Idler Catalogue. Specialist designers and manufacturers of heavy duty conveyor components.

Transcription

1 Idler Catalogue Specialist designers and manufacturers of heavy duty conveyor components.

2 Introduction Effective movement of goods and bulk materials demands state of the art technology. Lorbrand has over 100 combined years experience specialising in conveyor pulleys, rollers, belting, scrapers, ploughs and components. Qualifying us as one of the worlds most experienced suppliersof equipment for all types of conveyors and automatic material handling systems. Lorbrand s company philosophy has always been and continues to be to satisfy, the needs, requests and problems of our customers providing not only products of superior quality but a service with the goal of supporting the profitability of it s customers. We trust you will find this catalogue of value. Lorbrand is the leading choice in conveyor technology and equipment.

3 Steel Rollers Lorbrand carry a large range of rollers to suit most conveying applications. This enables the customer to receive the most cost-effective solution. Installations include coal, gold, platinum, diamond and copper mines, shiploading terminals and long high capacity conveyors throughout the world. The centrifical self-cleaning action of the seals ensure that bearings are able to achieve the design life. The grease-free sealing system results in much lower friction values than conventional designs. Steel Roller Series Roller Diameter (mm) Shell Wall Thickness (mm) Nominal Shaft Diameter (mm) Designation Bearing Dynamic load Rating (N) RS 12, / RS 14, / RS 22, / / RS 19, /5 4/ RS 28, /5 4/ RS 25, RS 41, RS 52, RS 61, / RS 81,900

4 Steel Rollers cont. & Specifications Precision E.R.W. Conveyor tube Full M.I.G weld protected from belt wear Rotating electroplated metal seals expels dirt centrifugally and drains water away Durable, high-impact resistance outer seal Solid steel shaft with bearing seat preparation by a proprietary technique Quality sealed deep grooved ball bearings greased and sealed by bearing manufacturers. No relubrication necessary because contamination stays outside and the grease stays inside High accuracy and strength bearing housing ensures long bearing life Bearings Deep grooved double sealed bearings of tolerance class C3 and C4 are used. This allows for a larger amount of angular misalignment at the bearing than other bearing designs and classes. Steel Tube Only high quality tube specially manufactured for conveyor rollers is used and conforms to SABS 657/3 (1980). Shell ends are machined to prevent belt wear. Steel Shaft Manufactured from steel which complies with the requirements for grade 070 M20 of BS The shaft diameter tolerance is as recommended by bearing manufacturers and ensures a js6 fit. Shaft end slots are machined to customer standards. Bearing Housing Manufactured from deep drawing material KHR1. Housing are pressed and MIG-welded to the inside of the tube. Corrosion Protection External coat of self etch primer unless otherwise specified. Internal corrosion protection available on request. Circular Movement Tolerance (TIR): TIR Roller Face Length (mm) D 127 D>127 Up to to to 1, ,602 to 2, TIR does not exceed 0.5mm measured at a distance of 25mm from the roller end face. Maximum Frictional Force: Roller DIA (mm) Frictional Force* (N) *Figures for a rotational speed of 650 rpm and a radially applied load of 250N. Figures for lowest available series. Average breakaway force for each production batch is also available on request.

5 Seal Design Primary Sealing The secret to the success of the primary sealing area lies in the fact that dirt, which enters, is ALLOWED TO ESCAPE. The reinforced plastic seal collects dirt and flings it radially outward due to centrifugal force (3-9 times gravitational). Most roll manufacturers fail to realize that dirt WILL penetrate the primary sealing area and that the only way to expel this dirt is by centrifugal force. Most primary seals are thus dirt-catchers! Secondary Sealing Dirt, which enters secondary sealing area, is again propelled outwards by centrifugal force. All sealing surfaces are clean and free from contact and do not require packing with grease. The sealing arrangement is so designed that water drains out of the seal when the idler is stationary. Most secondary seals on the market are of the labyrinth type and centrifugal force actually helps keep dirt in the sealing area where it can work its way to the bearing. Bearing Sealing Deep groove, greased for life bearings complete with seals on both sides are recommended instead of cheaper alternatives. The bearing seals form the final barrier against dirt ingress especially rust particles, which are formed due to condensation inside the shell tube.

