V Belts

PTP offers a wide range of classical or wedge belts constructed from tough, long-lasting synthetic rubber reinforced with low elongation polyester cords that have proven to be long lasting and economic in service.

PTP belts are manufactured to ISO 9001 and ISO 14001 certified standards and have a standard operating temperature of -20C to +70C


The standard range of belts includes:

Classical V-Belts:

M(Z) ; A ; B & C Section

The most popular sections with long service in a wide variety of industrial applications.


Wedge V-Belts:

SPZ ; SPA ; SPB & SPC European Metric Sections

Sometimes referred to as "narrow belts", these meet BS3790, DIN7753 and RMA (IP22) specifications for more compact drivelines.


Cogged Raw-edge belts

XPZ ; XPA ; XPB and XPC Sections

These enable the use of small diameter pulleys and thus cost saving driveline designs. The cords are treated to increase bending fatigue.


Banded belts are also available

# #
Classical_belt_x-section.jpg Wedge_belt_x-section.jpg

The following sizes of PTP classical V-belts, Wedge belts and Cogged raw-edge belts are stocked


M (Z)ABCDSPZSPASPBSPC
M 22A 16B 24C 40D 98SPZ 487SPA 750SPB 1250SPC 2000
M 24A 18B 248C 42D 144SPZ 512SPA 750 CRESPB 1250 CRESPC 2120
M 25A 20B 25C 43D 148SPZ 530SPA 757SPB 1260SPC 2240
M 29A 20 CREB 26C 44D 150SPZ 562-SPA 757 CRESPB 1320SPC 2240 CRE
A 21B 26 CREC 45D 154SPZ 575SPA 782SPB 1320 CRESPC 2360
A 22B 27C 46D 158SPZ 580SPA 782 CRESPB 1340SPC 2500
A 22 CREB 28C 48D 173SPZ 587SPA 800SPB 1340 CRESPC 2550
A 23B 28 CREC 49D 180SPZ 587 CRESPA 800 CRESPB 1360SPC 2620
A 23 CREB 29C 50D 195SPZ 600SPA 807SPB 1400SPC 2650
A 24B 29.1/2C 51D 210SPZ 600 CRESPA 807 CRESPB 1400 CRESPC 2800
A 24 CREB 30C 52D 220SPZ 612SPA 825SPB 1410SPC 2800 CRE
A 25-B 30 CREC 53D 228SPZ 612 CRESPA 825 CRESPB 1440SPC 3000
A 25 CREB 31C 54D 238SPZ 630SPA 832 CRESPB 1450SPC 3150
A 25.1/2B 31 CREC 55D 240SPZ 630 CRESPA 850SPB 1450 CRESPC 3350
A 26B 32C 56D 250SPZ 637 CRESPA 850 CRESPB 1500SPC 3550
A 26 CREB 32 CREC 57D 300SPZ 662SPA 857SPB 1500 CRESPC 3750
A 27B 33C 58D 358SPZ 662 CRESPA 875SPB 1525 CRESPC 4000
A 27 CREB 33 CREC 59D 418SPZ 670SPA 882SPB 1550SPC 4250
A 28B 34C 60SPZ 670 CRESPA 882 CRESPB 1550 CRESPC 4500
A 28 CREB 34 CREC 61SPZ 687SPA 900SPB 1590SPC 4750
A 29B 35C 62SPZ 687 CRESPA 900 CRESPB 1590 CRESPC 5000
A 29 CREB 35 CREC 63SPZ 710SPA 907SPB 1600SPC 5300
A 30B 36C 64SPZ 710 CRESPA 932SPB 1600 CRESPC 5500
A 30 CREB 36 CREC 65SPZ 722SPA 932 CRESPB 1650SPC 5600
A 31 CREB 37C 67SPZ 722 CRESPA 950SPB 1700SPC 6000
A 31.1/2B 38C 68SPZ 730 CRESPA 950 CRESPB 1700 CRESPC 6700
A 32B 38 CREC 70SPZ 737SPA 957SPB 1750SPC 7000
A 32 CREB 39C 71SPZ 737 CRESPA 957 CRESPB 1750 CRESPC 7100
A 33B 39 CREC 73SPZ 750SPA 975SPB 1800SPC 7500
A 33 CREB 40C 75SPZ 750 CRESPA 982SPB 1800 CRESPC 8000
A 34B 40 CREC 77SPZ 760SPA 982 CRESPB 1850 CRESPC 8500
A 34 CREB 41C 78SPZ 760 CRESPA 1000SPB 1860SPC 9000
A 35B 41 CREC 79SPZ 762SPA 1000 CRESPB 1900SPC 10000
A 35 CREB 42C 81SPZ 762 CRESPA 1007SPB 1900 CRE
