SAE-799 / CuPb24Sn4 | Bimetal Bearings | Bimetal Bushings

SAE-799 bimetal bearings

Bimetal Bush SAE-799
Specifications

SAE-799
cylindrical bushings
Metric Size

SB-799 Material ( CuPb24Sn4, SAE-799, JIS-LBC6 Bronze Alloy )

Sintered SAE799 Layer + Steel Backing + Copper Plating / Tin-Plating

SB-799 is a bimetal bushing with steel as backing and sintered CuPb24Sn24 as lining layer.
This type has fairly good performance in anti-fatigue and load capacity.
It is suitable for middle speed and middle load.
When over plated certain soft alloy, it can be applied in high-speed internal combustion engine and as connect rod.

Features

Steel shell backed with a lead bronze lining bearing material for oil lubricated applications. This material has high load capacity and good fatigue properties. It is widely used in automotive applications such as compressors, steering gear, power steering, pedal bearings, king-pin bushes, tailgate pivots, mechanical handling and lifting equipment, hydraulic motors, agricultural machinery etc.

Structures

1. Sinter bronze powder: good wear resistance and excellent load carrying capacity.
2. Steel backing: provides exceptionally high load carrying capacity, excellent heat dissipation.
3. Copper plating thickness 0.002mm provides good corrosion resistance.

Composition Analysis of SB-799 ( CuPb24Sn4, SAE-799, JIS-LBC6 Bronze Alloy )

Cu=balance Pb=21.0~27.0% Sn=3.0~4.5% Zn=0.5% P=0.1% Fe=0.7% Ni=0.5% Sb=0.2% Others=0.5%


Chemicals (Inner sintered layer)	SB-792 SAE-792 CuPb10Sn10	SB-799 SAE-799 CuPb24Sn4	SB-820 DIN17670 CuPb6Sn6Zn3	SB-830 BS PB1 CuSn10	SB-840 CuSn6 (2.1020) CuSn6.5P	SB783 SAE783 AlSn20Cu
Cu	Balance	Balance	Balance	Balance	Balance	0.7~1.3
Pb	9.0~11.0	21.0~27.0	2.0~4.0	0.1	0.1	-
Sn	9.0~11.0	3.0~4.5	5.0~7.0	9.0~10.0	6.0~6.8	17.5~22.5
Zn	0.5	0.5	5.0~7.0	0.3	0.3	-
P	0.1	0.1	0.1	0.1	0.1~0.3	-
Fe	0.5	0.7	0.6	0.5	0.6	0.7
Ni	0.5	0.3	0.3	0.5	0.5	0.1
Al	-	-	-	-	-	Balance
Other	0.5	0.5	0.5	0.5	0.5	0.5

• Referance of Material Standard Code

	Material	Alloy composition	Alloy hardness	International standard
	SB-792	CuPb10Sn10	80~120HB	JIS-LBC3. JIS-LBC3. SAE-792. DIN CuPb10Sn. UNS C93700. CLEVITE F100. CC495KDAIDO L10. D. A. B. D57. Federal Mogul HF2. Glacier SY. GLYCO66. ACL F100
	SB-799	CuPb24Sn4	45~70HB	JIS-LBC6. JIS-LBC6. SAE-799. GLYCO 68. DAIDO L23. Clacie rsx. ACL F250
	SB-820	CuPb6Sn6Zn3	70-100HB	Din17670
	SB-830	CuSn10	70-100HB	Din G-CuSn10 ;BS PB1
	SB-840	CuSn6.5P	70-100HB	DIN CuSn6(2.1020); JIS H3110
	SB-783	AlSn20Cu	30~40HB	JIS-AJL. SAE-783. GLYCO74. Glacier AS15. ACL820

