Catalog: Gears
Company/Brand: HPC Gears
worm and wheel gear in Gears by HPC Gears
19/7/07 15:36 page 1 contents products and services custom made products pictorial ... index ratchets and pawls toothed bar stock pulleys and ... belts guides and tensioners 2-6 7 8 9 13 17 163 213 237 ... 351 365 383 405 410 423 585 sprockets and chains bevel gears worms and wheels ... breakers plastic chains anti-backlash wormwheels internal gears double gears anti- ... backlash gears pinions and pinion shafts budget range racks ... flexible racks and fixings spur gears helical gears parallel 669 helical ... gears crossed 749 engineering materials ... technical information section 755 terms and conditions 831 index by name by part ... number 833 order form and technical enquiry form 839 ...
technical request non-standard worms wheels quantity material number of teeth ... fixing screw photocopy double size and fax on +44 01246 260003 yes no fixing ... keyway hardened yes yes no no worm bored type shaft type wheel cts ...
s ection worms and wheels pages 238 317 on larger worm wheels ... it is recommended to use sw type worm shafts or the boss diameter on the ... bored worms needs to be reduced to the root ... pages 808 814 for non-standard worms and wheels use form on opposite page or ...
worms wheels 0.4 mod 1.257mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø9 Ø9.8 m3 3.5 1 5 list ... 200 42 discounts steel 214 m15 en202 worms wheels bronze steel mod 0.4 18 25 ... 4 £36.76 shaft type Ø9 25 Ø9.8 25 75 25 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 4 10 6 double bossed wheels available price x 1.4 4 238 unit 14 ...

worms wheels 0.5 mod 1.571mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø12 Ø13 m3 3.5 1 5 list ... w0.5-1 w0.5-2 w0.5-3 w0.5-4 unhardened worms wheels bronze steel mod 0.5 18 25 90 ... 5-1 swh0.5-2 swh0.5-3 swh0.5-4 hardened wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 5 10 5 double bossed wheels available price x 1.4 5 242 unit 14 ...

worms wheels 0.8 mod 2.513mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø12 Ø13.6 m3 1 5 list price ... -3 pin hole thru Ø1.5 w0.8-4 unhardened worms wheels bronze steel mod 0.8 22 30 ... sw0.8-4 £26.90 4 14°55 swh0.8-4 £38.28 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 6 12 6 double bossed wheels available price x 1.4 6 246 unit 14 ...

worms wheels 1 mod 3.142mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø15 Ø17 m4 1 5 list price 6 ... w1-3 pin hole w1-4 thru Ø2 unhardened worms wheels bronze steel mod 1 32 40 price ... 40 sw1-4 £32.08 4 14°56 swh1-4 £45.58 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 8 15 7 double bossed wheels available price x 1.4 8 250 unit 14 ...

worms wheels materials std phosphor bronze pb2 1.25 ... mod 3.927mm pitch and steel 214 m15 en202 lead angle right ... 200 42 discounts 20° pressure angle worm bored type Ø16 Ø18.5 m4 steel 214 m15 ... -3 pin hole thru Ø2 w1.25-4 unhardened worms wheels bronze steel mod 1.25 32 40 ... .25-4 £32.08 4 17°21 swh1.25-4 £45.58 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 11 20 9 double bossed wheels available price x 1.4 11 254 unit 14 ...

worms wheels 1.5 mod 4.712mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø20 Ø23 m5 1 5 list price 6 ... .5-3 pin hole w1.5-4 thru Ø3 unhardened worms wheels bronze steel mod 1.5 35 45 ... sw1.5-4 £37.24 4 16°42 swh1.5-4 £52.89 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 12 22 10 double bossed wheels available price x 1.4 12 258 unit 14 ...

worms wheels 2 mod 6.283mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø25 Ø29 m5 1 5 list price 6 ... w2-3 pin hole w2-4 thru Ø5 unhardened worms wheels bronze steel mod 2 38 50 price ... 50 sw2-4 £54.40 4 17°45 swh2-4 £77.24 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 20 32 12 double bossed wheels available price x 1.4 20 262 unit 14 ...

worms wheels 2.5 mod 7.854mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø30 Ø35 m6 1 5 list price 6 ... .5-3 pin hole w2.5-4 thru Ø5 unhardened worms wheels bronze steel mod 2.5 45 60 ... .5-4 £79.11 4 18°26 swh2.5-4 £109.18 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 22 35 13 double bossed wheels available price x 1.4 22 266 unit 14 ...

worms wheels 3 mod 9.425mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø35 Ø41 m8 1 5 list price 6 ... w3-3 pin hole w3-4 thru Ø6 unhardened worms wheels bronze steel mod 3 55 70 price ... 80 sw3-4 £93.27 4 18°55 swh3-4 £115.15 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 25 40 15 double bossed wheels available price x 1.4 25 270 unit 14 ...

