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#25 Roller Chain

#25 roller chain is a 1/4" pitch ANSI Standard roller chain designed for light-duty or space confined applications. It's the smallest size roller chain on the ANSI spectrum of roller chains but offers ample performance, strength, and durability for its small form factor. We supply 25 roller chain in a range of stock lengths including 10ft boxes, 50ft reels, 100ft reels, and 500ft reels right off the shelf! At USA Roller Chain we have the broadest selection of 25 chain on the market, from your standard carbon steel materials to stainless steel and even plastic materials. Notably 25 roller chain does not contain rollers, rather just bushings that come into contact with the sprocket.

#25 Chain Dimensions

#25 Chain Dimensions#25 Chain Measurements
Size Pitch (P) Bushing Width (W) Bushing Diameter (D) Overall Width (A) Plate Height (H) Plate Thickness (T) Pin Diameter (E) Weight (Per Ft)
25-1 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.09 Lbs
25-2 0.25" 0.125" 0.130" 0.567" 0.232" 0.028" 0.091" 0.17 Lbs
25-3 0.25" 0.125" 0.130" 0.819" 0.232" 0.028" 0.091" 0.26 Lbs
25-4 0.25" 0.125" 0.130" 1.071" 0.232" 0.028" 0.091" 0.35 Lbs
25-5 0.25" 0.125" 0.130" 1.327" 0.232" 0.028" 0.091" 0.44 Lbs
Note: additional information on product pages.

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25 Chain Catalog

Browse #25 chain by category or specific type below.

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25 Steel Detachable Chain #25 Steel Detachable Chain 10ft Coil

Steel Detachable Chain

Currently Unavailable
General Duty Plus Quality #25 Roller Chain General Duty Plus #25 Roller Chain - 10ft Box

ANSI Roller Chain

Our Price: $29.99
Premium #25 Nickel Plated Chain Premier Series #25 Nickel Plated Chain - 10ft Box

Nickel Plated Roller Chain

Our Price: $134.99
General Duty Plus 25 Roller Chain 50ft Reel General Duty Plus #25 Roller Chain - 50ft Reel

General Duty Plus #25 Roller Chain

Our Price: $134.99
Premium 25-2 Roller Chain Premium #25-2 Roller Chain - 10ft Box | Premier Series Chain

Premium 25-2 Roller Chain

Our Price: $149.99
25-stainless-steel-roller-chain Premium 25 Stainless Steel Roller Chain 10ft Box

25 Stainless Steel Roller Chain

Our Price: $249.99
General Duty Plus 25 Roller Chain 100ft Reel General Duty Plus #25 Roller Chain - 100ft Reel

General Duty Plus #25 Roller Chain

Our Price: $269.99
Premier Series 25 Roller Chain 50ft Reel Premier Series #25 Roller Chain - 50ft Reel

Premier Series #25 Roller Chain

Our Price: $360.99
General Duty Plus 25 Roller Chain 250ft Reel General Duty Plus #25 Roller Chain - 250ft Reel

General Duty Plus #25 Roller Chain

Our Price: $674.99
   
 
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Standard ANSI 25 Roller Chains

Standard #25 roller chain includes the most commonly sold carbon-steel 25 chains. We offer these chains in all three of our quality levels and in standard stock length sizes (10ft, 50ft, 100ft, 250ft, and 500ft).


Standard ANSI 25 Roller Chain DimensionsStandard ANSI 25 Roller Chain Measurements
Size Series Tensile Strength Working Load Pitch (P) Bushing Width (W) Bushing Diameter (D) Overall Width (A) Plate Height (H) Plate Thickness (T) Pin Diameter (E) Weight (Lbs/Ft)
25-1 Premier 990 Lbs 165 Lbs 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.09
25-1 General Duty Plus 900 Lbs -- 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.09
25-1 Economy Plus 900 Lbs -- 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.09
25-2 Economy Plus 1,700 Lbs -- 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.18
25-2 Premier 1,900 Lbs 265 Lbs 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.18
25-3 Premier 2,970 Lbs 396 Lbs 0.25" 0.125" 0.130" 0.307" 0.232" 0.028" 0.091" 0.27

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Heavy-Duty 25H Roller Chain

Heavy-Duty 25H Roller Chain Dimensions
The ANSI Heavy 25 roller chain employs thicker side plates than the standard version, enhancing strength, shock load resistance, and longevity. These chains are compatible with the same sprockets as regular 25 roller chains.


25H Chain Dimensions:
25H Chain Dimensions25H Chain Diagram
Chain Size
Pitch (P)
Roller Width (W)
Bushing Diameter (D)
Overall Width (A)
Plate Height (H)
Plate Thickness (T)
Pin Diameter (E)
Weight (Per Ft)
0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091" 0.12 Lbs

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Corrosion Resistant 25 Roller Chain

We offer a broad range of options for corrosion-resistant (anti-corrosive) 25 roller chain. The chart below illustrates the corrosion-resistant choices. If you need assistance in making a decision, please contact us, and we will be happy to help.


