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API Oilfield Roller Chain

Oilfield series chains manufactured in accordance with the American Petroleum Institute standards
The oilfield roller chain that we supply is engineered and manufactured to provide the absolute maximum performance and reliability for oilfield rig applications. Specially manufactured features on this chain create a product with superior fatigue resistance and ability to withstand shock load ratings past a "standard" roller chain.

Oilfield Roller Chain Features

  • Solid Bushings and Solid Rollers (SBR)
  • Manufactured in Accordance with American Petroleum Institute Standards
  • Dimensionally Conforms to ANSI B29.1 Standards to Directly Interchange With Other Brands
  • Ballized Pitch Holes
  • Wise-Waist Link Plates
  • Press Fitted Center Link Plates for Multi-Strand Chains
  • High Energy Mechanical Treatment Preformed For Pins
  • Unique "Bushed" Multi-Strand Connecting Links
  • Factory Applied Hot Dipped Wax Type Pre-Lubricant
  • Special 4-Pitch Riveted Type Offset Links Available
  • Stainless Steel Steel Blast For Link Plates
Bushed Type Multi-Strand Connecting Links

The multi strand API connecting pins possess unique bushed center plates. The bushings provide a press fit to the center plates that improves fatigue strength. These connecting links possess the same dynamic capacity as the base chain yet they are easy to install.
Ball Drifted Link Plates

After the roller chain parts are heat-treated, the link plates are ball drifted to eliminate small imperfections and impart beneficial compressive residual stress while improving fatigue strength providing greater reliable service life.
API Type Cotters

The special "J-hook" or "shepards" style cotter is utilized and recommended by the American Petroleum Institute for easier installation and editing in the field. Although this cotter is not absolutely required it is on all API certified chains. We also have other cottered roller chain styles available.

Single Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
80 1.00" 0.625" 0.625" 0.312" 0.125" 0.921" 0.646" 0.732" 1.69
100 1.25" 0.750" 0.750" 0.375" 0.156" 1.154" 0.776" 0.917" 2.62
120 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 0.976" 1.126" 3.87
140 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 1.063" 1.232" 4.98
160 2.00" 1.250" 1.125" 0.562" 0.250" 1.839" 1.268" 1.437" 6.58
180 2.25" 1.406" 1.406" 0.687" 0.281" 2.067" 1.429" 1.657" 9.00
200 2.50" 1.500" 1.562" 0.781" 0.312" 2.354" 1.547" 1.878" 11.38
240 3.00" 1.875" 1.875" 0.937" 0.375" 2.768" 1.898" 2.201" 15.89
80H 1.00" 0.625" 0.625" 0.312" 0.156" 0.921" 0.705" 0.819" 1.88
100H 1.25" 0.750" 0.750" 0.375" 0.187" 1.154" 0.835" 0.972" 2.78
120H 1.50" 1.000" 0.875" 0.437" 0.219" 1.382" 1.039" 1.213" 3.91
140H 1.75" 1.000" 1.000" 0.500" 0.250" 1.610" 1.126" 1.307" 5.64
160H 2.00" 1.250" 1.125" 0.562" 0.281" 1.839" 1.339" 1.535" 7.28
180H 2.25" 1.406" 1.406" 0.687" 0.312" 2.067" 1.488" 1.720" 10.18
200H 2.50" 1.500" 1.562" 0.781" 0.375" 2.354" 1.669" 2.008" 11.97

Double Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
100-2 1.25" 0.750" 0.750" 0.375" 0.156" 1.154" 1.475" 1.627" 5.19
120-2 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 1.870" 1.020" 7.77
140-2 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 2.028" 2.197" 9.83
160-2 2.00" 1.250" 1.125" 0.562" 0.250" 1.839" 2.417" 2.591" 13.07
200-2 2.50" 1.500" 1.562" 0.781" 0.312" 2.354" 2.953" 3.288" 22.67

Triple Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
100-3 1.25" 0.750" 0.750" 0.375" 0.156" 1.154" 2.180" 2.332" 7.77
120-3 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 2.766" 2.920" 11.56
140-3 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 2.983" 3.163" 14.72
160-3 2.00" 1.250" 1.125" 0.562" 0.250" 1.839" 3.571" 3.740" 19.60
240-3 3.00" 1.875" 1.875" 0.937" 0.375" 2.768" 5.354" 5.654" 47.45

Four Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
100-4 1.25" 0.750" 0.750" 0.375" 0.156" 1.154" 2.902" 3.036" 10.33
120-4 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 3.664" 3.817" 15.40
140-4 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 3.961" 4.130" 19.60
160-4 2.00" 1.250" 1.125" 0.562" 0.250" 1.839" 4.732" 4.902" 26.05

Five Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
120-5 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 4.558" 4.710" 19.25

Six Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
100-6 1.25" 0.750" 0.750" 0.375" 0.156" 1.154" 4.308" 4.448" 15.49
120-6 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 5.451" 5.606" 23.09
140-6 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 5.886" 6.055" 29.38

Eight Strand Oilfield Roller Chains


Chain Size
Pitch (P)
(W)
(R)
(D)
(T)
(H)
(Lr)
(Lc)
Weight (LBS/ FT)
120-8 1.50" 1.000" 0.875" 0.437" 0.187" 1.382" 7.234" 7.400" 30.78
140-8 1.75" 1.000" 1.000" 0.500" 0.219" 1.610" 7.806" 7.985" 39.16

Oilfield Roller Chain Applications


Component
500HP
750HP
1000HP
1500HP
2000HP
3000HP
4000HP
Rotary Table (A) 140-1
120-1
140-2
160-1
140-2
160-1
160-2
140-2
160-2 160-2 160-2
Rotary Countershaft (B) 140-1
120-1
140-2
160-1
140-2
160-1
160-2
140-2
160-2 160-2
200H-1
160-2
High Drum (C) 120-3
140-2
160-2
140-2
140-2
160-2
160-3 160-4 200H-3 --
Low Drum (D) 120-3
140-2
160-2
140-3
140-3
160-2
160-3 160-4 200H-3 240-3
Cat Shaft (E) 140-1
120-1
160-1
140-2
160-1
140-2
160-1
140-2
160-2 160-2
200H-1
160-2
Transmission (F) 120-2
100-3
140-2 160-2
140-3
160-3 160-4
160-3
160-4
200H-3
140-8
Drawworks Input (G) 100-3
100-4
100-4 120-3
120-4
120-4 120-6 120-8 140-8
Compound (H) 100-3 100-4 120-3
120-4
120-4 120-6 120-8 140-8
Mid Pump Drive (I) 100-4
100-3
100-6
100-4
120-4
120-3
120-6
120-4
120-8
120-6
120-8 140-8
Mid Pump Drive (J) 100-4
100-3
100-6
100-4
120-4
120-3
120-6
120-4
120-8
120-6
120-8 140-8

Oilfield Chain Sprockets

Besides the chain we supply an array of custom roller chain sprockets made for the oilfield industry. Below are some of the standard oilfield sprockets we supply. Contact us for pricing and availably on the chain and sprockets!

160-6B22H

D160C52H

DD140A28H33H

DS180C15H

120-6A51H

160-6B42H

E140A60

120-6B30H

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