6 Impact and Rubber Disc Rollers Impact and rubber disc rolls consist of steel reinforced rubber impact discs press fitted onto a conventional steel roller body. Each rubber disc is positively located and there is no possibility of rubbers moving due to impact loads. Spacers and end stops are not required. Apart from the rubber discs, the same components and seals are used for the steel rollers. Rubber Disc Roller Series Roller Diameter (mm) Nominal Shaft Diameter (mm) Designation Bearing Dynamic load Rating (N) RS 14, RS 19, RS 28, RS 41, RS 61,800

7 Roller Selection The following procedure shows the step-by-step procedure in choosing the correct roller series. The selection procedures ensures that angular shaft deflection at the bearing due to load is kept below 7 minutes (2 milliradians) and a minimum theoretical bearing life of 20,000 hours is achieved when operating within the recommended speed range. Determine Load per Idler Station Load per station (kg) = S (W b + Q /3.6V) Where: Determine Maximum Static Force Experienced by The Carrying and Return Roll Determine the participation factor from the table below. The participation factor is the fraction of the load taken by the roller which experiences the greatest load versus the total station load. Station Type Participation Factor (p) S = spacing between idler stations 0.6 W b = weight of belt per running metre (kg/m) (see pg 25 for estimate masses) Q = capacity (tons/hr) These factors are valid for A x /A f 0.8 where A x is the actual cross-sectional area of the material conveyed. 1 V = belt speed (m/s) A x = Q /3.6 V For idler return stations, Q = O This calculated load can be used to determine the appropriate CEMA rating (see pg 23) = material density (kg/m3) (see material characteristics on page 24) A f = cross sectional area of full belt (see material characteristics on page 25) The maximum force on the roller is thus: Roller Options F = ps (W b + Q /3.6V) Outside of our steel range of rollers we manufacture a complete range of idlers in the following configurations; Aluminium Composite/HDPE Nylon - with FRAS Option Polyurethane Disk Return Rolls HDPE Sleeved - Aluminium and Steel rolls Hollow Shaft - rolls between 700mm & 1700mm face (in any of the above variantions)

8 Roller Selection Select the Roller Series Read off the roller in question (pg26) and refer to the load charts (pg26), choose a roller series, which gives a higher allowable load than the calculated load. The roller should also operate within the speed range indicated below. It is generally more economical to choose a higher shaft series roller than to use stepped shafts. This is especially the case for troughing rollers. Return rollers are often manufactured with stepped shafts so that the same roller series can be used on installation as the troughing rollers. The percentage cost increase per roller is also lower for return rollers. Roller DIA (mm) Maximum Belt Speed (m/s) For stepped shafts, multiply the allowable load by the load factor (W) obtained from the graph on page 27. This will give the modified allowable load for a shaft diameter (d 2 ) between bearings. Note the available d 2 range indicated on the graph. The actual load should not exceed the first figure on every chart. These values represent loads which will give a theoretical bearing life of between 20,000 and 40,000 hours when operating within the recommended speed range. Before making a final decision, consideration should also be given to the effect of the roller diameter on running and start-up friction. The larger the roller diameter, the lower the friction. This will result in savings on power consumption and possibly also on power transmission equipment in the case of new conveyors. A larger Diameter also results in longer roller life due to a slower rotational speed. The average break-away (start up) friction value for each roller series is available for designers. This can later be verified by test equipment during manufacture, Nomenclature C Dynamic Load Rating (N) W Load Factor D Roller Diameter (m) F Maximum Load on Roller (kg) n Rotational Speed of Roller (rpm) P Load on Bearing (N) V Belt Speed (m/s) d 1 Nominal Shaft Diameter (mm) Q Capacity (Ton/hr) P Participation factor S Spacing between Idler Stations (m) A x Actual Cross sectional Area of Material (m2) d 2 Shaft Diameter between Bearings (mm) Material Density (kg/m3) W b Weight of Belt per Running Metre (kg/m) A f Material Cross sectional Area Full Belt, Standard edge distance (m2)

