Chains and sprockets 



Why Choose Us: Engineering Precision, Reliable Materials, Long-Term Performance

In industrial systems where every rotation counts, chain drives must operate without failures or energy losses. That’s why we offer drive and conveyor chains, as well as sprockets from the leading UK manufacturer JOHN KING, ensuring maximum efficiency and durability — even in the most demanding conditions.

Our Approach:

 The engineers at START-UP LLC select products based on all technical parameters and your equipment’s operating conditions 

Assembly or customization of chains is performed on certified equipment

Component adaptation to meet individual requirements

Technical support throughout every stage of collaboration

High-Strength Materials — Tailored to Your Industry

Chains are made from high-strength structural steels, ensuring stable tensile force and excellent wear resistance.

Specialized anti-corrosion coatings allow chain use in humid or chemically aggressive environments.

For food, chemical, or pharmaceutical industries, we offer solutions made of AISI 304 / 316 stainless steel, resistant to acids, alkalis, and steam.

Sprockets — Precision in Every Turn

Manufactured from alloy steels, with hardened teeth for reduced wear and extended service life.

Precision machining ensures perfect engagement with the chain, minimal energy loss, and smooth operation.

What You Get When You Choose Us:

 Maximum reliability — consistent performance with no downtime or emergency breakdowns

Optimal materials — tailored to your temperature, humidity, and chemical environment

High durability — minimal wear, even under intensive loads

Certified solutions — JOHN KING products meet international quality standards

Individual selection and support — our engineers consider all specifics of your production

Conveyor Chains

American standard engineering chains Carrier chain
 Bagasse conveyor chain Steel bush chain M Series metric conveyor chains
 FV Series metric conveyor chains
 Welded steel chains

American standard engineering chains

81X Chains Table
American Standard Engineered Steel Chains with Rollers
Chain
Number		 Style Pitch Rollers Bushings Pins Over-All
Pin & Cotter		 Between
Sidebars		 Sidebars Minimum
Breaking
Load		 Average
Weight
Outside Diameter G Heat
Treat		 Outside Diameter Diameter Heat
Treat		 Thickness Height Heat
Treat
P D2 D5 D6 F1 L S H
inches inches inches lbs lbs/ft
JKR81X N 2.609 0.88 - TH 0.63 0.43 CH 2.14 1.07 0.16 1.13 TH 16,000 2.50
JKR81XH N 2.609 0.88 - TH 0.63 0.43 TH 2.58 1.07 0.31 1.27 TH 28,000 4.10
JKR81XHH N 2.609 0.88 - TH 0.63 0.43 TH 2.76 1.07 0.31 1.27 TH 28,000 4.60
JKR1539 K 3.075 1.25 - TH 0.89 0.63 CH 3.50 1.50 0.31 1.50 TH 24,000 6.80
JKR0904 R 4.000 2.00 - CH 1.00 0.69 TH 3.13 1.22 0.31 1.75 TH 40,000 10.80
JKR1120 N 4.000 1.50 - CH 0.63 0.44 TH 2.28 1.00 0.19 1.13 TH 13,000 3.40
JKR188 N 4.000 1.75 - CH 0.63 0.44 CH 2.47 1.19 0.19 1.13 TH 13,000 4.20
JKR2188 N 4.000 1.75 - CH 0.94 0.63 CH 3.25 1.31 0.31 1.50 TH 23,000 7.00
JKR2102 N 4.000 1.50 - CH 1.00 0.62 CIH 4.53 2.22 0.37 1.50 TH 56,500 9.00
JKR2868 N 4.000 1.44 - CH 1.06 0.75 CIH 4.36 2.00 0.38 1.75 TH 56,500 12.10
JKR3952 N 4.000 1.43 - CH 1.00 0.75 CIH 4.125 2.00 0.37 1.75 TH 62,000 12.10
JKR3945 N 4.000 1.25 - CH 1.00 0.62 CIH 4.00 2.00 0.31 1.50 TH 45,000 9.50
JKR2848 R 4.040 1.50 - TH 1.00 0.69 CIH 4.26 2.00 0.38 2.00 TH 48,000 11.00
JKR3420 R 4.040 2.00 - CH 0.94 0.63 CH 3.25 1.31 0.31 1.50 TH 23,000 7.60
JKR2268 N 4.083 1.62 - CH 1.13 0.75 CIH 4.125 2.00 0.37 2.25 TH 100,000 13.00
JKR3950 N 4.038 1.37 - CH 1.00 0.62 CIH 3.086 2.00 0.31 1.50 TH 45,000 9.40
JKR2858 N 4.083 1.63 - CH 1.13 0.75 CIH 4.37 2.00 0.38 2.25 TH 57,000 13.00
JKR3285 N 4.500 2.00 - TH 1.31 0.94 CIH 4.94 2.06 0.50 2.50 TH 91,000 21.00
JKR4604 N 4.604 1.37 - CH 1.31 0.625 CIH 4.38 2.00 0.31 1.50 TH 45,000 12.64
JKR196 R 6.00 2.00 1.09 CH 0.63 0.44 CH 2.72 1.19 0.25 1.50 TH 18,000 5.00
JKR0196 R 6.00 2.00 1.19 CH 0.81 0.56 CH 2.89 1.25 0.25 1.50 TH 21,000 5.00
JKR2190 R 6.00 2.50 1.19 CH 0.81 0.56 CH 2.89 1.25 0.25 1.50 TH 21,000 7.00
JKR1114 R 6.00 2.00 1.25 CH 0.94 0.63 CH 3.25 1.31 0.31 1.50 TH 23,000 6.30
JKR2183 R 6.00 3.00 1.38 CH 0.89 0.63 CH 3.50 1.50 0.31 1.50 TH 24,000 10.70
JKR3130 W 6.00 2.50 0.94 CH 1.13 0.75 CH 3.53 1.25 0.38 2.00 TH 45,000 10.00
JKR2111 N 6.00 3.00 1.50 CH 1.25 0.88 TH 3.84 1.56 0.38 2.00 TH 67,000 9.60
JKR2124 R 6.00 2.75 1.44 CH 1.13 0.75 TH 3.84 1.56 0.38 2.00 TH 63,000 11.80
JKR1131 R 6.00 3.00 1.38 CH 1.13 0.75 TH 3.84 1.56 0.38 2.00 TH 45,000 12.50
JKR2184 W 6.00 3.00 1.06 CH 1.25 0.88 CIH 3.76 1.38 0.38 2.00 TH 58,000 12.30
JKR9184 W 6.00 3.00 1.20 CH 1.38 0.94 CIH 4.41 1.56 0.50 2.50 TH 100,000 15.20
JKR2198 W 6.00 2.75 1.25 CH 1.30 0.88 CIH 4.43 1.56 0.50 2.25 TH 64,000 18.20

