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Sprocket, Plain, 25 Chain Size, 1/4 Bore Dia., 21 # of Teeth

  • Mfr # 25B21

  • Zoro # G2920407

product price:  $14.79
/ea

Key Features

Material
Steel
Number of Teeth
21
Bore Type
Plain
Bore Dia. (In.)
1/4
Includes
Set Screws
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Specifications

Product Information

MFR #
25B21
Zoro #
G2920407
UPC #
097039313409
Country of Origin
China

Dimensions

Bore Dia. (In.)
1/4
Outside Dia.
2 in
Pitch Dia.
1.678 in
Bore Dia. - Sprockets
1/4 in
Industry Chain Size
25
Hub Dia.
1.375 in
Length through Bore
5/8 in
Length through Bore (In.)
5/8
Pitch Dia. (In.)
1.678
Outside Dia. (In.)
1.809
Hub Dia. (In.)
1-3/8
Bore Diameter
1/4 in
Outside Diameter
1.809 in
Maximum Bore Diameter
7/8 in
Pitch Diameter
1.678 in
Hub Diameter
1 3/8 in
Tooth Width
0.11 in

Details

Item
Sprocket
Material
Steel
Number of Teeth
21
Bore Type
Plain
Includes
Set Screws
Chain Number
25
ANSI Sprocket Number
25
Sprocket Bore Type
Plain Bore
Material - Sprockets
Carbon Steel
Number of Chain Rows
Single
Item - Roller Chain Sprockets
Roller Chain Sprocket
Max. Bore - Sprockets
7/8 in
Type
Plain Bore
Number of Teeth - Sprockets
21
Max. Bore (In.)
7/8
Sprocket Hub Type
Type B
Industry Chain Pitch
1/4 in
Set Screw Location
90 Degrees from Keyway
Standards
ANSI
For Pitch Type
Single Pitch
Resistance Properties
Corrosion Resistant
Hub Type
One Side
For Number of Strands
Single
For Chain Pitch
1/4 in
Material Grade
1045
Teeth Heat Treatment
Not Hardened
Finish
Black Oxide
Hub Projection
0.515 in

Description

Sprocket, Bore Diameter 1/4 in, For Chain Pitch 1/4 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 7/8 in, Number of Teeth 21, Outside Diameter 1.809 in, Pitch Diameter 1.678 in, Bore Type Plain, Chain Number 25, Finish Black Oxide, For Pitch Type Single Pitch, Hub Diameter 1 3/8 in, Hub Projection 0.515 in, Includes Set Screws, Keyway Yes, Length through Bore 5/8 in, Material Grade 1045, Resistance Properties Corrosion Resistant

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