9 Notes on Selection Procedure 1. To calculate the bearing life, L10h (hrs) use the formula: L10h = (1,000,000/60n) (C/P) 3 Where: c = dynamic load rating (N), see page 14 P n = load on bearing (N) = 9.8 F/2 (F in kg) = rotational speed (min -1 ) = 60V/3.14xD D is the roll diameter (m) 2. This selection procedure ensure that theoretical bearing life is above 20,000 hours and is dependant on the bearing load, type of bearing and rotational speed. 3. Additional loads due to belt deviation and impact are not considered. Lump sizes above 350mm combined with material densities above 1,600 kg/m 3 require an additional factor for the impact condition. This selection procedure is also not valid for impact roller selection, Consult Advanced Conveyor Technology. 4. Consideration should be given to the two wall thickness options available for the 127 and 152 diameter rolls. An increase in wall thickness will be an advantage in installations where the failure mode is likely to be shell wear.

10 Examples Example 1 Coal transported at 3/ms at a rate of 1,400 tph. Belt width is 1,200mm. 3 roll, 35 troughing idlers at 1.5 meter spacing. 2 roll, 10 return idlers at 3 meter spacing F = ps (W b +Q/3.6 V), A x /A f = 0.162/0.177 = therefore p is valid. F trough = 0.68 x 1.5 (15+ 1,400/3.6 x 3) = 148 kg Face length = 450 mm Allow. load (ser 20) = 83 kg (not suitable) Allow. load (ser 25) = 175 kg F = return = 0.6 x 3.0 (15) = 27 kg Face length = 635 mm Allow. load (ser 20) = 56 kg Allow. load (ser 25) = 118 kg Choose series 25 with RS bearings with either 101 or 127 diameter. A choice in the 127 diameter roll, will result in two advantages: 1. A longer roller life 2. Lower power consumption due to low friction Example 2 Wheat conveyed at a grain terminal, 900 tph is required. Design for a full 1,200m belt. Use, 3 roll, 45 troughing idlers at 1.0 metre spacing and single roll return idlers at 3.0 metre spacing. From material characteristics table (pg 24), angle of surcharge = 0 and kg/m 3 From cross-sectional areas charts for full belts (pg 25), A x = A f = = Q/3.6 V, there fore V = 2.5 m/s. (required) F trough = 0.72 x 1.0 ( /3.6 x 2.5) = 79 kg Face length = 450 mm Allow. load (ser 20) = 83 kg F = return = 1 x 3.0 (10) = 30 kg Face length = 1298 mm Allow. load (ser 20) = 26 kg (not suitable) Try a stepped shaft of 22 mm (d 2 ) Load factor = 1.45 Allow. load (ser 20/22) = 38 kg Choose series 20 rollers with 89 or 101 diameter tube. Specify a 22 mm shaft for the return rollers.

11 3 Roll Trough Idlers Series 20 Series 20-3 Roll Trough Idlers 89 DIA Bearing RS B B B B B B B B Series 20-3 Roll Trough Idlers 102 DIA Bearing RS B B B B B B B B

12 3 Roll Trough Idlers Series 20 Series 20-3 Roll Trough Idlers 114 DIA Bearing RS B B B B B B B B Series 20-3 Roll Trough Idlers 127 DIA Bearing RS B B B B B B B B

13 3 Roll Trough Idlers Series 25 Series 25-3 Roll Trough Idlers 102 DIA Bearing RS B B B B B B B B B B B Series 25-3 Roll Trough Idlers 114 DIA Bearing RS B B B B B B B B B B B

14 3 Roll Trough Idlers Series 25 Series 25-3 Roll Trough Idlers 127 DIA Bearing RS B B B B B B B B B B B Series 25-3 Roll Trough Idlers 133 DIA Bearing RS B B B B B B B B B B B

15 3 Roll Trough Idlers Series 25 Series 25-3 Roll Trough Idlers 139 DIA Bearing RS B B B B B B B B B B B Series 25-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B