Carrier chain

RF10 Style attachment
Carrier chain
Chain
Number		 Units C1 C2 C E E1 D T
JKB37291 mm 18.40 146.30 93.70 57.20 44.50 35.80 12.70
in 7.26 5.76 3.69 2.25 1.75 1.41 0.50

Bagasse conveyor chain

81X Chains Table
Cobra style Chain for Main Cane and Auxilliary Carrier Conveyors
Chain
Number		 Units Pitch Rollers Bushings Pins Over-All
Pin & Cotter		 Between
Sidebars		 Sidebars Square Hole Working Load Breaking Load Weight
Diameter Thickness Height
P D2 D5 D6 F L S H M14
JKR2397 mm 304.80 44.45 31.75 22.40 119.85 55.60 9.52 63.50 19.05 4,200 kg 40,900 kg 14.16 kg/m
in 12.00 1.75 1.25 0.88 4.71 2.18 0.38 2.50 0.75 9,420 ib 90,000 ib 9.79 ib/ft
JKR2358 mm 228.660 44.60 31.75 22.40 123.95 49.30 12.70 63.50 25.40 4,091 kg 45,455 kg 15.20 kg/m
in 9.00 1.75 1.25 0.88 4.88 1.94 0.50 2.50 1.00 14,000 ib 100,000 ib 10.20 ib/ft
JKR1706 mm 304.80 57.20 38.10 25.40 148.30 76.20 12.70 63.50 25.40 6,364 kg 45,455 kg 6.00 kg/m
in 9.00 1.75 1.25 0.88 4.88 1.94 0.50 2.50 1.00 14,000 ib 100,000 ib 10.20 ib/ft
JKR2648 mm 304.80 82.55 55.62 41.28 197.60 92.08 19.05 101.60 31.80 13,454 kg 159,090 kg 53.52 kg/m
in 12.00 3.25 2.19 1.62 7.78 3.62 0.75 4.00 1.25 30,000 ib 350,000 ib 35.90 ib/ft

