The B50 Bronze Case With Graphite Nests Bearing Bushing Oilless is a high-performance component designed for use in various industrial applications where lubrication-free operation is desired. Constructed from durable B50 bronze, this bushing offers excellent wear resistance and mechanical strength, ensuring reliable performance even under extreme conditions.

The unique feature of this bushing is the incorporation of graphite nests, which provide inherent lubrication properties. This self-lubricating design eliminates the need for regular lubrication, significantly reducing maintenance requirements and operational costs. The graphite nests also contribute to reduced friction and heat generation, further enhancing the bushing's performance and lifespan.

The precision manufacturing of the B50 Bronze Case With Graphite Nests Bearing Bushing Oilless ensures a perfect fit and optimal performance in various applications. Wh used in automotive systems, machinery, or any other industrial equipment, this bushing offers a reliable and cost-effective solution for enhancing the wear resistance and lubrication properties of rotating assemblies.

In summary, the B50 Bronze Case With Graphite Nests Bearing Bushing Oilless is an excellent choice for industrial applications that require lubrication-free operation and superior wear resistance. Its durable construction, self-lubricating design, and precision manufacturing make it a reliable component in various industrial settings.

B50 Bronze Case With Graphite Nests Bearing Bushing BG bushing bearing BRONZO GRAPHITE CAST BRONZE/ GRAPHITE

SOLID LUBRICANT BRONZE BUSHINGS

B50 Bronze Case Graphite Nests Bearing Bushing for Low Speed Heavy Loads
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1610 16/22x10 Bronze Case Graphite Nests Bearing Bushing
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Cast Bronze C93200 Sleeve (Plain) Bearing for Online Sale

B50 1610 16/22x10 bronze case with graphite nests Bronze Bushing Saves You Time and money In Research, Design & Production Costs. E-mail Now! Wide Variety & Selection. Oilless Bushing & Bearings. Expert Customer Service.

Construction:
A solid graphite-based lubricant is incorporated in the bronze matrix at 25-35% of the sliding surface.
Operating mode: -100°C; +500°C

Areas of application:
At low speeds, especially under heavy, long-term loads in wet and corrosive environments
Equipment for the chemical, glass and paper industries
Industrial furnaces, rolling and casting machines
Excavators, drawbridges, and suction dredgers for metal powder metallurgy. Porous metal

Centrifugally cast, custom machined bronze bushings, washers, wear plates. Lead-free. Bushing Type: Bronze Bushings, Bronze Plate

Cast Bronze C93200 Sleeve (Plain) Bearings Online Sale

Standard Graphite Plugged Bronze Sleeve Bushing

The standard graphite plugged bronze sleeve bushing is to open cavities of appropriate size and orderly arrangement on the metal friction surface of the bearing matrix, and then embed a molded solid lubricant with unique self-lubricating properties in the cavities (the solid lubricant area is generally 25% of the friction area -35%) and made of self-lubricating bearings.

The base body of the standard graphite plugged bronze sleeve bushing should be determined according to the working conditions of the bearing itself. The more commonly used materials are high-strength brass, tin bronze, castings and so on. There are two main types of embedded solid lubricating materials, one is natural black lead, artificial graphite, and MoS2 synthesis, and the other is synthesized with as the matrix. According to the bearing's own operating conditions, the combination of different metal substrates and embedded solid lubricants can ensure that the product can meet the special needs of various temperature, load, motion and media operating conditions, while ensuring stable and reliable operation.

1. No need for oil supply device, oil injection hole, oil groove processing

2. Reduction of operating costs

3. Design time reduction

4. Lubricant recycling and environmental protection

Solid Lubricant
Lubricant	Features	Typical application
SL1 Graphite+add	Excellent resistance against chemical attacks and low friction.Temp limit 400 ℃	Suite for general machines and under atmosphere
SL4 +Additives	Lowest in friction and the good of water lubrication, Temp. limit 300℃	The ship, hydraulic turbine,gas turbine etc

Self Lubricating Bushings, Oilless Bush Supplier From China

We are a leading manufacturer and supplier of Oilless Bushing and our product is composed of good quality.

The oilless bushing, integrated into solid lubricants without oil, is a new type of solid copper alloy, which is homogeneously integrated with a solid lubricant in its body.