16 3 Roll Trough Idlers Series 25/27 Series 25-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B Series 27-3 Roll Trough Idlers 127 DIA Bearing RS B B B B B B B B B B B

17 3 Roll Trough Idlers Series 27 Series 27-3 Roll Trough Idlers 133 DIA Bearing RS B B B B B B B B B B B Series 27-3 Roll Trough Idlers 139 DIA Bearing RS B B B B B B B B B B B

18 3 Roll Trough Idlers Series 27 Series 27-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B Series 27-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B

19 3 Roll Trough Idlers Series 25/27 *For impact idlers change B in designation number to K (not available in series 20). When ordering, specify bearing option by listing first two numbers of bearing part number (62 or 63) at the end of the designation number also specify the trough angle, shell wall thickness option (if available) and shaft diameter between bearings if this differs from the series diameter. Note: Masses listed are for idlers with steel rollers. Masses, for impact idlers available on request. WK2 values also available.

20 3 Roll Trough Idlers Series 30 Series 30-3 Roll Trough Idlers 127 DIA Bearing RS B B B B B B B B B B B Series 30-3 Roll Trough Idlers 133 DIA Bearing RS B B B B B B B B B B B

21 3 Roll Trough Idlers Series 30 Series 30-3 Roll Trough Idlers 139 DIA Bearing RS B B B B B B B B B B B Series 30-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B

22 3 Roll Trough Idlers Series 30/32 Series 30-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B Series 32-3 Roll Trough Idlers 127 DIA Bearing RS B B B B B B B B B B B

23 3 Roll Trough Idlers Series 32 Series 32-3 Roll Trough Idlers 133 DIA Bearing RS B B B B B B B B B B B Series 32-3 Roll Trough Idlers 139 DIA Bearing RS B B B B B B B B B B B

24 3 Roll Trough Idlers Series 32 Series 32-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B Series 32-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B

25 3 Roll Trough Idlers Series 32 Series 32-3 Roll Trough Idlers 178 DIA Bearing RS B B B B B B B B B B B

26 3 Roll Trough Idlers Series 35 Series 35-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B B Series 35-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B B

27 3 Roll Trough Idlers Series 35/40 Series 35-3 Roll Trough Idlers 178 DIA Bearing RS B B B B B B B B B B B B Series 40-3 Roll Trough Idlers 152 DIA Bearing RS B B B B B B B B B B B B

28 3 Roll Trough Idlers Series 40 Series 40-3 Roll Trough Idlers 159 DIA Bearing RS B B B B B B B B B B B B Series 40-3 Roll Trough Idlers 178 DIA Bearing RS B B B B B B B B B B B B

29 3 Roll Trough Idlers Series 40 Series 40-3 Roll Trough Idlers 193 DIA Bearing RS B B B B B B B B B B B B Series 40-3 Roll Trough Idlers 219 DIA Bearing RS B B B B B B B B B B B B

30 3 Roll Trough Idlers Series 45 Series 45-3 Roll Trough Idlers 152 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 45B B B B B B B B B B Series 45-3 Roll Trough Idlers 159 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 45B B B B B B B B B B

31 3 Roll Trough Idlers Series 45 Series 45-3 Roll Trough Idlers 178 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 45B B B B B B B B B B Series 45-3 Roll Trough Idlers 193 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 45B B B B B B B B B B

32 3 Roll Trough Idlers Series 50 Series 50-3 Roll Trough Idlers 178 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 50B B B B B B B B B B Series 50-3 Roll Trough Idlers 193 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 50B B B B B B B B B B

33 3 Roll Trough Idlers Series 50 Series 50-3 Roll Trough Idlers 219 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 50B B B B B B B B B B *For impact idlers change B in designation number to K (not available for 127 Dia). When ordering, specify series option (first two numbers) and bearing option (last two numbers). Also specify the trough angle, shell wall thickness option (if available) and shaft diameter between bearings if this differs from the series diameter. Note: 1. Rotating and total masses listed are for idlers with steel rollers and the lower series option only. Masses, for impact idlers and higher series option available on request. WK2 values also available. 2. Series 50 x 152 Dia. fitted with solid CNC machined bearing housings. Use this idler for very high load applications.

