Long-lasting, Economical, and Ecological Products Contributing to Water Environments and Water Quality Control.

Transcription

1 Water treatment gear reducers Long-lasting, Economical, and Ecological Products Contributing to Water Environments and Water Quality Control. Gear Reducer for Sludge Collectors (Submerged Gear Reducer)

2 Here at Hanshin Engineering Co., Ltd., we started manufacturing gear reducers more than half a century ago. We have grown into a manufacturer that provides special gear reducers for various clients not only in Japan, but also all over the world. We constantly refine our products through research to discover the solutions to issues customers have experienced. INDEX Outline 02 Product Lineup Features and Types Making a Selection 07 Tables for Model Selection N SD N MD N SDL N MDL N ED N EDL CP VWM VWML A VWML B Gear Reducer for Sludge Collectors (Submerged Gear Reducer) SB KA SB WKA We provide our clients with our water treatment gear reducer series that includes drive units for sludge collectors, thickeners and clarifiers (water-surface type). These drive units can be further classified into the center-post type and the center-shaft type. We also provide submerged gear reducers. These products are superior in service life and durability, so that simple periodic overhauls will allow them to be used for a long period of time. Since the units are centrally driven, weather factors, such as heavy rain, heavy snow, and freezing, will not cause rail-travelling wheel slippage, which may occur for circumferentially driven types. Accordingly, sludge lifting caused by the pulsing motion accompanying slippage will not occur, so the quality of treated water will be stabilized. We also produce driving units with a lifting device. If overtorque due to sludge overload should stop the units, the problem can be eliminated by raising and lowering the unit. This eliminates the need to remove sewage and sludge from the customer s tanks, leading to a reduction in operation costs. In addition, the torque meter attached to our units is a mechanical type using a worm gear, allowing stable indications unlike the instable indications of electrical types. The mechanical torque meter also prevents erroneous indications caused by electrical system trouble. Based on our many years of experience and our outstanding track record, we will provide our clients with the models and types of machines most suited to their needs. We will also provide full support to our clients with the technologies that we have developed and our thorough service system. The lineup of our water treatment gear reducers consists of the following equipment. Gear Reducer for Sludge Collectors (Submerged Gear Reducer) 01

3 Outline The lineup of our water treatment gear reducers consists of three types classified as follows. Type Without a lifting device: N SD and N MD [For low- to high-torque applications] With a lifting device: N SDL and N MDL [For low- to high-torque applications] Applications Water and sewage plants: For primary and final sedimentation tanks, sludge thickeners, and chemical clarification tanks Industrial wastewater treatment facilities: For clarifiers and thickeners Type Without a lifting device: N ED and CP VWM [For low- to intermediate-torque applications] With a lifting device: N EDL, VWML A, and VWML B [For low- to intermediate-torque applications] Applications Water and sewage plants: For primary and final sedimentation tanks, sludge thickeners, and chemical clarification tanks Industrial wastewater treatment facilities: For clarifiers and thickeners Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Type Oil-lubricated type: SB KA [For low- to intermediate-torque applications] Water-lubricated type: SB WKA [For low- to intermediate-torque applications] Applications Water and sewage plants: For primary and final sedimentation tanks, chain flight sludge collectors, and screw conveyers Sales record More than 3000 of our water treatment gear reducers have been introduced into more than 1000 water treatment facilities. These facilities are located across Japan and other countries including Taiwan, Korea, China, Malaysia, Indonesia, Saudi Arabia, Kuwait, the United Arab Emirates, Egypt, and Tunisia. Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Application examples Public facilities (water and sewage plants) Private enterprises (industrial wastewater treatment facilities for plants associated with mines, ores, stone crushing, gypsum, lime, petroleum, chemical products, iron production, paper production, pharmaceutical production, dyeing, oils, fats, and food; drainage facilities for washing earth and sand; drainage facilities for earth and sand from dam construction; wastewater treatment facilities for oil refineries; flue gas desulfurization facilities for power plants; and other equipment for industrial wastewater treatment facilities) 02