Steel bush chain

81X Chains Table
American Standard Engineered Steel without Rollers
Chain
Number		 Style Pitch Bushings Pins Over-All
Pin & Cotter		 Between
Sidebars		 Sidebars Minimum
Breaking
Load		 Average
Weight
Outside Diameter Width Heat
Treat		 Diameter Heat
Treat		 Thickness Height Heat
Treat
P D5 C D6 F1 L S H
inches inches inches lbs lbs/ft
SS188 I 2.069 0.88 1.57 CH 0.50 CH 2.69 1.06 0.25 1.13 TH 23,000 3.80
SS131 I 3.075 1.25 2.06 CH 0.63 CH 3.52 1.31 0.38 1.50 TH 36,000 7.40
SS825 V 4.000 1.14 2.31 CH 0.75 CH 3.87 1.56 0.38 2.00 TH 55,000 8.70
SS102B I 4.000 1.00 2.89 CH 0.63 CH 4.37 2.13 0.38 1.50 TH 36,000 6.90
SS102.5 I 4.040 1.38 3.01 CH 0.75 CH 4.56 2.25 0.38 1.75 TH 48,000 9.40
JKB111 I 4.760 1.44 3.39 CH 0.75 CIH 4.97 2.63 0.38 2.00 TH 48,000 10.20
JKB110 I 6.000 1.25 2.89 CH 0.63 CIH 4.37 2.13 0.38 1.50 TH 36,000 6.30
JKB833 I 6.000 1.44 3.38 CH 0.75 CIH 4.97 2.63 0.38 2.00 TH 48,000 9.30
JKB844 V 6.000 1.19 3.50 CH 0.75 CIH 5.31 2.50 0.50 2.00 TH 52,000 10.40
JKB856 I 6.000 1.75 4.00 CH 1.00 CIH 5.99 3.00 0.50 2.50 TH 82,000 16.50
JKB956 I 6.000 1.75 4.00 CH 1.00 CIH 5.99 2.95 0.50 3.00 TH 97,000 16.60
JKB857 I 6.000 1.75 4.00 CH 1.00 CIH 5.99 3.00 0.50 3.25 TH 97,000 21.00
JKB958 I 6.000 2.00 4.13 CH 1.13 CIH 6.07 3.00 0.56 3.25 TH 97,000 21.00
JKB859 I 6.000 2.38 5.00 CH 1.25 CIH 7.62 3.75 0.63 4.00 TH 155,000 34.00
JKB6150 I 6.050 1.75 4.35 CH 1.00 CH 6.36 3.34 0.50 2.50 TH 124,000 17.20
JKB864 I 6.050 2.38 5.00 CH 1.25 CIH 7.62 3.75 0.63 4.00 TH 155,000 33.00
JKB984 I 7.000 2.50 5.00 CH 1.38 CIH 7.35 3.75 0.62 4.00 TH 155,000 33.00
JKB886 V 7.000 2.63 4.25 CH 1.63 CIH 6.79 2.75 0.75 4.00 TH 255,000 42.00
JKB4671 I 9.000 1.75 4.35 CH 1.00 CIH 6.21 3.38 0.50 3.00 TH 91,000 14.60

M Series metric conveyor chains

81X Chains Table
M Series Metric Conveyor Chains
Chain
Number		 Pitch Rollers Bushings Pins Over All Pin & Cotter Between
Sidebars		 Sidebars Breaking Load
Style Flange
Thickness		 Diameter Thickness Height
P D1 D2 D4 G D5 D6 F1 F2 L S H DIN
standard		 John King*
mm kN
M80 80 25 50 60 7 18 12 54.5 32 28 5 35 80 125
M80 100 25 50 60 7 18 12 54.5 32 28 5 35 80 125
M80 125 25 50 60 7 18 12 54.5 32 28 5 35 80 125
M80 160 25 50 60 7 18 12 54.5 32 28 5 35 80 125
M80 200 25 50 60 7 18 12 54.5 32 28 5 35 80 125
M112 80 30 60 75 7.5 21 15 66 35 32 6 40 112 175
M112 100 30 60 75 7.5 21 15 66 35 32 6 40 112 175
M112 125 30 60 75 7.5 21 15 66 35 32 6 40 112 175
M112 160 30 60 75 7.5 21 15 66 35 32 6 40 112 175
M112 200 30 60 75 7.5 21 15 66 35 32 6 40 112 175
M160 100 36 70 90 8.5 25 18 72 43 37 7 50 160 260
M160 125 36 70 90 8.5 25 18 72 43 37 7 50 160 260
M160 160 36 70 90 8.5 25 18 72 43 37 7 50 160 260
M160 200 36 70 90 8.5 25 18 72 43 37 7 50 160 260
M160 250 36 70 90 8.5 25 18 72 43 37 7 50 160 260
M224 125 42 85 100 10 30 21 88 47 43 8 60 224 340
M224 160 42 85 100 10 30 21 88 47 43 8 60 224 340
M224 200 42 85 100 10 30 21 88 47 43 8 60 224 340
M224 250 42 85 100 10 30 21 88 47 43 8 60 224 340
M224 315 42 85 100 10 30 21 88 47 43 8 60 224 340
M315 160 50 100 120 12 36 25 102 55 48 10 70 315 520
M315 200 50 100 120 12 36 25 102 55 48 10 70 315 520
M315 250 50 100 120 12 36 25 102 55 48 10 70 315 520
M315 315 50 100 120 12 36 25 102 55 48 10 70 315 520
M315 400 50 100 120 12 36 25 102 55 48 10 70 315 520
M450 200 60 120 140 14 42 30 118 66 56 12 80 450 700
M450 250 60 120 140 14 42 30 118 66 56 12 80 450 700
M450 315 60 120 140 14 42 30 118 66 56 12 80 450 700
M450 400 60 120 140 14 42 30 118 66 56 12 80 450 700
M630 250 70 140 170 16 50 36 138 74 66 14 100 630 1050
M630 315 70 140 170 16 50 36 138 74 66 14 100 630 1050
M630 400 70 140 170 16 50 36 138 74 66 14 100 630 1050
M630 500 70 140 170 16 50 36 138 74 66 14 100 630 1050
M900 250 85 170 210 18 60 44 158 89 78 16 120 900 1250
M900 315 85 170 210 18 60 44 158 89 78 16 120 900 1250
M900 400 85 170 210 18 60 44 158 89 78 16 120 900 1250
M900 500 85 170 210 18 60 44 158 89 78 16 120 900 1250