34 3 Roll Trough Idlers Series 60 Series 60-3 Roll Trough Idlers 193 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 60B B B B B B B B Series 60-3 Roll Trough Idlers 219 DIA Bearing RS PART NUMBER BW F L C D C D C D H B R.M. TOTAL 60B B B B B B B B

35 3 Roll Trough Impact Idlers Series 25 Series 25-3 Roll Trough Impact Idlers 127 DIA Bearing RS K K K K K K K K K K K Series 25-3 Roll Trough Impact Idlers 133 DIA Bearing RS K K K K K K K K K K K

36 3 Roll Trough Impact Idlers Series 25 Series 25-3 Roll Trough Impact Idlers 152 DIA Bearing RS K K K K K K K K K K K Series 25-3 Roll Trough Impact Idlers 159 DIA Bearing RS K K K K K K K K K K K

37 3 Roll Trough Impact Idlers Series 27 Series 27-3 Roll Trough Impact Idlers 127 DIA Bearing RS K K K K K K K K K K K Series 27-3 Roll Trough Impact Idlers 133 DIA Bearing RS K K K K K K K K K K K

38 3 Roll Trough Impact Idlers Series 27 Series 27-3 Roll Trough Impact Idlers 152 DIA Bearing RS K K K K K K K K K K K Series 27-3 Roll Trough Impact Idlers 159 DIA Bearing RS K K K K K K K K K K K

39 3 Roll Trough Impact Idlers Series 30 Series 30-3 Roll Trough Impact Idlers 127 DIA Bearing RS K K K K K K K K K K K Series 30-3 Roll Trough Impact Idlers 133 DIA Bearing RS K K K K K K K K K K K

40 3 Roll Trough Impact Idlers Series 30 Series 30-3 Roll Trough Impact Idlers 152 DIA Bearing RS K K K K K K K K K K K Series 30-3 Roll Trough Impact Idlers 159 DIA Bearing RS K K K K K K K K K K K

41 3 Roll Trough Impact Idlers Series 32 Series 32-3 Roll Trough Impact Idlers 152 DIA Bearing RS K K K K K K K K K K K Series 32-3 Roll Trough Impact Idlers 178 DIA Bearing RS K K K K K K K K K K K

42 3 Roll Trough Impact Idlers Series 35 Series 35-3 Roll Trough Impact Idlers 178 DIA Bearing RS K K K K K K K K K K K K Series 35-3 Roll Trough Impact Idlers 203 DIA Bearing RS K K K K K K K K K K K K

43 3 Roll Trough Impact Idlers Series 40 Series 40-3 Roll Trough Impact Idlers 178 DIA Bearing RS K K K K K K K K K K K K Series 40-3 Roll Trough Impact Idlers 203 DIA Bearing RS K K K K K K K K K K K K

44 3 Roll Trough Impact Idlers Series 45/50 Series 45-3 Roll Trough Impact Idlers 203 DIA Bearing RS PART NUMBER BW F L IMPACT ROLLS FITTED WITH SOLID CNC MACHINED BEARING HOUSINGS C D C D C D H B R.M TOTAL 45K K K K K K K K K K Series 50-3 Roll Trough Impact Idlers 203 DIA Bearing RS PART NUMBER BW F L IMPACT ROLLS FITTED WITH SOLID CNC MACHINED BEARING HOUSINGS C D C D C D H B R.M TOTAL 50K K K K K K K K K K

45 3 Roll Trough Impact Idlers Series 60 Series 60-3 Roll Trough Impact Idlers 250 DIA Bearing RS K K K K K K K K

46 Vee Return Idlers Series 25 Series 25 - Vee Return Idlers 102 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 25 - Vee Return Idlers 114 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

47 Vee Return Idlers Series 25 Series 25 - Vee Return Idlers 127 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 25 - Vee Return Idlers 133 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