4 Product Lineup N MD N SD N SDL With an electrical lifting device N MDL With an electrical lifting device 03

5 N ED N EDL With an electrical lifting device VWML B With an electrical lifting device VWML A With a manual lifting device CP VWM Gear Reducer for SB KA Sludge Collectors (Submerged Gear Reducer) SB WKA 04

6 Features Structure Our units have a rational design structure consisting of a worm reducer incorporated into a spur internal gear in the final step. Units with a lifting device can be raised and lowered with a revolving motion. After they are installed on site, their sludge collection speed (rake circumferential speed) can be changed by replacing sprocket wheels. Supporting mechanism In center-post type units, a rolling bearing on rails built on the spur internal gear and gear case supports all external forces including large thrust loads, overturning moment, and radial loads from the gear. Rotating apparatus The main body of the unit is equipped with a manual rotating apparatus. The apparatus allows tasks such as mortar construction in the tank, clearance adjustment, and clearance measurement of the blades to be done efficiently. It is particularly effective when no power supply is available at the installation site. Lifting device The units that have a lifting device can be freely raised and lowered whether or not the units are operating. For hazard prevention, the lifting device is equipped with a worm jack with an overhung electric motor and multiple microswitches attached at the upper and lower limits of the output-shaft motion. The link between the electric motor of the lifting device and a torque meter allows easy remote control. Safety device Our units are equipped with a mechanism that protects the driving unit from overloads. The safety device allows the overload rate (torque) to be visually read on its scale plate. The activation levels of its contacts for sounding an alarm and stopping are adjustable by setting the corresponding torque values. In addition, a remote-control safety device can be attached to the units. Maintenance and inspection Center-post type units have sufficient room in and around the center of its floor plate between the spur internal gear and the worm reducer. This structure allows easy maintenance and inspection. In addition, since all lubricants can be changed in the center section, lubricant changes do not require dangerous, complicated work but can be performed with the highest level of safety. Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Waterproof shaft seal device Our waterproof shaft seal device, which uses a water seal cassette, is a complex shaft seal device combining an oil seal, an axial seal, an oil chamber, and a grease chamber. It is the perfect shaft seal device made from commercially available standard seal parts. Prevention of water intrusion and oil leak Water coming into direct contact with the shaft seal section causes the lubricant, whose specific gravity is lighter than that of water, to be pushed up and thereby tends to induce water intrusion into the inside, particularly in the upper section of the input shaft in the vertical direction. To prevent water intrusion, an air chamber (also serving as a dust shield) is installed to isolate the shaft seal section from water. This prevents water intrusion and oil leakage. In the horizontal direction, water and oil are present in the same plane, so the difference in specific gravity is not as critical a factor as it is in the vertical direction. Accordingly, the above-mentioned shaft seal will be sufficiently effective. Structure of the easily replaceable shaft-seal section The contact region of the rotating section inevitably wears away in the course of long-term use. This causes the effectiveness of the shaft-seal to decrease. The water-seal cassettetype structure allows a worn shaft-seal section to be easily replaced. Depressurization method A considerable amount of hydraulic pressure is exerted on the shaft-seal section at deep locations in water. Accordingly, our submerged gear reducers are equipped with an oil feed pipe that leads the atmosphere into them to reduce the pressure exerted on the shaft-seal section. Water lubrication Endurance tests have demonstrated that water lubrication can be used for the low-revolution, long-time operations of gear reducers for sludge collectors. Tests have also verified that water lubrication provides sufficient durability and high reliability under all operating conditions. However, lubricating water must be service water or treated water, and consideration also needs to be given to factors such as water pressure. The inside of the gear box can be cleaned by circulating the lubricating water in it at specific intervals. 05

