SB-BU Material Specifications   SB-DU bushings Metric Sizes    SB-DU bushings Inch Sizes				SB-DU bushes, PTFE lined, steel backing, self-lubricating dry bearings   PTFE / Fibre + Bronze + Steel Backing + Copper Plating / Tin-Plating Sintered PTFE and Bronze on Steel Backing, surface with copper-plating or tin-platin Features Suitable for dry running with a low coefficient of friction, low wear rate, good sliding characteristics, the transfer film created will protect the mating metal surface. Suitable for rotary and oscillating movement, high chemical resistance, lower absorption of water and reduced swelling. Also performs well with lubrication. Structures 1. PTFE/Fibre mixture thickness 0.01~0.03mm, provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film. 2. Sintered bronze powder thickness 0.20-0.35mm, provides Max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE-Fibre mixture. 3. Low-carbon steel, gives exceptionally high load carrying capacity, excellent heat dissipation. 4. Copper/Tin plating thickness 0.002mm, provides good corrosion resistance. Technical Data  Physical and Mechanical Properties    Usage  Thermal Conductivity λ 40 W/mK   dry good  Maximum Operating Temperature Tmax 280 °C   oil lubricated good  Minimum Operating Temperature Tmin -200 °C   grease lubricated fair  Compressive Yield Strength σc 350 N/mm2   water lubricated fair  Maximum Static Load Psta,max 250 N/mm2   process fluid lubricated fair  Maximum Dynamic Load Pdyn,max 140 N/mm2 　  Maximum Sliding Speed V-dry 2.5 m/s  Maximum PV Factor-dry, continuous operation 1.8 N/mm2 * m/s  Maximum PV Factor-dry, intermittent operation 3.5 N/mm2 * m/s  Coefficient of friction f-dry 0.02-0.25 -  Coefficient of friction f-oil lubricated 0.02-0.12 -   Typical Applications This material meets the demanding criteria for long life and trouble-free performance with or without lubrication. Automotive: tractors, combines, crop sprayers, earthmovers, graders and other construction, auto machines, specific uses in power steering cylinders, steering gear thrust washers, disc brakes, calipers and pistons, shock absorbers, governor linkage, windshield wiper motor, tilt gear assemblies... Business machines: photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers and peripheral equipment, automatic printing devices, mail processing machinery... Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions... Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...And materials handling, marine engine, packaging, textile equipment, tools...etc. Other Standard SB-DU Shapes
SB-DU Bearings & SB-DU bushings (SF-1 series)        0608DU 6x8x8 mm   1615DU 16x18x10 mm   1815DU 18x20x15 mm   3020DU 30x34x20 mm                     1625DU 16x18x25 mm   2525DU 25x28x25 mm   3030DU 30x34x30 mm   3240DU 32x36x40 mm                     4525DU 45x50x25 mm   5030DU 50x55x30 mm   5050DU 50x55x50 mm   5535DU 55x60x35 mm                     5560DU 55x60x60 mm   6040DU 60x65x40 mm   6525DU 65x70x25 mm   7015DU 70x75x15 mm                     7040DU 70x75x40 mm   7060DU 70x75x60 mm   7540DU 75x80x40 mm   7570DU 75x80x70 mm                     8040DU 80x85x40 mm   9030DU 90x95x30 mm   9550DU 95x100x50 mm   11060DU 110x115x60 mm                     26070DU 260x265x70 mm   30080DU 300x305x80 mm   90100DU 90x95x100 mm   14DU12 7/8 x 1 x 0.75 inch                     48DU72 3 x 3-3/16 x 4.5 inch   1720DU 17x19x20 mm   2008DU 20x23x8 mm   2023DU 20x23x23 mm                     2020DU 20x23x20 mm   3015DU 30x34x15 mm   25289.5DU 25x28x9.5 mm   384238DU | Gear Pump Bush 38x42x38 mm                     BB2820DU 28x31xF38x20 mm   DU rings     BS80DU 81.25x120x85x109.75 mm   40DU40 2-1/2 x 2-11/16 x 2-1/2 inch                     1220DU 12x14x10 mm   2020DU 20x23x20 mm   3025DU 30x34x25 mm   5050DU 50x55x50 mm                           6535DU 65x70x35 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1215DU  1220DU  1225DU  1310DU  1320DU  1405DU  1410DU  1412DU  1415DU  1420DU  1425DU  1510DU  1512DU  1515DU  1520DU  1525DU  1610DU  1612DU  1615DU  1620DU  1625DU  1720DU  1810DU  1815DU  1820DU  1825DU  2010DU  2015DU  2020DU  2025DU  2030DU  2215DU  2220DU  2225DU  2230DU  2415DU  2420DU  2425DU  2430DU  2515DU  2520DU  2525DU  2530DU  2550DU  2815DU  2820DU  2825DU  3010DU  3015DU  3020DU  3025DU  3030DU  3040DU  3220DU  3230DU  3240DU  3520DU  3530DU  3535DU  3540DU  3550DU  3720DU  4020DU  4030DU  4040DU  4050DU  4520DU  4530DU  4540DU  4545DU  4550DU  5020DU  5030DU  5040DU  5050DU  5060DU  5520DU  5525DU  5530DU  5540DU  5550DU  5555DU  5560DU  6020DU  6030DU  6040DU  6050DU  6060DU  6070DU  6530DU  6550DU  6570DU  7040DU  7070DU  7560DU  7580DU  8040DU  8060DU  8080DU  80100DU  8530DU  8560DU  85100DU  9060DU  90100DU  9560DU  95100DU  10050DU  10060DU  100115DU
02DU02  02DU03  025DU025  025DU04  03DU03  03DU04  03DU06  04DU04  04DU06  05DU06  05DU08  06DU03  06DU04  06DU06  06DU08  06DU10   06DU12  07DU08  07DU12  08DU04  08DU06  08DU08  08DU10  08DU12  08DU14  09DU06  09DU08  09DU10  09DU12  10DU04  10DU08  10DU12  10DU14  10DU16  11DU14  12DU04  12DU06  12DU08  12DU10  12DU12  12DU16  14DU04  14DU06  14DU12  14DU14  14DU16  14DU20  16DU06  16DU08  16DU12  16DU16  16DU20  16DU24  18DU06  18DU10  18DU12  18DU16  20DU06  20DU12  20DU14  20DU16  20DU20  20DU28  22DU12  22DU16  22DU24  22DU28  24DU08  24DU16  24DU18  24DU20  24DU24  24DU32  26DU16  26DU16  26DU24  28DU28  28DU32  30DU12  30DU16  30DU30  30DU36  32DU08  32DU16  32DU24  32DU28  32DU32  32DU40  34DU08  34DU12  34DU16  34DU24  34DU28  34DU32  34DU48  34DU64  36DU28  36DU32  36DU36  36DU40  36DU48  36DU56  36DU60  36DU64  36DU72  40DU16  40DU26  40DU32  40DU40  40DU48  40DU56  40DU60  40DU64  40DU72  40DU76  44DU32  44DU36  44DU40  44DU48  44DU56  44DU60  44DU72  44DU76  44DU80  48DU32  48DU36  48DU40  48DU48  48DU56  48DU60  48DU64  48DU72  48DU76  48DU80  52DU32  52DU38  52DU40  52DU48  52DU56  52DU60  52DU64  52DU72  52DU76  52DU80  56DU32  56DU38  56DU40  56DU48  56DU56  56DU60  56DU64  56DU72  56DU76  56DU80  58DU32  58DU36  58DU40  58DU48  58DU56  58DU60  58DU64  58DU72