48 Vee Return Idlers Series 25 Series 25 - Vee Return Idlers 139 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 25 - Vee Return Idlers 152 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

49 Vee Return Idlers Series 25/27 Series 25 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 27 - Vee Return Idlers 102 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

50 Vee Return Idlers Series 27 Series 27 - Vee Return Idlers 114 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 27 - Vee Return Idlers 127 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

51 Vee Return Idlers Series 27 Series 27 - Vee Return Idlers 133 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 27 - Vee Return Idlers 139 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

52 Vee Return Idlers Series 27 Series 27 - Vee Return Idlers 152 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D Series 27 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 25D D D D D D D D D

53 Vee Return Idlers Series 30 Series 30 - Vee Return Idlers 127 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 30D D D D D D D D D Series 30 - Vee Return Idlers 133 DIA Bearing RS 5 10 B PART NUMBER BW F L C D H C D H R.M TOTAL 30D D D D D D D D D

54 Vee Return Idlers Series 30 Series 30 - Vee Return Idlers 139 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 30D D D D D D D D D Series 30 - Vee Return Idlers 152 DIA Bearing RS 5 10 B PART NUMBER BW F L C D H C D H R.M TOTAL 30D D D D D D D D D

55 Vee Return Idlers Series 30 Series 30 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 30D D D D D D D D D

56 Vee Return Idlers Series 32 Series 32 - Vee Return Idlers 152 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 32D D D D D D D D D D D D Series 32 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 32D D D D D D D D D D D D

57 Vee Return Idlers Series 32/35 Series 32 - Vee Return Idlers 178 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 32D D D D D D D D D D D D Series 35 - Vee Return Idlers 152 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 35D D D D D D D D D D D D

58 Vee Return Idlers Series 35 Series 35 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 35D D D D D D D D D D D D Series 35 - Vee Return Idlers 178 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 35D D D D D D D D D D D D

59 Vee Return Idlers Series 40 Series 40 - Vee Return Idlers 152 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D Series 40 - Vee Return Idlers 159 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D

60 Vee Return Idlers Series 40 Series 40 - Vee Return Idlers 178 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D Series 40 - Vee Return Idlers 194 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D

61 Vee Return Idlers Series 40/45 Series 40 - Vee Return Idlers 219 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D Series 45 - Vee Return Idlers 178 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 40D D D D D D D D D

62 Vee Return Idlers Series 45 Series 45 - Vee Return Idlers 194 DIA Bearing RS 5 10 PART NUMBER BW F L C D H C D H B R.M TOTAL 45D D D D D D D D D *For rubber disc return idlers change D in designation number to Y When ordering, specify series option (first two numbers) and bearing option (last two numbers). Also specify shaft diameter between bearings if this differs from the series diameter. Note: 1. Rubber disc rollers not available if no weights listed. 2. Rotating and total masses listed are for idlers with the lower series option only. Masses, for the higher series option available on request. WK2 values also available.

63 Flat Return Idlers Series 20 Series 20 - Flat Return Idlers 89 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 20E E E E E E E E Series 20 - Flat Return Idlers 102 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 20E E E E E E E E

64 Flat Return Idlers Series 20 Series 20 - Flat Return Idlers 114 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 20E E E E E E E E Series 20 - Flat Return Idlers 127 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 20E E E E E E E E

65 Flat Return Idlers Series 25 Series 25 - Flat Return Idlers 102 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E Series 20 - Flat Return Idlers 114 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E

66 Flat Return Idlers Series 25 Series 25 - Flat Return Idlers 127 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E Series 25 - Flat Return Idlers 133 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E

67 Flat Return Idlers Series 25 Series 25 - Flat Return Idlers 139 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E Series 25 - Flat Return Idlers 152 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E

68 Flat Return Idlers Series 25/27 Series 25 - Flat Return Idlers 159 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 25E E E E E E E E Series 27 - Flat Return Idlers 102 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E

69 Flat Return Idlers Series 27 Series 27 - Flat Return Idlers 114 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E Series 27 - Flat Return Idlers 127 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E