7 Types * SB KA type units can use either a rolling bearing or a sliding bearing. 06

8 Making a Selection Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Example of calculation for motor capacity selection When N SD2-8T model is selected on the basis of sludge collection torque, maximum allowable output torque T will be N m. Output revolving speed N is calculated as follows from tank diameter D and rake circumferential speed V: V 3m/min N = = = min -1 π D π φ26m Required power P is calculated as follows from maximum allowable output torque T and output revolving speed N: T N P = = = 1.0 kw 9550 η (η: total mechanical efficiency) Accordingly, the motor capacity is selected to be 1.5 kw. * The gear ratio of the chain sprocket needs to be somewhere between approximately 1.2 and 2.0. Efficiency of each section Final-step spur internal gear section (fourth gear): 95% Worm gear reducer section (third gear): 45% Chain sprocket section (second gear): 95% Cyclo gear reducer section (first gear): 80 90% Beier Cyclo variator section (first gear): 65 70% * This is one example of the selection process. Total mechanical efficiency For Cyclo: approximately 32 36% For Beier Cyclo: approximately 25 28% 07

9 Tables for Model Selection N SD / N MD Frame number N SDL / N MDL Frame number Model Model Allowable output torque Alarm torque (80%) Allowable output torque Alarm torque (80%) N m(k g f m) N m (kgf m) Stopping torque (100%) Stopping torque (100%) Maximum revolving speed min -1 Maximum revolving speed min -1 Output Output Maximum thrust load N (kgf) Maximum thrust load N (kgf) Gear ratio Spur internal gear Gear ratio Spur internal gear Worm gear Chain size * For information of N MD, please contact us. Lifting device section Motor Stroke mm Weight kg Oil quantity N SDL2-6.3T ( ) ( ) (12500) 1/ kw N SDL2-8T ( ) 78400(8000) # /4P N SDL2-10T 78400(8000) 98000(10000) 4500 N SDL3-12.5T 98000(10000) (12500) 1.5kw 7250 # N SDL3-16T (12800) (16000) (15000) 1/7.687 /4P 7500 N MDL3-20T (16000) (20000) # N MDL3-25T (20000) (25000) kw N MDL5-32T (25600) (32000) /45 #100 /4P (20000) 1/ N MDL5-40T (32000) (40000) N MDL5-50T (40000) (50000) N MDL8-60T (48000) (60000) (30000) 1/7.667 # kw N MDL8-80T (64000) (80000) /4P 286 N MDL8-100T (80000) (100000) N MDL10-125T (100000) (125000) (35000) 1/7.684 # kw 495 N MDL10-150T (120000) (150000) /4P N MDL10-175T (140000) (175000) Worm gear Chain size Maximum load for corridor installation kg Weight kg Oil quantity N SD05-1.6T (1280) (1600) /43 1, N SD05-2T (1600) (2000) /7.133 #50 1,500 (7000) N SD05-2.5T (2000) (2500) 1, N SD1-3.2T (2560) (3200) , N SD1-4T (3200) (4000) /7.667 #60 2,000 (10000) N SD1-5T (4000) (5000) 2, N SD2-6.3T (5040) (6300) , N SD2-8T (6400) (8000) /7.667 #80 3,000 (12500) 1/45 N SD2-10T (8000) (10000) 3, N SD3-12.5T (10000) (12500) 4, N SD3-16T (12800) (16000) / ,500 (15000) 4, N SD3-18T (14400) (18000) #100 N SD5-20T (16000) (20000) / ,000 6, N SD5-25T (20000) (25000) (20000) Main body l l Lifting device section 08

