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SAE841 | ASTM-B438 | SINT-A50 | Sintered Bronze Spherical Bushings with Oil-soaked
Sintered Bronze Bearings
Sintered Bronze
Material List
SB-SBS Bearings
Metric Sizes

 SB-SBS | SAE841 spherical sintered bronze bearings with oil-impregnated 

It's made of bronze powder, mold pressed in high pressure, sintered in high temperature and soaked
in oil by vacuum. It's used in domestic electric appliances, electric tools, textiles machinery, chemical
machinery and automobile industry, etc.

Why PM ?
The Powder Metallurgy (PM) process provides a host of advantages over cometing metal working
technologies. These all add up to cost-effectiveness, shape and material flesibility, application versatility,
and part-to-part uniformity for improved product quality.

Sintered Bronze Materials

 Basic Materials

 Chemical  Composition (%)

 Other Materials 

 ASTM B438-70 GR1 Type Ⅱ
 DIN30910 PART3 
 SINT A50 Mil-B-5687C

  Cu: 87.5~90.5,
  Fe: 1.0max,

  MPIF: CT- 1000 - K19 / ASTM: B 438 - 83a
  MPIF: CT - 1000 - K26 / ASTM: B 438 - 83a / DIN: SINT - A50 
  MPIF: CT - 1000 - K37 / ASTM: B 438 - 83a / DIN: SINT - B50 
  MPIF: CT - 1001 - K23 / ASTM: B 438 - 83a / DIN: SINT - B51
  MPIF: CT - 1001 - K33 / ASTM: B 438 - 83a / DIN: SINT - C51
  MPIF: CTG - 1004 - K10
  MPIF: CTG - 1004 - K15 

 Bronze Alloy List 
Typical Applications

 Power Tools

  Spur Gear,helical gears,transverse gear,pinion gear,helicoidal gear,dual gear,camshaft, bearings, rotors;
  Hand drill: bushings, couplings, spur gears, helical gears, nuts, etc.;
  Vibrations Drill: converters, ratchet, bushings, etc.;
  Planer: bushings, belt pulley A.B.C, etc.;
  Electric Planers: bushings, belt pulley A.B.C, etc.;
  Circular Saw: washers, etc.;
  Electric Coordinates Saw: gear, balanced hammer, etc.;
  Bench Drill: gear, helical gear.



  Engine: Crankshaft Gear, camshaft gear, balance blocks, sliding wheel;
  High-powered tractors: Driven gears for low pressure pump and metering pumps, phase adjustment cam,
  adjustment cam, connecting rod, hydraulic output pressure cap, rotor, stator, oil pan, valve film, round room
  board, separated disk, drive ring.

 Office Machinery

  Duplicator, typewriters, Imaging Machinery, etc.
  Duplicator: gear, scanning cam, pulley, sprocket, gear. rods, etc.;
  Typewriters: bearings, star wheels, speed cam, print cam, select the cam, etc.;
  Imaging Machinery: magnetic shield, winch wheel, gear, etc..

 Home Appliances

  Electric fans, washing machines, audio equipment, electric sewing machine, electric razor, etc.
  The main products are the sintered metal motor bearings.
  Gear pumps: gear and floating side;

 Hydraulic Parts

  Rotor pump: inner and outer rotor, side board;
  Vane pump: pressure plate with oil pan
  Piston: cylinder, piston sliding shoe, pressure plate, the ball washer end;
  And various valves.

 Textile Machinery

  Automatic loom, drum-type winder, draw frame, and wire machines, warp knitting machine, carding
  machine, twisting machines, twisting machines, spinning machines, cotton sweaters machines, wool
  weaving machines, dyeing machine towel machine, etc.; Ring

 Auto industry

  Engine parts, power transmission, steering parts, suspension parts, brake parts, electrical installation parts


  Air compressors, machine tools, aircraft, ships, mining machinery, construction machinery, instruments,
  food machinery, hardware, etc.

Sinobronze's Powder Matallury Process

Other Standard Sintered Parts with Oil-impregnated



SAE841 Cylindrical Sintered Bronze Bush   SAE841 Spherical Sintered Bronze Bush   SAE841 Spherical Sintered Bronze Bush            
Sintered Bronze Parts with Graphite   Sintered Iron Parts with Graphite   Sintered Stainless Steel Parts

Sintered Bronze Spherical Bushings with oil-impregnated 

Sintered bronze spherical bushing
SAE841 / ASTM B438 / SINT A50
  Sintered bronze cylindrical bushing
SAE841 / ASTM B438 / SINT A50
  Sintered bronze cylindrical bearing
bronze powder + Graphite / MoS2
  Sintered Iron spherical bearing
iron powder + Graphite / MoS2