70 Flat Return Idlers Series 27 Series 27 - Flat Return Idlers 133 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E Series 27 - Flat Return Idlers 139 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E

71 Flat Return Idlers Series 27 Series 27 - Flat Return Idlers 152 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E Series 27 - Flat Return Idlers 159 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 27E E E E E E E E

72 Flat Return Idlers Series 30 Series 30 - Flat Return Idlers 127 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 30E E E E E E E E E E E Series 30 - Flat Return Idlers 133 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 30E E E E E E E E E E E

73 Flat Return Idlers Series 30 Series 30 - Flat Return Idlers 139 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 30E E E E E E E E E E E Series 30 - Flat Return Idlers 152 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 30E E E E E E E E E E E

74 Flat Return Idlers Series 30 Series 30 - Flat Return Idlers 159 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 30E E E E E E E E E E E

75 Flat Return Idlers Series 32 Series 32 - Flat Return Idlers 152 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 32E E E E E E E E E Series 32 - Flat Return Idlers 159 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 32E E E E E E E E E

76 Flat Return Idlers Series 32 Series 32 - Flat Return Idlers 178 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 32E E E E E E E E E

77 Flat Return Idlers Series 35 Series 35 - Flat Return Idlers 152 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 35E E E E E E Series 35 - Flat Return Idlers 159 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 35E E E E E E

78 Flat Return Idlers Series 35 Series 35 - Flat Return Idlers 178 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 35E E E E E E *For rubber disc return idlers change E in designation number to W When ordering, specify series option (first two numbers) and bearing option (last two numbers). Also specify shaft diameter between bearings if this differs from the series diameter. Note: 1. Rubber disc rollers not available if no weights listed. 2. Rotating and total masses listed are for idlers with the lower series option only. Masses, for the higher series option available on request. WK2 values also available.

79 Flat Return Idlers Series 40 Series 40 - Flat Return Idlers 178 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 45E E E Series 40 - Flat Return Idlers 194 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 45E E E Series 40 - Flat Return Idlers 219 DIA Bearing RS PART NUMBER BW F L B R.M TOTAL 40E E E

80 Self Align Idlers All Series *Series 20, 25, 30, 35, 40 and 50 3 roll flat self align idlers are available. When ordering change B in trough idler designation number to G. Also specify series option and trough angle, shell wall option (if available) and shaft diameter between bearings if this differs from the series diameter. Note: 1. Dimensions D and H are 3mm higher than those listed for standard trough idlers. All mounting and listed dimensions are identical. 2. Total masses are available on request. *Series 20, 25, 30, 35, 40 and 50 flat self align idlers are available. When ordering change E in flat return idler designation number to I. Also specify series option and trough wall option (if available) and shaft diameter between bearings if this differs from the series diameter. Note: 1. The dimension F and the mounting dimensions are identical to the flat return and Vee return idlers. 2. Total masses are available on request. 2 Roll flat return and 2 roll V return self align idlers are also available.

81 Notes on Idler Range 1. All dimensions in millimeters. 2. Bases can be designed and manufactured to suit the application. This may lead to cost savings, especially for larger applications. 3. Idlers can be manufactured to other standards if quantities are sufficient. 4. All masses are approximations and in kilograms 5. Identification terms: The idler designation number describes the following: 30 B /63 Series 30 Type of idler 152 Belt width Roller Diameter First two numbers of bearing designation The designation number and required options must be specified. Example: 750 BW x 35 x 3 roll troughing idler set with 101 DIA x Series 20 rollers would be specified as: 20A x 35 Example: 1,200 BW x 45 x 3 roll series 25 in-line idler set with 127 DIA x 5 wall x RS bearing rollers as: 25 B 1, x 45 Example: 1,050 BW x 35 x 3 roll trough roll only with 25 shaft, RS bearing and 127 x 3.8 wall shell as: 25 A 1, roll only (3.8 shell)