10 Tables for Model Selection N ED Frame number Model Allowable output shaft torque Alarm torque (80%) N m (kgf m) Stopping torque (100%) Maximum revolving speed min -1 Output Maximum thrust load N (kgf) Spur gear Gear ratio Worm gear Chain size Weight kg Oil quantity N ED05-1.6T (1280) (1600) N ED05-2T (1600) (2000) / /43 #50 N ED05-2.5T (2000) (2500) N ED1-3.2T (2560) (3200) (5000) N ED1-4T (3200) (4000) #60 N ED1-5T (4000) (5000) /7.667 N ED2-6.3T (5040) (6300) N ED2-8T (6400) (8000) /45 (7000) #80 N ED2-10T (8000) (10000) N ED3-12.5T (10000) (12500) N ED3-16T (12800) (16000) /7.688 (10000) # N ED3-18T (14400) (18000) l N EDL Frame number Model Allowable output shaft torque Alarm torque (80%) N m (kgf m) Stopping torque (100%) Maximum revolving speed min -1 Output Maximum thrust load N (kgf) Gear ratio Spur gear Worm gear Chain size Lifting device section N EDL05-1.6T (1280) (1600) N EDL05-2T (1600) (2000) / /43 #50 N EDL05-2.5T (2000) (2500) KW N EDL1-3.2T (2560) (3200) (5000) /6P N EDL1-4T (3200) (4000) #60 N EDL1-5T (4000) (5000) / N EDL2-6.3T (5040) (6300) N EDL2-8T (6400) (8000) /45 (7000) #80 N EDL2-10T (8000) (10000) 1.5KW N EDL3-12.5T (10000) (12500) /6P N EDL3-16T (12800) (16000) /7.688 (10000) # N EDL3-18T (14400) (18000) Motor Stroke mm Weight kg Oil quantity Main body l Lifting device section CP V WM Model Allowable output shaft torque Alarm torque (80%) N m (kgf m) Stopping torque (100%) Equivalent allowable bending moment on the installation surface N m (kgf m) Maximum revolving speed min -1 Output Maximum thrust load N (kgf) Gear ratio Worm gear CP V WM-3N 3254 (332) 4067 (415) 833 (85) (1700) 1/ CP V WM-4N 4351 (444) 5439 (555) 1401 (143) (2000) CP V WM-5N 5802 (592) 7252 (740) 2234 (228) (2300) CP V WM-7N 7840 (800) 9800 (1000) 3136 (320) (2600) CP V WM-10N (1088) (1360) 4312 (440) (3000) CP V WM-13N (1488) (1860) 8820 (900) (3500) 1/ CP V WM-18N (2056) (2570) (1050) (4000) CP V WM-25N (2860) (3575) (1740) (5000) CP V WM-35N (3960) (4950) (1750) (6500) CP V WM-48N (5504) (6880) (2510) (8500) Weight kg Oil quantity l 09

11 Tables for Model Selection VWML A / VWML B Model Allowable output shaft torque Alarm torque (80%) N m (kgf m) Lubricating Oil In order to operate and control equipment normally, it is essential to make sure the lubrication stays in good condition. Lubricating oil needs to be added while the unit is shutdown so that the oil level will be within the range of the fill lines on the oil level gauge. The fill lines on the oil level gauge indicate the oil level when the unit is shutdown. Too much oil will cause problems, such as efficiency loss due to stirring, temperature increases, and oil leaks. On the other hand, too little lubricating oil leads to insufficient lubrication and may cause breakdowns, such as seizure, or accidents. Recommended lubricating oils Stopping torque (100%) Equivalent allowable bending moment on the installation surface N m (kgf m) Maximum revolving speed min -1 Output Maximum thrust load N (kgf) Gear ratio Worm gear Lifting device section V WM L A - 4 N V WM L A -5N 4351 (444) 5802 (592) 5439 (555) 7252 (740) 1401 (143) 2234 (228) (2000) V WM L A -7N 7840 (800) 9800 (1000) 3136 (320) V WM L A -10 N (1088) (1360) 4312 (440) V WM L A -13N (1488) (1860) 8820 (900) V WM L A -18 N (2056) (2570) (1050) (3000) V WM L A -2 5N (2860) (3575) (1740) V WM L A -35N (3960) (4950) (1750) V WM L A N (5504) (6880) (2510) (5000) / V WM L B - 4 N 4351 (444) 5439 (555) 1401 (143) V WM L B -5N 5802 (592) 7252 (740) 2234 (228) (2000) KW V WM L B -7N 7840 (800) 9800 (1000) 3136 (320) /4P V WM L B -10 N (1088) (1360) 4312 (440) (3000) V WM L B -13N (1488) (1860) 8820 (900) V WM L B -18 N (2056) (2570) (1050) KW V WM L B -2 5N (2860) (3575) (1740) (5000) /6P V WM L B -35N (3960) (4950) (1750) V WM L B N (5504) (6880) (2510) KW (7000) /6P Drive unit for sludge collectors, thickeners and clarifiers Motor Stroke mm Weight kg Oil quantity l Main body Lifting device section Type Oil Grease Brand Idemitsu Kosan Exxon Mobil Cosmo Oil Showa Shell Sekiyu JX Nippon Oil & Energy Daphne Super Gear Oil 460 Mobilgear 600 XP 460 Cosmo Gear SE 460 Shell Omala S2 G 460 Daphne Eponex Grease Mobilux Cosmo Grease Dynamax Shell Alvania NLGI No.2 EP 2 EP No.2 EP Grease 2 Bonnoc M 460 Epnoc Grease AP (N) 2 Grade JIS K 2219 Class-2 industrial gear oil ISO VG 460 JIS K 2220 Class-1 No. 2 lubricating grease for high loads Gear reducer for sludge collectors (submerged gear reducer) Type Oil Brand Idemitsu Kosan Exxon Mobil Cosmo Oil Showa Shell Sekiyu JX Nippon Oil & Energy Daphne Super Gear Oil Mobilgear Cosmo Gear Shell Omala Bonnoc XP 220 SE 220 S2 G 220 M 220 Grade JIS K 2219 Class-2 industrial gear oil ISO VG