Corrosion Resistant 25 Roller ChainCorrosion Resistant 25 Roller Chain Sizes
Chain Size Material Pitch (P) Roller Width (W) Bushing Diameter (D) Overall Width (A) Plate Height (H) Plate Thickness (T) Pin Diameter (E)
25SS-304 304 Stainless Steel 0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091"
25SS-316 316 Stainless Steel 0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091"
25NP Nickel Plates 0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091"
25-COAT Dacromet Coated 0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091"
25PS Poly Steel 0.250" 0.125" 0.130" 0.354" 0.232" 0.039" 0.091"
25AC Acetal 0.250" 0.125" 0.130" 0.349" 0.250" 0.040" 0.105"
25D Delrin 0.250" 0.125" 0.130" 0.349" 0.250" 0.040" 0.105"
25KY Kynar 0.250" 0.125" 0.130" 0.349" 0.250" 0.040" 0.105"
25NY Nylatron 0.250" 0.125" 0.130" 0.349" 0.250" 0.040" 0.105"
25PP Polypropylene 0.250" 0.125" 0.130" 0.349" 0.250" 0.040" 0.105"

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25 Roller Chain Sprockets

#25 A-Plate Sprockets

#25 A-Plate Sprockets Dimensions

Sprocket Size Tooth Count Type Outside Diameter Stock Bore Weight (Lbs)
25A18 18 A 1.568" 1/4 0.04
25A19 19 A 1.648" 1/4 0.04
25A20 20 A 1.729" 1/4 0.04
25A21 21 A 1.809" 3/8 0.04
25A22 22 A 1.889" 3/8 0.06
25A23 23 A 1.969" 3/8 0.06
25A24 24 A 2.049" 3/8 0.08
25A25 25 A 2.129" 3/8 0.08
25A26 26 A 2.209" 3/8 0.09
25A28 28 A 2.369" 3/8 0.10
25A30 30 A 2.529" 3/8 0.12
25A32 32 A 2.688" 3/8 0.14
25A35 35 A -- 3/8 0.16
25A36 36 A 3.008" 3/8 0.18
25A40 40 A 3.327" 1/2 0.20
25A42 42 A -- 1/2 0.24
25A45 45 A 3.725" 1/2 0.25
25A48 48 A 3.964" 1/2 0.32
25A54 54 A 4.442" 1/2 0.38
25A60
60 A 4.920" 1/2 0.54
25A72 72 A 5.876" 1/2 0.74

#25 B-Hub Sprockets

#25 B-Hub Sprockets Dimensions

Sprocket Size Tooth Count Type Outside Diameter Stock Bore Recommend Max. Bore Hub Diameter Length Thru Bore Weight (Lbs)
25B9 9 B 0.837" 1/4 1/4 7/16 1/2 0.03
25B10 10 B 0.919" 1/4 1/4 1/2 1/2 0.03
25B11 11 B 1.002" 1/4 5/16 9/16 1/2 0.04
25B12 12 B 1.083" 1/4 3/8 5/8 1/2 0.06
25B13 13 B 1.167" 1/4 7/16 23/32 1/2 0.07
25B14 14 B 1.246" 1/4 9/16 13/16 1/2 0.08
25B15 15 B 1.326" 1/4 9/16 57/64 1/2 0.10
25B16 16 B 1.407" 1/4 9/16 31/32 1/2 0.12
25B17 17 B 1.487" 1/4 5/8 1-1/32 1/2 0.14
25B18 18 B 1.568" 1/4 3/4 1-1/8 1/2 0.16
25B19 19 B 1.648" 1/4 13/16 1-7/32 1/2 0.19
25B20 20 B 1.729" 1/4 7/8 1-9/32 5/8 0.25
25B21 21 B 1.809" 1/4 7/8 1-3/8 5/8 0.28
25B22 22 B 1.889" 1/4 15/16 1-7/16 5/8 0.31
25B23 23 B 1.969" 1/4 1 1-1/2 5/8 0.32
25B24 24 B 2.049" 3/8 1 1-1/2 5/8 0.33
25B25 25 B 2.129" 3/8 1 1-1/2 5/8 0.34
25B26 26 B 2.209" 3/8 1 1-1/2 5/8 0.35
25B28 28 B 2.369" 3/8 1 1-1/2 5/8 0.36
25B30 30 B 2.529" 3/8 1 1-1/2 5/8 0.38
25B32 32 B 2.688" 3/8 1 1-1/2 5/8 0.40
25B36 36 B 3.008" 3/8 1 1-1/2 3/4 0.50
25B40 40 B 3.327" 1/2 1-3/8 2 3/4 0.53
25B45 45 B 3.725" 1/2 1-3/8 2 3/4 0.56
25B48 48 B 3.964" 1/2 1-3/8 2 3/4 0.56
25B54 54 B 4.442" 1/2 1-3/8 2 3/4 1.00
25B60 60 B 4.920" 1/2 1-3/8 2 3/4 1.10
25B70 70 B 5.717" 1/2 1-3/8 2 3/4 1.25
25B72 72 B 5.876" 1/2 1-3/8 2 3/4 1.30

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