worms wheels 4 mod 12.56mm pitch std phosphor ... bronze pb2 and steel 214 m15 en202 lead angle right ... standard materials 20° pressure angle worm bored type Ø50 Ø58 m8 1 5 list price 6 ... w4-3 pin hole w4-4 thru Ø8 unhardened worms wheels bronze steel mod 4 60 80 price ... sw4-4 £110.11 4 17°45 swh4-4 £140.32 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 35 50 15 double bossed wheels available price x 1.4 35 274 unit 14 ...

c28 278-317 dp worm wheels 21/8/07 10:46 page 278 worms wheels 64 ... 0.0491 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m3 Ø9.53 Ø10.32 18 25 steel ... -2 £33.97 swh64-3 £35.63 swh64-4 £36.75 worms wheels bronze steel dp 64 shaft type ... 23.92 2 3 sw64-3 £25.09 sw64-4 £25.86 4 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m tip Ø cts pm pcd bore Ø boss Ø throat ... Ø 4 10 6 double bossed wheels available price x 1.4 4 278 unit 14 ...

c28 278-317 dp worm wheels 21/8/07 10:47 page 282 worms wheels 48 ... 0.0654 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m3 Ø12.70 Ø13.76 19.05 25.40 ... -2 £34.89 swh48-3 £36.55 swh48-4 £38.25 worms wheels bronze steel dp 48 shaft type ... 24.56 2 sw48-3 £25.73 3 sw48-4 £26.88 4 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 4.76 4.76 double bossed wheels available price x 1.4 4.76 9.52 282 ...

c28 278-317 dp worm wheels 21/8/07 10:48 page 286 worms wheels 32 ... 0.0982 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m3 Ø12.70 Ø14.28 22.22 31.75 ... .84 w32-4 £16.63 4 14°02 wh32-4 £23.64 worms wheels bronze steel dp 32 shaft type ... sw32-4 £26.88 4 14°02 swh32-4 £38.25 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 6.35 6.35 double bossed wheels available price x 1.4 6.35 12.70 286 ...

c28 278-317 dp worm wheels 21/8/07 10:49 page 290 worms wheels 24 ... 0.1309 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type Ø15.88 Ø18.00 m4 steel 214 ... sw24-4 £32.06 4 14°55 swh24-4 £45.57 worms wheels bronze steel dp 24 28.58 38.10 ... shaft type Ø15.88 40 Ø18.00 40 120 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 7.94 7.94 double bossed wheels available price x 1.4 7.94 15.88 290 ...

c28 278-317 dp worm wheels 21/8/07 10:50 page 294 worms wheels 20 ... 0.1571 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m4 Ø15.88 Ø18.42 28.58 38.10 ... sw20-4 £32.06 4 17°44 swh20-4 £45.57 worms wheels bronze steel dp 20 shaft type ... Ø15.88 40 Ø18.42 40 120 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 11 20 9 double bossed wheels available price x 1.4 11 294 unit 14 ...

c28 278-317 dp worm wheels 21/8/07 10:52 page 298 worms wheels 16 ... 0.1963 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m5 Ø19.05 Ø22.22 35 44.45 ... .29 w16-4 £22.33 4 18°26 wh16-4 £31.73 worms wheels bronze steel dp 16 shaft type ... sw16-4 £34.77 4 18°26 swh16-4 £49.41 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 12.7 9.52 double bossed wheels available price x 1.4 12.7 22.22 298 ...

c28 278-317 dp worm wheels 21/8/07 10:53 page 302 worms wheels 12 ... 0.2618 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m5 Ø25.40 Ø29.63 38.10 50.80 ... .48 w12-4 £39.97 4 18°26 wh12-4 £56.76 worms wheels bronze steel dp 12 shaft type ... sw12-4 £54.38 4 18°26 swh12-4 £77.23 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 19.05 12.70 31.75 double bossed wheels available price x 1.4 19.05 302 unit ...

c28 278-317 dp worm wheels 21/8/07 10:54 page 306 worms wheels 10 ... 0.3141 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m6 Ø31.75 Ø36.83 45 60 steel ... sw10-4 £79.11 4 17°44 swh10-4£109.18 worms wheels bronze steel dp 10 shaft type ... Ø31.75 60 Ø36.83 60 180 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 22 35 13 double bossed wheels available price x 1.4 22 306 unit 14 ...

c28 278-317 dp worm wheels 21/8/07 10:55 page 310 worms wheels 8 ... 0.3925 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m8 Ø34.93 Ø41.28 55 70 steel ... 80 sw8-4 £93.27 4 19°58 swh8-4 £115.15 worms wheels bronze steel dp 8 shaft type Ø ... 34.93 80 Ø41.28 80 240 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 25 40 15 double bossed wheels available price x 1.4 25 310 unit 14 ...

c28 278-317 dp worm wheels 21/8/07 10:56 page 314 worms wheels 6 ... 0.5236 pitch std phosphor bronze pb2 and steel 214 m15 en202 materials lead ... 37 100 200 42 20° pressure angle worm bored type m8 Ø50.80 Ø59.27 60 80 steel ... sw6-4 £110.11 4 18°26 swh6-4 £140.32 worms wheels bronze steel dp 6 shaft type Ø ... 50.80 90 Ø59.27 90 270 wheel phosphor bronze pb2 reduction ratio ... no of teeth in wheel no of teeth in worm m pm tip Ø cts pcd bore Ø boss Ø throat ... Ø 35 50 15 double bossed wheels available price x 1.4 35 314 unit 14 ...