• Technical Data


	Data		SB-792 SAE-792 CuPb10Sn10	SB-799 SAE-799 CuPb24Sn4	SB-820 DIN17670 CuPb6Sn6Zn3	SB-830 BS PB1 CuSn10	SB-840 CuSn6(2.1020) CuSn6.5P	SB-783 SAE-783 AlSn20Cu
	Material		Steel+ CuPb10Sn10	Steel+ CuPb24Sn4	Steel+ CuPb6Sn6Zn3	Steel+ CuSn10	Steel+ CuSn6.5P	Steel+ AlSn20Cu
	Alloy layer hardness HB		80~120	45~70	70~100	70~100	70~100	30~40
	Max dynamic Load P N/mm²		150	130	130	130	130	100
	Max.Speed V m/s	Grease lubrication	3.5	2.5	2.5	2.5	-	-
	Max.PV limit N/mm²·m/s		2.8	2.8	2.8	2.8	2.8	-
	Friction Coefficient u		0.05~0.10	0.05~0.15	0.05~0.15	0.05~0.15	0.05~0.15	-
	Max.Speed V m/s		8	10	5	5	5	15
	Max.PV limit N/mm²·m/s	Oil lubrication	10	10	10	10	10	8
	Friction Coefficien u	Oil lubrication	0.04~0.12	0.04~0.12	0.04~0.12	0.04~0.12	0.04~0.12	0.05~0.02
	Max Working temperature ℃	Grease lubrication	150	150	150	150	150	150
	Max Working temperature ℃	Oil lubrication	250	250	250	250	250	250
	Thermal conductivity W/mk		60	60	60	60	60	47
	Coefficient of linear expansion		18×10^-6/K﹣¹	19×10^-6/K﹣¹	18×10^-6/K﹣¹	18×10^-6/K﹣¹	19×10^-6/K﹣¹	18×10^-6/K﹣¹
	Match the axis	Hardness HRC	≥53	≥45	≥53	≥53	≥53	≥270
	Match the axis	Roughness Ra	0.32~0.63	0.32~0.63	0.16~0.63	0.32~0.63	0.16~0.63	0.16~0.63
• Main Features

	① Sliding		★★★★★	★★★★★	★★★★	★★★★★	★★★★	★★★★
	② Abrasion Resistance		★★★★★	★★★	★★★★	★★★★	★★★★	★★★★
	③ Hardness		★★★★★	★★	★★★★	★★★	★★★★	★★
	④ Anti-bite Shaft		★★★★	★★★★★	★★★	★★★★	★★★	★★★★
	⑤ Corrosion-resistant		★★★★★	★★	★★★★	★★★★	★★★★	★★★
	⑥ High loading		★★★★★	★★	★★★★	★★★★	★★★★	★★★
	⑦ Anti-fatigue		★★★★★	★★★	★★★★	★★★★	★★★★	★★★
	⑧ Environmental protection		x	x	x	★★	★★	★
* Initial pre-lubrication at assembly is required. • Types of Oil Grooves for bimetal bushings

• Types of Oil Prockets for bimetal bushings

• Types of Butt Jionts for bimetal bushings

Typical Applications


The main applications are in Automotive and Industrial products. Automotive: McPherson struts and shock absorbers, doors, bonnets and tailgate hinges, steering columns, clutches, gearbox selector fork guides, wiper arms, power steering pumps, pedal bushes, ABS equipment, etc. Industrial: Aerospace, agricultural equipment, construction equipment, material handling equipment, forming machines-metal, plastic and rubber, office equipment, medical and scientific equipment, packaging equipment, pneumatic and hydraulic cylinders, pumps and motors, railroad and tramways, textile machinery, valves, etc. Bimetal Bushings‘ applications for King pin, Spring eyes, Trunion, Piston pin, Rocker arm, Connecting rod, Transmission system, Distributor, Clutch, pilot, Starter, Generator, Oil pump, gear pump, Water pump, Cam shaft, Intermediate shaft, Balance shaft. Bimetal Washers’ applications for Main bearing, Cam shaft, Crank shaft, Distributor, Transmission system, Oil pump, Ram pump, vane pump and other applications. Engine Bearings’ application for Cam shaft, Crank (main), Con. Rod (big end) and other applications of engine bearing.