FV Series metric conveyor chains

81X Chains Table
FV Series Metric Conveyor Chains
Chain
Number		 Pitch Rollers Bushings Pins Over All Pin & Cotter Between
Sidebars		 Sidebars Breaking Load
Style Flange
Thickness		 Diameter Thickness Height
P D1 D2 D3 D4 G D5 D6 F1 F2 L S H DIN
standard		 John King*
mm kN
FV63 63 26 40 50 63 5 18 12 45 26 22 4 30 64 75
FV63 80 26 40 50 63 5 18 12 45 26 22 4 30 64 75
FV63 100 26 40 50 63 5 18 12 45 26 22 4 30 64 75
FV63 125 26 40 50 63 5 18 12 45 26 22 4 30 64 75
FV63 160 26 40 50 63 5 18 12 45 26 22 4 30 64 75
FV90 63 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 80 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 100 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 125 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 160 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 200 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV90 250 30 48 63 78 6.5 20 14 53 30 25 5 35 100 115
FV112 100 32 55 72 90 7.5 22 16 62 35 30 6 40 120 170
FV112 125 32 55 72 90 7.5 22 16 62 35 30 6 40 120 170
FV112 160 32 55 72 90 7.5 22 16 62 35 30 6 40 120 170
FV112 200 32 55 72 90 7.5 22 16 62 35 30 6 40 120 170
FV112 250 32 55 72 90 7.5 22 16 62 35 30 6 40 120 170
FV140 100 36 60 80 100 9 26 18 67 41 35 6 45 145 180
FV140 125 36 60 80 100 9 26 18 67 41 35 6 45 145 180
FV140 160 36 60 80 100 9 26 18 67 41 35 6 45 145 180
FV140 200 36 60 80 100 9 26 18 67 41 35 6 45 145 180
FV140 250 36 60 80 100 9 26 18 67 41 35 6 45 145 180

Welded steel chains

81X Chains Table
Offset Sidebar Welded Steel Chains
Chain
Number		 Pitch Bushings Rivets Over-All
Pin & Cotter		 Between
Sidebars		 Length of Bearing Sidebars Breaking
Load		 Average
Weight
Outside Diameter Diameter Thickness Height
P D5 D6 F1 L S H
inches lbs lbs/ft
WH78/R 2.609 0.84 0.50 3.00 1.00 2.00 0.25 1.25 33,000 4.30
WH82/R 3.075 1.00 0.56 3.38 1.13 2.25 0.25 1.25 36,000 4.70
WH124/R 4.000 1.25 0.75 4.25 1.50 2.75 0.38 1.50 57,000 7.80
WH111/R 4.760 1.25 0.75 4.81 1.75 3.38 0.38 1.75 60,000 8.60
WH110/R 6.000 1.25 0.75 4.00 1.88 3.00 0.38 1.50 50,500 7.00
WH106/R 6.000 1.25 0.75 4.25 1.50 2.75 0.38 1.50 60,000 6.20
WH132/R 6.050 1.75 1.00 6.38 2.75 4.41 0.50 2.00 122,000 14.10
WH150/R 6.050 1.75 1.00 6.50 2.75 4.41 0.50 2.50 122,000 16.30
WH155/R 6.050 1.75 1.13 6.41 2.75 4.41 0.56 2.50 175,000 19.00
WH157/R 6.050 1.75 1.13 6.75 2.75 4.63 0.63 2.50 175,000 20.00
WH159/R 6.125 2.00 1.25 6.75 2.75 4.63 0.63 3.00 210,000 26.00
WH200/R 6.125 2.00 1.25 6.75 2.75 4.63 0.63 2.50 190,000 22.10

Other products

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