12 N SD/N MD N SD/N MD Dimensional drawing N SD Gear Reducer for Sludge Collectors (Submerged Gear Reducer) N MD 11

13 Dimensional table N SD Frame number Frame number Model AA AB AC AD AE AF AG AH AI BA BB BC BD BE BF N SD05-1.6T N SD05-2T Tetrahedron N SD05-2.5T N SD1-3.2T N SD1-4T Tetrahedron N SD1-5T N SD2-6.3T N SD2-8T Tetrahedron N SD2-10T N SD3-12.5T N SD3-16T Tetrahedron N SD3-18T 685 N SD5-20T Octahedron N SD5-25T 2400 Model BG BH BI BJ CA CB CC CD CE CF CG DA DB DC N SD05-1.6T N SD05-2T drilling N SD05-2.5T N SD1-3.2T N SD1-4T drilling N SD1-5T 10 N SD2-6.3T N SD2-8T drilling N SD2-10T N SD3-12.5T N SD3-16T drilling N SD3-18T 450 N SD5-20T drilling N SD5-25T 4 4 M20 tap 4 4 M24 tap 4 4 M30 tap 4 4 M36 tap 8 4 M30 tap 3 M16 tap 3 M20 tap Unit: mm N SD/N MD Gear Reducer for Sludge Collectors (Submerged Gear Reducer) * For information of N MD, please contact us. 12

14 N SDL/N MDL <With an electrical <With an electrical lifting device> lifting device> Dimensional drawing N SDL2-6.3T model, N SDL2-8T model, and N SDL2-10T model N SDL3-12.5T model and N SDL3-16T model N SDL/N MDL Gear Reducer for Sludge Collectors (Submerged Gear Reducer) N MDL3-20T model and N MDL3-25T model (DA center cage installation plane: 4 locations; 8 locations for N MDL5-32T or higher class models) N MDL5-32T model and higher class models 13

15 Dimensional table Frame number Frame number Model AA AB AC AD AE AF BA BB BC BD BE BF CA CB CC N SDL2-6.3T N SDL2-8T N SDL2-10T N SDL3-12.5T N SDL3-16T N MDL3-20T N MDL3-25T N MDL5-32T N MDL5-40T N MDL5-50T N MDL8-60T N MDL8-80T N MDL8-100T N MDL10-125T N MDL10-150T N MDL10-175T Model CD CE CF CG CH CI DA DB P.C.D N-Z M n-w m ØD N SDL2-6.3T 785 N SDL2-8T N SDL2-10T 840 N SDL3-12.5T 845 N SDL3-16T 970 N MDL3-20T 845 N MDL3-25T 970 N MDL5-32T 1040 N MDL5-40T N MDL5-50T 1170 N MDL8-60T N MDL8-80T 1250 N MDL8-100T N MDL10-125T 1400 N MDL10-150T N MDL10-175T M M M M M M M Unit: mm Stroke S N SDL/N MDL Gear Reducer for Sludge Collectors (Submerged Gear Reducer) 14

