Dry & Indent Bearings

Transcription

1 Dry & Indent Bearings... 1

2 Dry & Indent Bearings Applications for LB/LX/LI/LD Series 5 Dry Bearings (LB Series) Standard Bushings LBB Standard Flanged Bushings LBF Standard Thrust Washers LBW Standard Plates LBP Wrapped Bronze (Self-Lube Bearings) LB1B Stainless Steel (Self-Lube Bearings) LB2B Gear Pump Bearings LB3B Reciprocating Motion Bearings LB4B Anti-Corrosion Stainless Steel Bearings LB7B 16 Boundary Lubricating Bearings (LX Series) Standard Bushings LXB Standard Thrust Washers LXW Standard Plates LXP Indent Bronze Bearings (LI Series) Standard Bushings LIB Standard Flanged Bushings LIF Standard Thrust Washers LIW 25 Bimetal Bearings (LD Series) Standard Bushings LDB Standard Flanged Bushings LDF Standard Thrust Washers LDW 2

3 ... Applications for LB/LX/LI/LD Series 3

4 Applications for LB/LX/LI/LD Series... 4

5 ... Dry Bearings (LB Series) Free from Lubrication LuBo LB Series... In the 196's Glacier of UK invented the steel-backed, sintered-bronze PTFE & lead lined bearing-du. Like DU bearings, LuBo's LB bearings are also used in dry or semi-lubrication environments. It can substitute for conventional bearing where it is desired to save space, and to provide superior shock and impact load resistance. Features - Maintains a low coefficient of friction( :.4~.2) and usable without lubrication at high load, low speed operations with excellent wear resistance. - Wide applicable temperature range from -319 F to 518 F. (-195 C to +27 C) - Satisfactory with rotating, oscillating and axial sliding motions with excellent dimensional stability. - Excellent resistance against almost any chemical attack. - Thin wall thickness and lightweight construction enable a compact design of the product. - Similar static and dynamic friction with elimination of stick-slip under very low sliding speed. - Various standards are available for quick delivery. (inner Dia. : 3~ 3) Structure of LB Series PTFE-lead overlay... For exceptionally low friction T.3.1.2~.4 Porous bronze inner-structure... For optimum heat dissipation, plus a reservoir of PTEE-lead (Enlargement Section) Steel backing For high load carrying capacity and structural rigidity Electro-plating copper or tin, chromium, nickel 5

6 Physical & Mechanical Property of LB Series Dry Bearings (LB Series)... Specific Load (MPa) Specific Velocity (m/s) PV-Value Limit (MPa m/s) (Low speed) 2. (oilling) - Temperature Range F ( C) -319 ~ 518 (-195 ~ 27) Wear Amount Limit (mm) Coefficient of Linear Expansion (per C) Friction Characteristic Curve 4 3 Life(Hr) PV value(mpa m/s) Press Fitting for LBB Bushing LBB bushing Houshing F ~25 Press fit force Arbor diameter =housing inner diameter -(.2~.4mm) Pilot diameter =bush inner diameter -(.2~.3mm) Chamfering at housing hole.8mm 3 or less 1.2mm More than 3 and 5 or less 2.6mm More than 5 4 T L C F = (kgf) D T : Thickness bushing(mm) L : Length bushing(mm) D : Max. Outer Dia. bushing(mm) C : Average interference(mm) 6

7 ... Dry Bearings (LB Series) The Wall Thickness Tolerance of LBB, LBF over Inner Diameter to Wall Thickness Thickness Tolerance The Tolerance for Outer Diameter of LBB, LBF, LXB Outer Diameter Tolerance of Outer Dia. Outer Diameter Tolerance of Outer Dia. 6 7 ~ ~ 14 ~ ~ ~ ~ ~ ~ ~ 95 ~ 1 5 ~ ~ ~ 5 2 ~ ~

8 LB Bearings are used in variety of industries Dry Bearings (LB Series)... Transportation Automobiles : Suspension, Steering, Break, Clutch, Transmission, etc. Railroad car : Side thrust absorber, Automatic doors, etc. Ships : Steering linkages, Hatch cover, Pulley block, etc. Aircraft : Control linkage, Shock absorber, Actuators Valve, Winch, etc. Other : Conveyors, Automotive Assembly line, Coating line, Ski lift, Packing lot, Stage sets, etc. Electric Appliances Recorders(Paper feeder), Copiers, Computer MT, VCR Capstan bearing, Movie projectors, Zoom lens controller, Satellite Antenna, Flow meter, Sorting-machine, Solenoid, Switch, Revolving dryers, Laundry press, Door caster, Kneaders, Washing machine, Coil winder, Limit switch, etc. Hydraulic Systems Rotary actuator, Gear pump, Cylinders, shock absorber, Lucas Hydraulic pump(valve mechanism), Motor cycles Boiler water pump Nitrogen pump, Gas meter, etc Printing, Food processing Offset printer, Gravure printer, Mail printer, Automatic ticket Bender, Automatic book binder, Bottle machine, Bottle washer, Automatic bag Maker, Dairy processors, Cigarette rollers, Meat choppers, Skinning machine, Mixer, etc. Textile Industry Spinning frame, Yarn twister, Bobinoirs, Jetlooms, Sheet rollers, Winders, Pot sizing machines, Textile machines, etc. 8

