PTI Bearing Catalog - Norfolkbearings.com

Metric Sprockets
ISO 20B Plate Type A
DIN 8187/ISO R 606
Chain Size: 20B-1 (1-1/4” x 3/4”)
Pitch: 31.75 mm
Roller Width: 19.56 mm
Roller Dia.: 19.05 mm
Spkt. Width: 18.5 mm (bf 1 )
Material: Steel C45
bf 1
d 1
d o
ISO 24B Plate Type A
DIN 8187/ISO R 606
Chain Size: 24B-1 (1-1/2” x 1”)
Pitch: 38.1 mm
Roller Width: 25.4 mm
Roller Dia.: 25.4 mm
Spkt. Width: 24.1 mm (bf 1 )
Material: Steel C45
Note:
Double and triple sprockets including stainless
steel available on request. Larger
sizes also available.
d k
Part No.
Teeth
d o
mm
d k
mm
d 1
mm
20B-8A 8 82.96 98.1 16 1.0
20B-9A 9 92.8 108.0 16 1.1
20B-10A 10 102.7 117.9 16 1.2
20B-11A 11 112.7 127.8 20 1.3
20B-12A 12 122.7 138 20 1.50
20B-13A 13 132.7 148 20 1.72
20B-14A 14 142.7 158 20 2.00
20B-15A 15 152.7 168 20 2.32
20B-16A 16 162.7 178 25 2.65
20B-17A 17 172.8 188 25 2.97
20B-18A 18 182.8 198 25 3.50
20B-19A 19 192.9 208 25 3.73
20B-20A 20 203.0 218 25 4.10
20B-21A 21 213.0 228 25 4.60
20B-22A 22 223.1 238 25 5.00
20B-23A 23 233.2 248 25 5.60
20B-24A 24 243.2 258 25 6.10
20B-25A 25 253.3 269 25 6.65
20B-27A 27 273.5 289 25 7.80
20B-30A 30 303.8 319 25 9.65
20B-32A 32 323.9 339 25 11.00
20B-35A 35 354.2 369 25 13.18
20B-38A 38 384.5 400 25 15.46
20B-40A 40 404.7 420 25 17.20
20B-45A 45 455.2 470 30 21.70
20B-48A 48 485.5 501 30 25.00
20B-57A 57 576.4 592 30 34.50
20B-65A 65 657.2 672 30 50.40
20B-76A 76 768.2 784 30 62.90
Part No.
Teeth
d o
mm
d k
mm
d 1
mm
24B-8A 8 99.6 115.0 20 2.2
24B-9A 9 111.4 126.4 20 2.4
24B-10A 10 123.3 138.0 20 2.5
24B-11A 11 135.2 150.0 25 2.7
24B-12A 12 147.2 162 20 2.80
24B-13A 13 159.2 174 20 3.10
24B-14A 14 171.2 186 20 3.60
24B-15A 15 183.3 199 20 4.10
24B-16A 16 195.3 211 25 4.70
24B-17A 17 207.3 222 25 5.30
24B-18A 18 219.4 234 25 6.00
24B-19A 19 231.5 246.5 25 6.70
24B-20A 20 243.5 259 25 7.50
24B-21A 21 255.6 271 25 8.30
24B-22A 22 267.7 283 25 9.20
24B-23A 23 279.8 295 25 10.00
24B-24A 24 291.9 307 25 11.10
24B-25A 25 304.0 319 25 11.80
24B-27A 27 328.2 343 30 14.20
24B-30A 30 364.5 380 30 17.00
24B-32A 32 388.6 404 30 18.00
24B-35A 35 425.0 440 30 20.00
24B-38A 38 461.4 477 30 27.60
24B-40A 40 485.6 501 30 29.00
24B-45A 45 546.2 562 30 39.10
24B-48A 48 582.5 597 30 41.20
24B-56A 56 679.5 694 30 60.00
24B-57A 57 691.6 706 30 62.00
24B-76A 76 921.9 937 40 95.00
363 P.T. International Corp.
Wt.
kg
Wt.
kg