A 36B 42 CREC 82SPZ 772SPA 1010SPB 1950
A 36 CREB 42.1/2C 83SPZ 772 CRESPA 1030SPB 1950 CRE
A 36.1/2B 43C 85SPZ 775SPA 1030 CRESPB 2000
A 37B 44C 86SPZ 775 CRESPA 1032SPB 2000 CRE
A 37 CREB 44 CREC 87SPZ 787SPA 1032 CRESPB 2020
A 37.1/2B 45C 88SPZ 787 CRESPA 1057SPB 2020 CRE
A 38B 45 CREC 90SPZ 800SPA 1060SPB 2060
A 38 CREB 46 CREC 91SPZ 800 CRESPA 1060 CRESPB 2120
A 38.1/2B 47C 92SPZ 812SPA 1082SPB 2120 CRE
A 39B 47 CREC 93SPZ 812 CRESPA 1082 CRESPB 2150
A 39 CREB 48C 94SPZ 825 CRESPA 1090SPB 2180
A 39.1/2B 48 CREC 95SPZ 837SPA 1090 CRESPB 2200
A 40B 49C 96SPZ 837 CRESPA 1107SPB 2240
A 40 CREB 49 CREC 97SPZ 850SPA 1107 CRESPB 2240 CRE
A 40.1/2B 50C 98SPZ 850 CRESPA 1120SPB 2280
A 41B 50 CREC 100SPZ 862SPA 1120 CRESPB 2280 CRE
A 41 CREB 51C 101SPZ 862 CRESPA 1132SPB 2300
A 42B 51 CREC 102SPZ 875 CRESPA 1132 CRESPB 2350
A 42 CREB 52C 104SPZ 887SPA 1150SPB 2360
A 43B 52 CREC 105SPZ 887 CRESPA 1150 CRESPB 2360 CRE
A 43 CREB 53C 106SPZ 900SPA 1157SPB 2400
A 43.1/2B 53 CREC 107-SPZ 900 CRESPA 1157 CRESPB 2410 CRE
A 44 CREB 54C 108SPZ 912SPA 1160SPB 2430
A 45B 54 CREC 110SPZ 912 CRESPA 1180SPB 2500
A 45 CREB 55C 111SPZ 925SPA 1180 CRESPB 2500 CRE
A 46B 55 CREC 112SPZ 925 CRESPA 1200SPB 2530
A 46 CREB 56C 115SPZ 937SPA 1207SPB 2530 CRE
A 47B 56 CREC 116SPZ 937 CRESPA 1207 CRESPB 2580
A 47 CREB 57C 117SPZ 940SPA 1215SPB 2600
A 48B 57 CREC 118SPZ 950SPA 1220SPB 2650
A 49B 58C 119SPZ 962SPA 1220 CRESPB 2650 CRE
A 49 CREB 58 CREC 120SPZ 962 CRESPA 1225 CRESPB 2680
A 50B 59C 122SPZ 975SPA 1232SPB 2680 CRE
A 50 CREB 59 CREC 124SPZ 975 CRESPA 1232 CRESPB 2720
A 51B 60C 125SPZ 987SPA 1250SPB 2750
A 51 CREB 60 CREC 128SPZ 987 CRESPA 1250 CRESPB 2800
A 52B 61C 130SPZ 1000SPA 1257SPB 2800 CRE
A 52 CREB 62C 132SPZ 1000 CRESPA 1272SPB 2840
A 53B 63C 134SPZ 1010SPA 1280SPB 2850
A 54B 63 CREC 136SPZ 1010 CRESPA 1280 CRESPB 2900
A 54 CREB 64C 138SPZ 1012SPA 1282SPB 2990
A 55B 64 CREC 140SPZ 1012 CRESPA 1282 CRESPB 3000
A 55 CREB 65C 142SPZ 1030SPA 1300SPB 3000 CRE
A 56B 65 CREC 144SPZ 1030 CRESPA 1302 CRESPB 3150
A 56 CREB 66C 148SPZ 1037SPA 1307SPB 3150 CRE
A 57B 67C 149SPZ 1037 CRESPA 1307 CRESPB 3170
A 57 CREB 67 CREC 150SPZ 1047SPA 1320SPB 3270
A 58B 68C 152SPZ 1047 CRESPA 1320 CRESPB 3340
A 58 CREB 68 CREC 154SPZ 1060SPA 1332SPB 3350
A 59B 69C 158SPZ 1060 CRESPA 1332 CRESPB 3350 CRE
A 59 CREB 69 CREC 160SPZ 1062SPA 1357SPB 3450
A 60B 70C 162SPZ 1077SPA 1360SPB 3500
A 61B 70 CREC 168SPZ 1077 CRESPA 1360 CRESPB 3550
A 61 CREB 71C 173SPZ 1080SPA 1367SPB 3650
A 62B 71 CREC 180SPZ 1080 CRESPA 1382SPB 3750
A 63B 72C 185SPZ 1087SPA 1382 CRESPB 3800
A 63 CREB 73 CREC 186SPZ 1087 CRESPA 1400SPB 3870
A 64B 74C 187SPZ 1100SPA 1400 CRESPB 4060
A 64 CREB 74 CREC 190SPZ 1112SPA 1407SPB 4120
A 65B 75C 195SPZ 1112 CRESPA 1425SPB 4250
A 65 CREB 75 CREC 204SPZ 1120SPA 1432SPB 4310
A 66B 76C 208-SPZ 1120 CRESPA 1432 CRESPB 4500
A 67B 77C 210SPZ 1137SPA 1450SPB 4560
A 68B 77 CREC 216SPZ 1140SPA 1450 CRESPB 4750
A 68 CREB 78C 220SPZ 1140 CRESPA 1457SPB 4820
A 69B 78 CREC 224SPZ 1150SPA 1457 CRESPB 5000