9 ... Dry Bearings (LB Series) Standard Bushings LBB L -.3 Slit d D A 45 _+ 5 f2 _+ 8.3 f1 DETAIL A (Unit : mm) Inner Shaft Code No Dia. Dia. d D L f1 f2 LBB LBB LBB LBB 36 6 LBB LBB LBB 48 8 LBB 54 4 LBB LBB LBB 58 8 LBB 51 1 LBB 65 5 LBB LBB LBB 68 8 LBB 61 1 LBB LBB LBB LBB 7 LBB 85 5 LBB LBB LBB LBB 81 1 LBB 8 9 LBB LBB 16 6 LBB 17 7 LBB 18 8 LBB LBB 1 LBB 1 LBB 1 Inner Dia Code No Shaft Dia. d D L f1 f2 LBB 16 6 LBB 18 8 LBB LBB -.43 LBB LBB LBB LBB LBB 13 LBB LBB LBB LBB 14 LBB LBB 8 8 LBB 1 1 LBB LBB LBB LBB LBB LBB LBB LBB 16 LBB LBB LBB LBB LBB 18 LBB LBB LBB LBB LBB LBB Inner Shaft Code No Dia. Dia. d D L f1 f2 LBB 1 1 LBB LBB LBB -.46 LBB LBB 3 3 LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB 28 LBB LBB LBB LBB LBB

10 Standard Bushings Dry Bearings (LB Series)... Inner Dia Code Shaft No Dia. d D L f1 f2 LBB 3 LBB 3 LBB 3 LBB LBB 33 3 LBB LBB 34 4 LBB 31 LBB LBB LBB 32 LBB LBB LBB LBB 35 LBB 35 LBB LBB LBB LBB LBB LBB 38 LBB LBB LBB LBB LBB LBB 4 LBB 4 LBB 4 LBB LBB LBB LBB 44 4 LBB 45 5 LBB 42 LBB LBB LBB 44 LBB LBB LBB 45 LBB LBB LBB LBB LBB Inner Dia Code No Shaft Dia. d D L f1 f2 LBB 5 LBB LBB 53 3 LBB LBB 54 4 LBB 55 5 LBB 56 6 LBB LBB LBB LBB LBB LBB LBB 63 3 LBB LBB LBB 66 6 LBB 63 3 LBB LBB LBB 66 6 LBB 73 3 LBB LBB LBB LBB 76 6 LBB 78 8 LBB LBB LBB LBB LBB LBB LBB 84 4 LBB LBB LBB 88 8 LBB LBB LBB LBB LBB 94 4 LBB LBB 99 9 LBB LBB LBB (Unit : mm) Inner Shaft Code No Dia. Dia. d D L f1 f2 LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB 5 1 LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB 5 5 LBB LBB 1 1 LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB LBB NOTE Bearings in other sizes not listed may also be supplied according to special order. -Tolerance for housing bore in installation: H7 Code No. Example) LBB 131 1

11 ... Dry Bearings (LB Series) Standard Flanged Bushings LBF b1 R1 L _+ 5 f2 +_ d3 d1 d2 Slit _+ 8 =>.3 f1 A DETAIL A Inner Dia Code No Shaft d2 d3 L b1 Dia. d f1 f2 LBF LBF LBF LBF LBF 67-7 LBF LBF LBF LBF LBF LBF LBF LBF LBF 1- LBF 1-1 LBF 16-6 LBF LBF LBF - LBF - LBF LBF LBF LBF LBF LBF LBF -23 LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF -31 LBF LBF LBF LBF LBF LBF LBF LBF Code No. Example) LBF 1- Inner Code No Shaft d2 d3 L b1 Dia. Dia. d f1 f2 LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF 28-4 LBF LBF 3-42 LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF 4-54 LBF 4-54 LBF LBF LBF LBF LBF 45-6 LBF LBF LBF LBF LBF LBF LBF LBF LBF LBF NOTE -Bearings in other sizes not listed may also be supplied according to special order. -LBF flanged bush bearing should be installed with housing bore H7. 11