82 Notes on CEMA ACT - CEMA CONVERSION TABLE All roller bases have been sized to accommodate the whole range of CEMA loads. Series 20 Bases Series 25/27 Bases Series 30/32 Bases CEMA B CEMA C CEMA D Roller shaft diameter and bearing size must be sized using the selection procedure. Equivalence to CEMA must be determined by comparing actual loads and L 10 life to CEMA. Series 35 Bases CEMA E Series 45/50 Bases CEMA F Load ratings for CEMA B Idlers - Kg Belt Width (mm) Trough Angle Single Roll Return Ratings based on min. L 10 of 30,000 hrs at 500 r.p.m. Load ratings for CEMA C Idlers - Kg Belt Width (mm) Trough Angle Single Roll Return Two Roll Vee Return Ratings based on min. L 10 of 30,000 hrs at 500 r.p.m. Load ratings for CEMA D Idlers - Kg Belt Width (mm) Trough Angle Single Roll Return Two Roll Vee Return Ratings based on min. L 10 of 60,000 hrs at 500 r.p.m. Load ratings for CEMA E Idlers - Kg Belt Width (mm) Trough Angle Single Roll Return Two Roll Vee Return Ratings based on min. L 10 of 60,000 hrs at 500 r.p.m.

83 Material Characteristics Material Material Density ( ) kg/m 3 Angle of repose Angle of surcharge Material Material Density Angle of ( ) kg/m 3 repose Angle of surcharge Alumina Alumina Oxide Asbestos Ore Asbestos Shredded Ash-Coal Dry Asphalt Basalt Lump Bauxite 80 Lump Carbon Powder 80 5 Cement (P) - Clinker Cement (P) - Loose Cement (P) - Slurry Chalk Lump Charcoal Clay - Brick, Fine Clay - Dry, Loose Clinker Coal - Coking (PULV) Coal - Lignite Coal Lump Coal - Run of Mine Coke - Breeze Coke - Run of Oven Concrete -150 Lump Concrete - Wet Copper Ore - Crushed Cryolite Lump Dolomite - Lump Earth - Dry Earth - Wet Mud Feldspar Lump Flour - Wheat Flue Dust Fluorspar Lump Foundry Sand - Loose Garbage - Household 800 Glass - Batch 1680 Granite Lump Graphite - Flake Gravel - Dry Gravel - Wet Gypsum Lump Iron - Ore Iron - Pellets Kaolin - Clay Kaolin - Ground Lead - Ore Lime - Fine Limestone Lump Manganese Ore Mica Lump Nickel Paper - Pulp Paper - Pulp Pellets Phosphate - Rock Quartz Lump Rock - Excavated Salt - Coarse Salt - Fines Salt - Lump Stock Sand - Dry Sand - Lumps Dry Sand - Wet Sandstone Sawdust Soda Ash Sugar Cane Sugar Pulp - Wet Sugar - Raw Sulphar Lump Wheat Wood Chip - Pine Zinc - Ore, Crushed

84 Cross Sectional Areas (A f ) Full belts with standard edge distance (m) 20 Trough x 3 Roll Belt Width (mm) Cross Sectional Area - A f (m2) Surcharge Angle - S (degree) Trough x 3 Roll Belt Width (mm) Cross Sectional Area - A f (m2) Surcharge Angle - S (degree)

85 Cross Sectional Areas (A f ) Full belts with standard edge distance (m) 45 Trough x 3 Roll Belt Width (mm) Cross Sectional Area - A f (m2) Surcharge Angle - S (degree) Approximate Belt Weights W b (kg/m) Belt Width (mm) Operating Conditions Light Duty Average Duty Heavy Duty

86 Load Charts Series RS 89/101 DIA BW Series RS 101/127/152 DIA BW Series RS 127/152 DIA BW Series RS 127/152 DIA BW Series RS 127/152/178 DIA BW Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg)

87 Load Charts Series RS 152/178 DIA BW Series RS 152/178/219 DIA BW Series RS 152/178 DIA BW Series RS 219 DIA BW Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg) Face Length (mm) Allowable Load (kg)

88 Street Address: 2/141, West Parade Mt Lawley, WA 6050 Postal Address: PO Box 602, North Perth, WA 6906 Phone Number: (Int'l ) Web: lorbrand.com.au