASA 25-1 simplex roller chain – 1/4″ (6.35mm) pitch. It has a 54.69mm pitch circle diameter (PCD) and a 56.51mm outside diameter. It comes with a 10mm pilot bore.

A pilot bore sprocket is supplied with a small starter bore so it can be machined out to suit the shaft – keyway and set screws. Finer sprockets are made from high quality steel with induction hardened teeth – improving resistance to wear and extending working life. All Finer sprockets are engineered in accordance with ISO 9000 standards.

Dimensions:

  • Hub diameter (dm): 46 mm
  • Overall length (A): 18 mm
  • Tooth width (B1): 2.9 mm
  • Tooth radius (r3): 6 mm
  • Radius width (C): 0.6 mm
  • Chain: 1/4″ (6.35 mm) pitch – 3.18 mm inside width – 3.3 mm roller diameter

Please note: this pilot bore sprocket is supplied with a 10mm pilot bore – it is not finish bored.

Downloads:

Supplied by Finer Power Transmissions.

Finer PT Sprockets BS / ASA Interchange Chart
PDF — 26 KB
Download
Finer PT ASA 25 Pilot Bore Sprockets Spec Sheet
PDF — 868 KB
Download

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