12 J Standard Thrust Washers Dry Bearings (LB Series)... LBW T a t d D D1 Shaft Size of washer Size for installation Code No Dia. d D -.25 T -.8 J. a +.1 t D1 6 LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW LBW NOTE A dowel or countersink screw should be used to fix washer on the base Code No. Example) LBW 24 LBP Standard Plates Code No Length Width Thickness(T) LBP LBP LBP LBP LBP Code No. Example) LBP 1

13 ... Wrapped Bronze (Self-Lube Bearings) - LB1B It's based on a dense bronze alloy with sintered bronze layer as its interlayer, with the a compound of PTFE and Pb on its surface. <Applications> -Cement grout pumps -Spiral conveyers for cement Product Code : LB1B(Standard Bushings) Dimension and tolerance of this product are same as LBB products. (Refer to pages 9 ~ 1) Property of LB1B Load Capacity (MPa) Allowable Velocity (m/s) PV-Value Limit (MPa m/s) Temperature ( C) Coefficient of Friction ( ) Remark (Low Speed) 2. (Oil) +3.4 ~.18 with Pb Howtoorder Product Code - I.D Example) LB1B - L Stainless Steel (Self-Lube Bearings) - LB2B The material of this products is based on stainless steel plate with a sintered porous bronze layer as its interlayer which is coated with the compound of PTFE on its surface. <Applications> -Food related machines -Pharmaceutical machines -Printing and dyeing machines Product Code : LB2B (Standard Bushings) Dimension and tolerance of this product are same as LBB products. (Refer to pages 9 ~ 1) Property of LB2B Load Capacity (MPa) Allowable Velocity (m/s) PV-Value Limit (MPa m/s) Temperature ( C) Coefficient of Friction ( ) Remark 4 14 (Low Speed) 1. (Dry) ~. without Pb Product Code - I.D Example) LB2B - L 13

14 Gear Pump Bearings - LB3B... It's a new type of LB which is composed of a specially designed surface layer of PTFE. It is applicable for a high PV value of gear pump bearing. <Applications> -Gear Pumps -Ram Pumps -Vane Pumps Property of LB3B Product Code : LB3B (Standard Bushings) Dimension and tolerance of this product are same as LBB products. (Refer to pages 9 ~ 1) Load Capacity (MPa) Allowable Velocity (m/s) PV-Value Limit (MPa m/s) Temperature ( C) Coefficient of Friction ( ) Remark (Oil) ~.18 PTFE Product Code - I.D Example) LB3B L Reciprocating Motion Bearings - LB4B It's a new kind of LB which is composed of a specially designed material according to its reciprocating motion condition. <Applications> -Shock absorber of automobiles and motorcycles -Hydraulic Cylinder Product Code : LB4B(Standard Bushings) Dimension and tolerance of this product are same as LBB products. (Refer to pages 9 ~ 1) Property of LB4B Load Capacity (MPa) Allowable Velocity (m/s) PV-Value Limit (MPa m/s) Temperature ( C) Coefficient of Friction ( ) Remark ~. PTFE Product Code - I.D Example) LB4B L 14

15 ... Anti-Corrosion Stainless Steel Bearings - LB7B It's based on stainless steel plate which is anti-corrosive. It is coated with PTFE on the surface so it is resistant to wear, acid, alkali and seawater. <Applications> -Flow Meters -Pumps and valves of chemical equipments. Product Code : LB7B (Standard Bushings) Dimension and tolerance of this product are same as LBB products. (Refer to pages 9 ~ 1) Property of LB7B Load Capacity (MPa) Allowable Velocity (m/s) PV-Value Limit (MPa m/s) Temperature ( C) Coefficient of Friction ( ) ~. Product Code - I.D Example) LB7B - L

16 Boundary Lubricating Bearings (LX Series)... LX Series is designed to fill the gap between dry and lubricated type bearings. It ensures smooth operation over an extended period of time. Once lubricated upon installation, only minimum lubrication is needed from then on at regular intervals. LX Series is widely used in auto steering joint, machine tools, engineering machineries, and etc. Features -Boundary lubricating material enables LX series to keep excellent performance when lacking in lubrication oil. -With good mechanical strength, it can stand heavy dynamic and static load. -Owing to its thick and hard surface of friction, it has the advantage of low wear. -It doesn't absorb water or swelled up in moisture as other plastic materials do. -It is suitable for conditions in which oil film is difficult to be formed, such as in oscillating movements in heavy load and low speed condition, frequent stop and start or start under load. -LX series is relatively inexpensive. -Various standards are available for quick delivery (Inner Dia.: 1 ~ 3) Structure of LX Series T.2~.35.3~.5 Acetal Resin Polymer Porous bronze inner-structure... For optimum heat dissipation, plus a reservoir of PTEE-lead (Enlargement Section) Steel backing For high load carrying capacity and structural rigidity Electro-plating copper Physical & Mechanical Property of LX Series Specific Load (MPa) Specific Velocity (m/s) PV-Value Limit (MPa.m/s) Temperature Range F ( C) Wear Amount Limit (mm) Coefficient of Linear Expansion (per C) 5 14 (Low speed) ~ 266 (-3 ~ 13)