std phosphor bronze pb2 and steel 080 m40 en8 materials budget ... worms wheels 20° p.a 1 mod 3.142mm pitch lead angle ... right hand standard worms wheels note when ordering the wormwheel the ... number of starts on the mating worm must be specified worm Ø18 Ø16 steel ... ratios in low loading applications the worm is manufactured from bs 80 m40 en8 ... steel and the wormwheels from pb2 phosphor bronze the worm ... complete with grubscrew fixing ew em wheel phosphor bronze pb2 unhardened cts ...

/07 15:47 page 755 general tapped holes and threads .756 ... 763 gear tooth sizes ... index belts timing belt formulae terms and definitions .771 772 timing belt ... .801 spur gears helical gears formulas ... .807 bevel gears formulas ... factors .810 worms wheels formulas ... 812 bending and surface stress factors .813 ... efficiency of worms .814 chains ... chain connecting links simplex duplex and triplex .820 index ... techni ca lsection gearing chains all figures given are as a guide ... only and no responsibility is taken by hpc gears ...

are dependent on the required pitch gears gear type range 120 1 dp 0.2 25 mod 1 ... to Ø60 x 500 long depending on cutter and pitch up to 3000 long 120 in one piece ... 0.400 20 Ø5 Ø600 0.200 24 spur gears helical gears sprockets internal gears ... general techni ca lsection worm wheels worms racks bevels timing pulleys pinion ... gears components type boring assembly jig ... boring light vertical boring gearbox mm max area of 610 x 155 24 x 6 up to ... 150 up to Ø40 cnc co-ordinate milling and boring up to 152-4mm 6 stroke cnc ... precision turning and boring precision diameter grinding ...
0.8 6 mod 48 5 dp hpc capacity and backlash other pitches available on ... htd3 htd5 htd8 htd14 at5 at10 at20 worms wheels racks standard special 0.4 4 ... 1/2 p.a backlash corresponding to pitch gears backlash mm approx backlash 0.07 0. ...

21/8/07 15:51 page 808 formulas bevel gears to find:d pcd pitch angle for 90° ... mm n no of teeth -1 n y tan deg n -1 wheel n or n x mod dp ins mm n no of teeth d ... 90 y deg y y tan gearing shaft angle pitch angle for shaft ... greater than 90° indicates an internal gear please contact technical to determine ... if the gear can be cut ao techni ca lsection ... formulas worms wheels to find:Ød tangent of the lead angle ... pcdmm module x no of starts pcd pcd worm pcd wheel in mm 2 module no of teeth ... pcd dp cp x no of starts pcd x pcd worm pcd wheel 2 imperial no of teeth 2 ... dp no of teeth dp inches no of teeth in wheel no of starts in worm our worms and ... wormwheels are made to give 0.08 0.15mm backlash ... +0.00 +0.05mm centre distance pcd worm pcd wheel 2 808 unit 14 foxwood ...

/8/07 15:51 page 811 load calculations worms wheels bsi 721 1937 torque capacity ... see tables effective face width of wheel wear 0.18 sc xc efw d1.8 strength 1.8sb ... xb lr m d cos lbs ins lbs ins gearing speed factor for strength constant ... value addendum in inches wheel pcd length at root of wheel teeth in ... lsection cos cosine of lead angle of worm rubbing speed feet/minute worm pcd x ... secant lead angle 12 efw 2 x addendum worm o/d addendum x 0.01745 note the ... lowest of the four values for worm and wheel gives the gear rating lr 2 x ° x worm ... o/d 2 cos pcd of worm o/d of worm angle ° cos -1 running time hours ... per day no of teeth in gear wear strength xc and xb to be divided ...

21/8/07 15:51 page 813 bending and surface stress factors worms wheels ... wheel wheel materials bending stress factor sb ... 6,000 find surface stress factor sc for wheel under worm material classification ... centrifugally cast cast iron gray gearing 1600 2000 750 worm hpc `standard ... wheels use sand cast pb2 for standard ... hardened worms use 1400 sc value for wheels find surface stress factor sc for ... bending stress wheel under worm material factor sb worm materials ... steel note section e hardened ground and polished hpc standard worms unhardened ... not be used except for hand operated gearing unit 14 foxwood industrial park foxwood ...

21/8/07 15:51 page 814 efficiency worms wheels excluding bearing and oil ... churning losses values are based on pb2 wheels and case hardened and ground and ... polished worms lubricated by mineral oil the ... running in period note as hpc standard worms are not hardened ground and polished ... tan <° tan ° <° x 100 tan-1 f gearing <° lead angle f coeffieient of ... 100 coefficients of friction for worm gearing rubbing speed ft per c min 30 40 50 60 ...