A 70B 79C 225SPZ 1150 CRESPA 1482SPB 5070
A 71B 80C 228SPZ 1162SPA 1482 CRESPB 5380
A 72B 81C 240SPZ 1162 CRESPA 1500 CRESPB 5600
A 72 CREB 83C 248SPZ 1180SPA 1532SPB 5680
A 73B 84C 250SPZ 1180 CRESPA 1532 CRESPB 5900
A 74B 85C 255SPZ 1187SPA 1550SPB 5990
A 76 CREB 86C 268SPZ 1187 CRESPA 1550 CRESPB 6000
A 77B 86 CREC 270SPZ 1200SPA 1557SPB 6300
A 77 CREB 87C 300-SPZ 1202SPA 1557 CRESPB 6340
A 78B 88SPZ 1202 CRESPA 1582SPB 6700
A 79B 89SPZ 1212SPA 1600SPB 7100
A 80B 89 CRESPZ 1212 CRESPA 1600 CRESPB 7500
A 81 CREB 90SPZ 1222SPA 1607SPB 7990
A 82B 90 CRESPZ 1237SPA 1630 CRESPB 8000
A 83B 91SPZ 1237 CRESPA 1632
A 84B 92SPZ 1250SPA 1632 CRE
A 85B 93SPZ 1250 CRESPA 1650
A 86B 93 CRESPZ 1262SPA 1650 CRE
A 87B 94SPZ 1262 CRESPA 1657
A 88B 95SPZ 1270SPA 1682
A 89B 96-SPZ 1270 CRESPA 1700
A 90B 97SPZ 1287SPA 1700 CRE
A 91B 98SPZ 1287 CRESPA 1732
A 91 CREB 99SPZ 1300SPA 1732 CRE
A 92B 100SPZ 1300 CRESPA 1750
A 93B 101SPZ 1312SPA 1750 CRE
A 94B 102SPZ 1312 CRESPA 1757
A 95B 103SPZ 1320SPA 1782
A 95 CREB 104SPZ 1320 CRESPA 1800
A 97 CREB 105-SPZ 1337SPA 1800 CRE
A 98 CREB 106SPZ 1337 CRESPA 1807
A 100B 108SPZ 1340SPA 1832
A 102B 109SPZ 1340 CRESPA 1850 CRE
A 103B 110SPZ 1347SPA 1857
A 104B 112SPZ 1360SPA 1882
A 105B 114SPZ 1362SPA 1882 CRE
A 106B 115SPZ 1362 CRESPA 1900
A 107B 116SPZ 1375SPA 1900 CRE
A 108B 118SPZ 1387SPA 1932 CRE
A 110B 120SPZ 1387 CRESPA 1950
A 111B 124SPZ 1400SPA 1950 CRE
A 112B 125SPZ 1400 CRESPA 1982
A 113B 128SPZ 1412SPA 1982 CRE
A 114B 130SPZ 1412 CRESPA 2000
A 115B 131SPZ 1420SPA 2032
A 116B 132SPZ 1437SPA 2032 CRE
A 118B 134SPZ 1437 CRESPA 2057
A 120B 136SPZ 1450SPA 2057 CRE
A 124B 138SPZ 1450 CRESPA 2060 CRE
A 128B 140SPZ 1462SPA 2082
A 134B 144SPZ 1462 CRESPA 2120
A 136B 146SPZ 1470SPA 2120 CRE
A 138B 148SPZ 1470 CRESPA 2157
A 140B 150SPZ 1487SPA 2180
A 144B 151SPZ 1487 CRESPA 2182
A 150B 158SPZ 1500SPA 2207
A 158B 168SPZ 1500 CRESPA 2240
A 160B 173SPZ 1512 CRESPA 2240 CRE
A 167B 180SPZ 1520SPA 2282
A 173B 185SPZ 1520 CRESPA 2282 CRE
A 196B 195SPZ 1537SPA 2300
B 197SPZ 1537 CRESPA 2360
B 210SPZ 1550SPA 2360 CRE
B 216SPZ 1550 CRESPA 2382
B 220SPZ 1560SPA 2482
B 238SPZ 1560 CRESPA 2500
SPZ 1562SPA 2532
SPZ 1562 CRESPA 2580
SPZ 1587SPA 2650
SPZ 1600SPA 2720
SPZ 1600 CRESPA 2800
SPZ 1612SPA 2832
SPZ 1612 CRESPA 2847
SPZ 1630 CRESPA 2882
SPZ 1637SPA 2900
SPZ 1650SPA 2932
SPZ 1650 CRESPA 3000
SPZ 1662SPA 3000 CRE
SPZ 1662 CRESPA 3150
SPZ 1687SPA 3150 CRE
SPZ 1700SPA 3182
SPZ 1700 CRESPA 3350
SPZ 1712SPA 3450
SPZ 1737SPA 3550
SPZ 1750SPA 3600
SPZ 1750 CRESPA 4000
SPZ 1762SPA 4250
SPZ 1762 CRESPA 4500
SPZ 1787
SPZ 1800
SPZ 1800 CRE
SPZ 1837
SPZ 1850
SPZ 1850 CRE
SPZ 1862
SPZ 1887
SPZ 1900
SPZ 1900 CRE
SPZ 1937
SPZ 1950
SPZ 1950 CRE
SPZ 2000
SPZ 2000 CRE
SPZ 2030
SPZ 2030 CRE
SPZ 2040 CRE
SPZ 2060
SPZ 2087
SPZ 2120
SPZ 2120 CRE
SPZ 2137
SPZ 2150
SPZ 2160
SPZ 2160 CRE
SPZ 2187
SPZ 2280
SPZ 2280 CRE
SPZ 2300
SPZ 2360
SPZ 2360 CRE
SPZ 2410
SPZ 2500
SPZ 2540
SPZ 2690
SPZ 2840
SPZ 3000
SPZ 3000 CRE
SPZ 3170
SPZ 3350
SPZ 3550
SPZ 3550 CRE