17 ... Boundary Lubricating Bearings (LX Series) Standard Bushings LXB L H -.4 T d A D 1 Slit _ 5 f2.3 f1 DETAIL A Inner Dia Code No Shaft Dia. d D L f 1 f 2 H LXB 18 8 LXB LXB 1 -. LXB 1 LXB 1 1 LXB LXB LXB LXB LXB 13 LXB LXB LXB 14 LXB 14 LXB LXB LXB LXB LXB 16 LXB LXB 16 LXB LXB 17 LXB 17 LXB LXB LXB 18 LXB LXB 18 LXB LXB LXB 23 LXB LXB 3 3 LXB LXB LXB LXB Inner Dia Code No Shaft Dia. d D L f 1 f 2 H LXB 24 LXB LXB LXB LXB LXB 25 LXB LXB LXB LXB LXB 26 3 LXB LXB LXB LXB LXB 3 LXB LXB 34 4 LXB 32 LXB LXB LXB 35 LXB LXB LXB LXB LXB 4 LXB LXB LXB 45 5 LXB LXB LXB 44 LXB LXB LXB 45 LXB LXB

18 Boundary Lubricating Bearings (LX Series) Standard Bushings... Inner Dia Shaft Code No Dia. d D L f 1 f 2 H LXB LXB LXB LXB LXB LXB 66 6 LXB LXB LXB LXB 78 8 LXB LXB LXB LXB 88 8 LXB LXB LXB LXB 99 9 LXB LXB LXB 16 6 LXB LXB 11 1 LXB LXB 11 1 LXB LXB LXB LXB 11 1 Inner Dia. Code No Shaft Dia. d D L f 1 f 2 H 1 LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB LXB NOTE -Bearings in other sizes not listed may also be supplied according to special order. -LXB Bearing should be installed with shaft diameter tolerance h7 and housing bore tolerance H7. Well Thickness Tolerance Inner Dia. over to Wall Thinkness Tolerance(T) Code No. Example) LXB 16 18

19 J... Boundary Lubricating Bearings (LX Series) Standard Thrust Washers LXW T a t d D D1 Shaft Dia. Code No Size of washer LXW 1 24 NOTE A dowel or countersink screw should be used to fix washer on the base. Size for installation d D T J a t D1 LXW LXW LXW LXW LXW LXW LXW LXW LXW LXW LXW LXW LXW LXW Code No. Example) LXW Standard Plate Code No. Length Width Thickness(T) LXP LXP LXP LXP Howtoorder Code No. Example) LXP 19

20 Indent Bronze Bearings (LI Series)... LI series bearing is produced with a specially-compounded material of high density bronze, which has the advantages of high-load capacity, low wear and fatigue resistance. It has a wide range of application in the fields of agricultural and engineering machinery. Alloy Compositions Cu Sn P 93.4% 6.5%.1% Mechanical & Physical Properties Tensile Strength Yield Strength Hardness HB Linear Expansion Thermal Conductivity Allowable Pressure (N/cm ) Low speed 2m/s over 2 45N/mm 2 25N/mm2 1~ / C 6w/m.k, 3,5 Type of Lubricating Surface (Indent Type) Lozenge Indents Spherical Indents _ _.2 (Grease Lubricating Type) (Oil Lubricating Type)

21 ... Indent Bronze Bearings (LI Series) Bushing Size & Tolerance The tolerance(inner Dia) of LI standard bushing and flanged bushing is H9(pressed in H7 standard housing). In addition, there are various types of washer and bearing in both metric and inch size per customer drawings. However, the outer diameter should be within 35 mm, wall thickness within 5 mm, and length within mm. Recommended Installation Sizes - Suitable Housing : H7 - Mating Shaft : f7 and e7 (HRC 5 Over) Running Clearance Kinds of Lubricant Load Motion Grease Oil High load Low load Low Speed Oscillating.1mm over Small Small Large Small Small Kinds of Indent Bushing Type -Indent Type (L & S) -Perforate Type Indent Type Lozenge Indent Spherical Indent (S) Perforate (L-Type) (S-Type) (P-Type) 21