Other Standard Wrapped Bimetal Bushing Shapes


SAE-792 Bimetallic Bush	SAE-48 Bimetallic Bush	SAE-783 Bimetallic Bush


Flanged Bimetallic Bush	Bimetallic Thrust Washers	Bimetallic Strips & Plates

Gallary of Bimetal Bearings / Bimetallic Bushings / Bimetal Leaf Spring Bushings

SAE-792 (CuPb10Sn10) Bimetal Bushings

Babbitt Bearings ( SAE783 / AlSn20Cu )	Bimetal Bush ( SAE792 / CuPb10Sn10 )	Bimetal Bush \| X groove \| 50x55x60 mm	Bimetal Bush (SAE799) with Oil Prockets

Combined Bush - bronze on steel	Centrifugal Cast Bronze on Steel Bush	Oil grooved Bimetal Bushing	Bimetallic Bearing with Oil Groove

Bimetal bearing with oil pockets	Bimetal bush with oil grooves	Bimetal bush with diamond graphites	Wrapped Bimetal Bush

SAE-799 (CuPb24Sn4) Bimetal Bushings

Bimetallic bushing with diamond oil Pockets	Oil grooved bimetal bushing	BS PB1 (CuSn10) Bimetal Bushing	DIN17670 CuPb6Sn6Zn3 Bimetal Bushing

CuSn6 (2.1020) Bimetal Bushing	CuSn6.5P Bimetal Bushing	CuPb10Sn10 Bimetal Bushing	SAE792 Bimetal Busing

SAE799 Bimetal Bushing	DIN17670 Bimetal Bushing	CuPb24Sn4 Bimetal Bushing	CuPb6Sn6Zn3 Bimetal Bushing

BS PB1 (CuSn10) Bimetal Bearings

BS PB1 Bimetal Bearing with spirial oil grooves inside	CuSn10 Bimetal Bearing filled with graphites	CuSn12 Bimetal Bearing with inside oil pockets	CuSn12 Bimetal Bushing with oil inside oil groove and oil pockets

CuSn6 (2.1020) Bimetal Bearing	CuSn6.5P Bimetal Bearing	JIS-LBC3 Bimetal Bearing	JIS-LBC6 Bimetal Bearing

SAE-783 (AlSn20Cu) Bimetal Bushing	Customized BImetal Bushing with Taperd Bore	Standard Bimetal Bushing with SAE792 Slide Layer	Standard Bimetal Bushing with SAE-792 Slide Layer

SAE-783 (AlSn20Cu) Bimetal Bushings / Babbitt Bearings

SAE783 Bimetal Bearings	SAE-783 Bimetal Bearings	AlSn20Cu Bimetal Bearings	SAE-48 (CuPb30) Bimetal Bearings

SAE-792 Bimetal Bearings with inside oil groove	SAE-48 Bimetal Bearings with X-shaped oil groove inside	CuPb30 Bimetal Bearings with oil pockets inside	CuPb30 Bimetal Bearings with diamond-shaped graphite inside

CuSn8Ni1 Bimetal Bush with oil grooves aside the split	Split Bimetal Bush with CuSn6AgFe3P Slide Layer	CuPb10Sn10 Bush with inside grooves and Butt Jionts	SAE792 Bush with inside grooves and Butt Jionts

CuPb24Sn1 Bimetal Bush / CuPb24Sn1 Bimetal Bearing

Bimetal Bush sintered with CuPb7Sn7Zn3 Bronze Layer	Bimetal Washer sintered with CuPb3Sn6Zn6 Slide Layer	SAE783 Bimetal Bushing and SAE783 Bimetal Bearing Shell	Vavious Sizes of SAE792 Bimetal Bushings with Copper-Plating