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Manufacturers & Exporters of Bimetal & Trimetal Con Rod, Big End, & Main Journal bearings, bushings for Main Engines, Marine Engines, Compressors, DG Sets, Generator, Earthmovers for RP brand. We manufacture Thin walled Shell bearings Thick Wall & Flange Bearings & Bushings under size bearings, over Size, coustom bearing as per Specification, Drawing or Samples. We manufacture Bi-metal, Tri-metal Bearings, White Metal, Babbitt Metal Bearings
 
 
BI-METAL BEARING & BUSHINGS
  1. ALLOY REFERENCE
  2. MATERIAL CHARACTERISTICS
CAST SOLID BEARING & BUSHINGS
  1. ALLOY REFERENCE
  2. MATERIAL CHARACTERISTICS
 ALLOY REFERENCE FOR BIMETAL & TRI METAL BEARINGS & BUSHINGS 
 

ALLOY FORM

SAE REF.

Pb
 (LEAD )

Sn (TIN)

Cu
 (COPPER)

Sb
 (ANTIMONY)

Ni
 (NICKEL)

Zn
(ZINC)

Fe
 (IRON)

CAST COPPER LEAD

COPPER LEAD

SAE - 793

8 - 10

4 - 6

BAL.

0.5 MAX.

2.0 MAX.

2.0 MAX.

 

SAE - 792 SAE - 797

9 - 11

9 -11

BAL.

0.5 MAX.

0.5 MAX.

0.75 MAX.

 

 

18 - 24

1.5 - 3.0

BAL.

 

1.5 MAX.

1.00 MAX.

0.70 MAX.

 

19 - 24

1.8 - 2.8

BAL.

 

 

 

0.25 MAX.

 

13 - 16

7 - 8

BAL.

 

 

 

 

SAE - 49

21 - 27

1.75 -2.75

BAL.

 

 

 

 

SAE - 794 SAE - 799

23 - 27

2 - 4

BAL.

 

 

 

 

SINTERED COPPER LEAD

COPPER LEAD

SAE - 792

9 - 11

9 - 11

BAL.

0.5 MAX.

0.5 MAX.

0.75 MAX.

 

SAE - 49

21 - 27

1.75 -2.75

BAL.

 

 

 

 

SAE - 794

23 - 27

2 - 4

BAL.

 

 

 

 
 

ALLOY FORM

SAE REF.

Pb
 (LEAD )

Sn (TIN)

Cu
 (COPPER)

Sb
 (ANTIMONY)

 As
(ARSENIC)

Ni
 (NICKEL)

Al
(ALUMINIUM)

Si
(SILICON)

Fe
 (IRON)

CAST BABBITT / WHITE METAL

LEAD BASED WHITE METAL 

SAE - 14

BAL.

8.0 - 10.0

0.8 - 1.20

13.0 - 15.0

0.4 - 0.7

0.05 - 0.15

 

 

 

SAE - 15

BAL.

0.9 - 1.25

0.6 MAX.

14.5 - 15.5

0.8 - 1.2

 

 

 

 

TIN BASED WHITE METAL

SAE - 12

0.35
MAX.

BAL.

2.5 - 3.5

6.5 - 7.5

 

 

 

 

 
 

ALLOY FORM

SAE REF.

Pb
 (LEAD )

Sn (TIN)

Cu
 (COPPER)

Al
(ALUMINIUM)

Si
(SILICON)

Fe
 (IRON)

CLAD ALUMINIUM

ALUMINUM TIN

SAE - 783

 

17.5 -22.5

0.7 - 1.3

BAL.

0.5 MAX.

0.5 MAX.

OVERLAY PLATING

LEAD TIN

SAE - 191

BAL.

8 - 12

 

 

 

 

LEAD TIN COPPER

SAE - 192

BAL.

8 - 12

2 - 3

 

 

 
 

STEEL REFERENCE

STEEL

SAE REF.