16 N ED/N EDL <With an electrical lifting device> Dimensional drawing N ED Bolt position in installation mount section Details of output shaft end Gear Reducer for Sludge Collectors (Submerged Gear Reducer) N ED/N EDL N EDL Bolt position in installation mount section Details of output shaft end 15

17 Dimensional table N ED Frame number * High-tension bolts (10.9T) need to be used to secure the output-shaft end plate. N EDL Dimensional drawing of rigid coupling Model AA AB AC AD AE AF AG AH BA BB BC BD CA CB CC CD CE CF CG P M N Dimensional table of rigid coupling Keyway Output shaft N ED05-1.6T R N ED05-2T M N ED05-2.5T R N ED1-3.2T N ED1-4T R1.0 3 M N ED1-5T N ED2-6.3T R1.0 3 M N ED2-8T N ED2-10T R1.0 4 M24 40 N ED3-12.5T N ED3-16T R1.6 4 M30 40 N ED3-18T Frame number Model AA AB AC AD AE AF AG AH BA BB BC BD CA CB CC CD CE CF CG CH CI CJ CK DA P M N N EDL05-1.6T N EDL05-2T N EDL05-2.5T R1.0 N EDL1-3.2T N EDL1-4T R1.0 N EDL1-5T N EDL2-6.3T R1.0 N EDL2-8T N EDL2-10T N EDL3-12.5T R1.0 N EDL3-16T N EDL3-18T R1.6 Keyway Shaft end tap Output shaft Shaft end tap R0.6 3 M M M M M30 40 T T Unit: mm Installation mount D Installation mount D Unit: mm Stroke S 350 Unit: mm Model Ød₁ Ød₂ Ød₃ Ød₄ p.c.d o.d H H₁ H₂ H₃ L₁ L₂ N Z Y N ED05-1.6T N ED05-2T N ED05-2.5T N ED1-3.2T N ED1-4T N ED1-5T N ED2-6.3T N ED2-8T N ED2-10T N ED3-12.5T N ED3-16T N ED3-18T N ED/N EDL Gear Reducer for Sludge Collectors (Submerged Gear Reducer) 16

18 CP VWM Dimensional drawing Cross section-a Bolt position in installation mount section Details of output shaft end CP VWM Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Dimensional table Model AA AB AC AD AE AF AG BA BB CA CB CC CD CE Z P Q M N * High-tension bolts (10.9T) need to be used to secure the output-shaft end plate. Bolts with an appropriate size (Z dimension) need to be used for the installation mount. Keyway Output shaft Shaft end tap CP V WM-3N M R1.0 1 M20 33 CP V WM-4N CP V WM-5N R M20 2 M CP V WM-7N R1.0 CP V WM-10N M24 CP V WM-13N M R1.6 CP V WM-18N M30 CP V WM-25N R M20 33 CP V WM-35N R M36 CP V WM-48N R1.6 3 M T Unit: mm Installation mount D 17

19 VWML A/VWML B <With a manual <With an electrical lifting device> lifting device> Dimensional drawing of common base Cross section-a Dimensional table of common base Dimensional drawing of rigid coupling Dimensional table of rigid coupling Model AA AB AC AD AE AF AG AH AI AJ BA BB BC BD BE BF Z CA CB CC CD CE CF CG CH Y VWML A/B-4N M VWML A/B-5N M VWML A/B-7N VWML A/B-10N M VWML A/B-13N VWML A/B-18N M VWML A/B-25N VWML A/B-35N M VWML A/B-48N Unit: mm 25 Unit: mm Model Ød1 Ød2 Ød3 Ød4 p.c.d o.d H H1 H2 H3 L1 L2 N Z Y VWM-3N VWM-4N VWM-5N VWM-7N VWM-10N VWM-13N VWM-18N VWM-25N VWM-35N VWM-48N VWML A / B Gear Reducer for Sludge Collectors (Submerged Gear Reducer) 18