V-Belt tension

The most critical factor in V-Belt life is BELT TENSION.

Excessive force should never be needed to pass the belts over the pulleys, one of the pulleys should have sufficient adjustment to allow fitting to take place. A belt tension indicator should be used to set the belts to the maximum appropriate tension. The drive should be run under load for at least 30 minutes, after which the tension should be checked and adjusted. After 10-14 days of operation, a further check the belt tension should be made. Periodic maintenance and inspection should be carried out.

Over tensioning will shorten both belt and bearing life.

The use of "belt dressings" is not recommended.

Belt sectionForce req. to deflect belt 16mm/m of span
Small pulley Ø mmNewton
SPZ67 - 9513 - 20
100 - 14020 - 25
SPA90 - 13225 - 35
140 - 20035 - 45
SPB140 - 22445 - 65
236 - 31565 - 85
SPC224 - 35585 - 115
375 - 560115 - 150
M(Z)56 - 1005 - 7.5
A80 - 14010 - 15
B125 - 20020 - 30
C200 - 40040 - 60
D355 - 60070 - 105
#

Center distance adjustment allowance

It is prudent design to allow for the following center distance movement for installation and tensioning

InstallationBelt lengthTake Up
mmmmmm
20370 - 84010
840 - 115515
251155 - 154020
1540 - 181025
301810 - 219030
2190 - 288040
502880 - 349050
3490 - 406060
205010 - 610085
256100 - 7630105
307630 - 8410125
508410 - 10670145
6510670 - 12220175



#

Alignment

Good alignment of pulleys is important to avoid wear on the belt flanks. Shafts should be parallel and in proper alignment, the pulley faces should also be aligned.

Jockey Pulleys

Jockey pulleys are normal grooved pulleys fitted inside the slack side of the belt system, as close the large pulley as possible. Any jockey pulley must be the same diameter as the smallest pulley in the system.

Flat pulleys should be positioned on the outside of the drive and are acceptable for V belt systems only (not Wedge belts). They should be positioned as within 1/3 of the center distance from the driven pulley.

Adequate allowance must be made for jockey pulley movement to cater for installation, take up and tensioning.

V-Belt troubleshooting


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