C

Mn

P

S

MILD 

STEEL

SAE - 1008

0.1 MAX.

0.3 - 0.5

0.04 MAX.

0.05 MAX.

SAE - 1010

0.05 - 0.13

0.55 MAX.

0.04 MAX.

0.05 MAX.
 MATERIAL CHARACTERISTICS for BI-METAL BEARING & BUSHINGS
Alloy Form Lining Material Metal Ref.

BRINELL HARDNESS

 Features And Applications
Cast Babbitt
 		Lead Based White Metal SAE-14 20 This lead base Babbitt is soft, excellent embed ability for relative applications, minimum lubrication, good resistance, low fatigue resistance and has been used for many years in lower load application.
Lead Based White Metal SAE-15 18 This lead base Babbitt has a good bearing performance, good embed ability and has been used for many years on lower load application.
Tin Based White Metal SAE-12 32 This tin base Babbitt has good sliding properties, conformability and high toughness; good embed ability suitable for high sliding velocities in the hydrodynamic range, mean load, impact stress at low frequency insensitive to reversed bending stress.
Cast Copper
Lead		 Copper Lead SAE-793 80 Increased hardness and wear resistance. Increasing the lead content improves the tolerance of poor alignment and intermittent lubrication
Copper Lead SAE-792 85 This material is best suited for bushings and washers subjected to high impact and vibratory loads. In most cases, it operates best with hardened shaft.
Copper Lead SAE-49 60 High fatigue strength, normally plated with an overlay when used in bearing application and in this form may be operated with hard or soft shafts susceptible to corrosion by degraded oil when not overlay plated
Copper Lead SAE-794 62 High fatigue strength and shock resistance, suitable for high speed shafts, oscillating or rotating motion hard shaft desirable, normally overlay plated when used in bearing application.
Sintered Copper Lead
 		Copper Lead SAE-792 110 This material is best suited for bushings and washers subjected to high impact and vibratory loads. In most cases, it operates best with a hardened shaft.
Copper Lead SAE-49 55 This is a bearing material designed exclusively for high load. The material is plated with a unique Tri metal overlay and nickel dam.
Copper Lead SAE-794 50 This material is employed for bushings and thrust washers applications subjected to intermediate impacts and vibratory loads. It has certain degree of embed ability and it is suitable for  higher speed and load.
Clad Aluminium Aluminium Tin SAE-783 40 This has good fatigue resistance, good surface behavior and excellent corrosion resistance to with stand intermediate to heavy load of main ,con rod bearing, thrust washer and wrapped bushes for hard and soft shafts.
Cast Aluminium (Solid) Aluminium Tin SAE-770 55  
Overlay Plating Lead Tin SAE-191 12  
Lead Tin Copper SAE-192 14  
 ALLOY REFERENCE FOR SOLID CAST BEARINGS SHELL & BUSHINGS 
Bearing

Bronzes

Leaded Types

     Copper Tin Lead Zinc Nickel Other
85-5-5-5 85 5 5 5    
83-7-7-3 83 7 7 3    
80-10-10 80 10 10      
LEADLUBE 70 5 25      
Hi-Tin

Bronzes

Gear Bronzes

 PHOSPHOR BRONZE   89 11        
88-10-2 88 10   2    
COMP. G 88 8   4    
88-8-4 87 8 1 4    
COMP. M 88 6 1.5 4.5    
Yellow Brasses HI COPPER   72 1 3 24    
COM'L. #1 67 1 3 29    
Bronzes     Copper Aluminum Iron Zinc Nickel Other
#70 MANG.   58 1 1 40    
#90 MANG. 64 4 3 26   3 Mang.
#110 MANG. 63 6 3 25   3 Mang.
Aluminum

Bronzes

 ALUM. BRZ. A   88 9 3      
ALUM. BRZ. B 89 10 1      
ALUM. BRZ. C 85 11 4      
ALUM. BRZ. D 81 11 4   4  
NI-AL. BRZ. 81 9 4   5 1 Mang.
ALUMINUM TIN SAE REF.   Sn (TIN)

Cu
 (COPPER)

Ni
 (NICKEL)

Si
(SILICON)

Fe
 (IRON)

Al
(ALUMINIUM)
SAE - 770   5.5 -7.5

0.7 - 1.3

 0.7 - 1.3

0.7 MAX

0.7 MAX

 BAL
 
 MATERIAL CHARACTERISTICS for CAST BEARING & BUSHINGS

ALLOY FORM

COMMERCIAL ALLOY

SAE REF.

TENSILE  STRENGTH

 BRINELL HARDNESS

TYPICAL USES

Aluminum

Alloys

319

326

23-28

55-100

 Machine tool parts, marine applications requiring pressure tightness and corrosion resistance

356

323

30-33

55-95

A356

336

34-37

70-105

Aircraft applications - higher strength and ductility applications.
 

770

 

 

This material having high fatigue strength, good corrosion resistance and conformability is used with hard shafts.

 

Bearing

Bronzes

Leaded Types

85-5-5-5

40

32

60

General miscellaneous - low pressure valves & fittings - pumps

83-7-7-3

660

32

60

General purpose bushings and bearings

80-10-10

64

30

60

High speed heavy pressure bearings - acid resistant - pressure tight castings

LEADLUBE

 

25

48

High speed bearings for light loads

Hi-Tin

Bronzes

Gear Bronzes

PHOS. BRONZE

65

36

75

Gears - bearings - bushings

88-10-2

62

40

70

Bushings - impellers - valve components - gears

COMP. G

620

40

70

Bushings - impellers - valve components - gears

88-8-4

 

36

70

Valves - high pressure steam castings

COMP. M

622

34

65

Medium pressure hydraulic and steam fittings 550º F

Yellow Brasses

HI COPPER

 

35

45

Plumbing fixtures - ornamental castings

COM'L. #1

 

30

50

Plumbing fixtures not subject to high pressure - ornamental castings

 

Manganese Bronzes

#70 MANG.

43

65

100

Marine underwater fittings - propellers, struts, machinery parts

#90 MANG.

430A

90

180

Higher strength marine fittings - structural parts

#110 MANG.

430B

110

225

Low speed heavy load bearings - gears, cams, nuts

Aluminum

Bronzes

ALUM. BRZ. A

68A

65

110

Acid resisting pumps - valve seats, gears, propellers

ALUM. BRZ. B

68B

65

110

Nuts - gears - slides

ALUM. BRZ. C

 

70

180

Heavily loaded worm gears

ALUM. BRZ. D

 

90

200

Heavily loaded gears - cams - corrosion resistant parts

NI-AL. BRZ.

 

85

170

Propeller hubs - blades - saltwater used parts
Cast Aluminium Bronze JIS/HS 114     Very hard material suitable for marine
environment, hardened shaft, essential,
relatively poor embed ability & for structured components under sliding conditions
 
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