20 VWML A <With a manual lifting device> Dimensional drawing Cross section-a Bolt position in installation mount section Details of output shaft end VWML A Gear Reducer for Sludge Collectors (Submerged Gear Reducer) Dimensional table Model AA AB AC AD AE AF BA BB BC CA CB CC CD CE CF Z P Q M N V WM L A - 4 N * High-tension bolts (10.9T) need to be used to secure the output-shaft end plate. Bolts with an appropriate size (Z dimension) need to be used for the installation mount. Keyway Output shaft Shaft end tap V WM L A -5N M R M V WM L A -7N R1.0 V WM L A -10 N M V WM L A -13N M R T Installation mount M R1.0 1 M V WM L A -18 N M30 V WM L A -2 5N R M20 33 V WM L A -35N R M36 V WM L A N R1.6 3 M D Unit: mm Stroke S

21 VWML B <With an electrical lifting device> Dimensional drawing Cross section-a Bolt position in installation mount section Details of output shaft end VWML B Dimensional table Model AA AB AC AD AE AF AG AH BA BB BC BD CA CB CC CD CE CF Z P Q M N V WM L B - 4 N * High-tension bolts (10.9T) need to be used to secure the output-shaft end plate. Bolts with an appropriate size (Z dimension) need to be used for the installation mount. Keyway Output shaft Shaft end tap V WM L B -5N R M20 2 M V WM L B -7N R1.0 V WM L B -10 N M24 V WM L B -13N M R1.6 V WM L B -18 N M30 V WM L B -2 5N R M20 33 V WM L B -35N R M36 V WM L B N R1.6 3 M T Installation mount M R1.0 1 M D Unit: mm Stroke S 350 Gear Reducer for Sludge Collectors (Submerged Gear Reducer) 20

22 Gear Reducer for Sludge Collectors (Submerged Gear Reducer) SB KA <Rolling-bearing/ Oil-lubricated type> Dimensional drawing Gear Reducer for Sludge Collectors (Submerged Gear Reducer) SB KA Model selection/dimensional table Unit: mm Model Output shaft allowance Torque N m (kgf m) Overhung load N (kgf) Input maximum revolving speed min -1 Gear ratio AA AB AC AD AE AF BA BB CA CB CC CD Z Input shaft Output shaft P Q Keyway M N Keyway Weight kg Oil quantity l SB KA (390) (1110) 1/ R R SB KA (515) (1430) 1/ R SB KA (710) (1840) 1/ R R SB KA (920) (2340) 1/ R1.6 SB KA (1250) (2855) 1/ R SB KA (1750) (3790) R R SB KA (2310) (4110) 1/ R SB KA (3140) (5820) R R * Output-shaft overhung loads shown in the table have been determined on the premise that they are exerted on the center of the shaft. For information on input-side driving units, please refer to information materials about the VWM series. 21

23 SB KA/SB WKA <Sliding-bearing/ <Sliding-bearing/ Oil-lubricated type> Water-lubricated type> Dimensional drawing Model selection/dimensional table Model Output shaft allowance Torque N m (kgf m) Overhung load N (kgf) Input maximum revolving speed min 1 Gear ratio AA AB AC AD AE AF AG BA BB BC CA CB CC CD Z * Output-shaft overhung loads shown in the table have been determined on the premise that they are exerted on the center of the shaft. For information of input-side driving units, please refer to information materials about the VWM series. Input shaft Output shaft P Q Keyway M N Keyway SB WKA (410) (1430) 1/ R R SB WKA (560) (1840) 1/ R R1.0 SB WKA (730) (2340) R1.6 SB WKA (1000) (2855) 1/ R SB WKA (1350) (3790) R R Unit: mm Weight kg Gear Reducer for Sludge Collectors (Submerged Gear Reducer) SB KA/SB WKA 22

24 For further information about the equipment of water treatment plants, please visit our website. Head Office/ Shikanjima, Konohana-ku, Osaka , Japan TEL FAX Tokyo Branch Office/4th Floor, Shibakaga Bldg., Shibakoen, Minato-ku, Tokyo , Japan TEL FAX Hikami Factory/1383 Shingo, Hikami-cho, Tanba-shi, Hyogo , Japan TEL FAX *The content of this pamphlet is subject to change without notice for its improvement. Cat. No T