22 Indent Bronze Bearings (LI Series) Standard Bushings... LIB b Slit d1 d2 Dimensions Product Length b (Tolerance b.25) mm (mm) Code d1 d LIB Product Code LIB Dimensions (mm) Length b (Tolerance b.25) mm d1 d Product Code - d1 b - Indent type Example) LIB L 22

23 ... Indent Bronze Bearings (LI Series) Standard Flanged Bushings LIF b R1 +_.5 d3 d1 d2 Slit Product Code LIF Dimensions (mm) Length b(tolerance b.25)mm d1 d2 d / / /5 4 44/ /6 5 55/ /7 6 65/ /8 7 75/ /9 8 85/1 9 95/11 1 /1 11 1/13 Product Code LIF Dimensions (mm) Length b(tolerance b.25)mm d1 d2 d / / /165 5/ / / / /225 5/ / / / / /34 Product Code - d1 b d3 - Indent type Example) LIF L Refer to page 21 23

24 J Indent Bronze Bearings (LI Series) Standard Thrust Washers... LIW T a d D Product Dimension (Tolerance) shaft Dia Code d D -.25 T J. a LIW Product Code LIW shaft Dia. Dimension (Tolerance) +.25 d D -.25 T -.5 J. a Product Code - Shaft Dia - Indent type Example) LIW L Refer to page 21 24

25 ... Bimetal Bearings (LD Series) Double Layer Metal Bearings LD bimetal bearing is manufactured with a the composite material of high quality, low-carbon steel and sintered lead-bronze alloy. Features - High-speed proof - High-load capacity - High strength and low friction - Lubricating bearings (oil) Applications - Gasoline engines - Diesel engines - Engineering machinery - Lifters - Air conditions - Auto-gear boxes - Transmission cases - Leaf spring heavy-duty vehicles and stabilizers. etc Alloy Compositions Symbol Alloy symbol DIN-ISO SAE Cu Pb Sn Al LD1 CuPb1Sn LD2 CuPb24Sn LD3 CuPb24Sn LD4 AISnCu Allowable Load : 1, kgf/cm 2 Allowable Speed : 5 m/s Structure of LD Series Lead-bronze (CuPb1Sn1) Low-carbon steel Galvanic protection 25

26 Bimetal Bearings (LD Series)... Type of Lubricating Surface Spherical Type Oil Groove Type Joint Type Straight Seam Butterfly Seam Bushing Size & Tolerance The Inner diameter tolerance of LD standard bushing and flanged bushing is H9. (when pressed in H7 standard Housing) We also provide different kinds of washers, plates and products designed according to customers' special requirement both in metric and inch size products, however, the outer diameter should be within 35mm, wall thickness within 1mm and length within mm. Recommended Installation Sizes - Suitable Housing : H7 - Mating Shaft : f7 & e7 26

27 ... Bimetal Bearings (LD Series) Standard Standard Bushings Bushings LDB b Slit d1 d2 Dimensions Product Length b(tolerance b.25)mm (mm) Code d1 d LDB Dimensions Product Length b(tolerance b.25)mm (mm) Code d1 d LDB Howtoorder Product Code - d1 b - *Type of lubricating - *Type of joint - *(Symbol) Example) LDB S - B - LD1 *Refer to page 26 27

28 J Standard Standard Flanged Flanged Bushings Bushings Bimetal Bearings (LD Series)... LDF R 1 +_.5 b Product Code - d1 b - *Type of lubricating - *Type of joint - *(Symbol) Example) LDF S - S - LD1 Standard Thrust Washers LDW T a d D d3 d1 d2 Slit Product Code LDF Dimensions (mm) Length b (Tolerance b.25) mm d 1 d2 d /18 14/ 14 16/22 17/ /24 18 /26 23/ / / /5 4 44/ /6 5 55/ /7 6 65/ /8 7 75/ /9 Product Code LDF Dimensions (mm) Length b (Tolerance b.25) mm d1 d 2 d /1 9 95/11 1 /1 11 1/13 1 5/ / /165 5/ / / / /225 5/ / / / / /34 *Refer to page 26 Product Code LDW Dimension (Tolerance) Shaft Dia +.25 d D -.25 T -.5 J a Product Code LDW Dimension (Tolerance) Shaft Dia +.25 d D -.25 T -.5 J a Product Code - Shaft Dia - *Type of lubricating - *(Symbol) *Refer to page 26 Example) LDW S - Ld1 28