It breaks the limit of the general bearing, the lubrication of which depends on the oil film.

So it is suitable for high temperatures, heavy use, corrosion protection, or when oil is difficult to import.

Its performance doubles on both hardness and wear-friction.

Now it is widely applied in successive casting machines, steel rollers in metallography, mineral machines, ships, steam turbines, hydraulic turbines, and plastic injection molding machines.

JDB bronze graphite bush (oilless) sleeve bushing 50 x 62 x 50 mm long

Oilless Flange Sleeve Bearing Bushing, JDB material is made of strong cast bronze based metal with special solid lubricants embedded. The base metal with stands high load and the solid lubricants provide for self-lubrication. Oilless Flange Sleeve Bearing Bushing shows excellent performance without pre-lubrication under conditions of extreme high/lower temperature with low speed. This material provides a maintenance-free bearing solution, particularly for high load, intermittent of oscillating motion.

Oilless Flange Sleeve Bearing Bushing can be applied under dry, high temperature, high pressure, corrosive, water or other chemical environments when no oil can be introduced.

Oilless Flange Sleeve Bearing Bushing is widely be used in automotive product line, water engineering, dam gate, plastic industries, successive casting machines, steel rollers in metallurgy industry, mineral machines, ship turbo generators, hydraulic turbines and injection molding machines.

Oilless Bushing - Select, configure, order. Viiplus delivers punctually and offers fair prices.

Our oilless bushings are the perfect solution for projects where lubrication cannot easily be provided or where conventional lubricants may carbonise.

Contact Us - Oilless Bushing Supplier
To make an inquiry about or request for a catalog of oilless bushings bearings, contact today!

(Bronze with graphite embedded)

Oilless Bushing Defined (What is oilless bushing?)

A oilless bushing, or more commonly sliding bearing and slide bearing, is the simplest type of bearing, comprising just a bearing surface and no rolling elements.

Oilless bushing can refer to ball bearings or just "rings" that do not require periodic lubrication - because a lubricant such as powdered graphite is incorporated into the material the bearing is made of. These are also known as Embedded Graphite Bronze Bushes and have 20-25% graphite inserts on the walls / surface which provide lubrication at all times which also reduces the coefficient of friction.

These oilless bushings are suitable for dry environments where contamination is a risk, wet applications where there is high humidity and applications where the bearing is in an inaccessible location.

Oilless Bushing, Maintenance-free Sleeve Bushing

We are leading manufacturer and supplier of Oilless Bushing and our product is made up of good quality.

The oilless bronze bushing is a new type made of a strong copper alloy and is embedded uniformly in its solid lubricant housing.

Oilless Bushes are suitable for high temperatures, heavy loads, corrosion or places where oil is difficult to introduce.

Specify Part No. by required I.D., O.D., and Length. (e.g.) I.D. is 50mm, O.D. is 62mm, and length is 50mm.

-Oilless Bronze Bushings - Copper Alloy Straight, Standard

Oilless Bushings Materials

Material: High Tensile Brass Alloy
Solid Lubricant Embedded

Oilless Bushings Feature

●Oilless bushing serviceable without the need for lubrication.

●Oilless bushing Demonstrates high performance under high-load and low-speed operations.

●Oilless bushing Demonstrates superior wear resistance in applications where oil film is seldom produced such as reciprocating motions, oscillation, frequent starts, and stops, etc.

●Oilless bushing has superior chemical resistance and corrosion resistance.

●Standard Oilless bushings products are available in various sizes.

Oilless Bushings Technical Data

Density		8.2g/cm3
Tensile Strength		>=755N/mm2
Anti-compact Tenacity		>=400~500KJ/m3
Hardness		>=200HB
Max Load Pressure		100N/mm2
Speed Limit		0.5m/s
PV value limit		1.65N/mm2.m/s
Friction coef	Oil Lubrication	0.03
	Dry Friction	0.16
Working temperature		-40~+300°C

Please check the type/dimensions/specifications in the Oil-Free Bushings - Graphite Bronze Bushing Products - Copper Alloy Straight, Standard series.

Oilless Bushing Specification

Oilless Bushing Type	Straight	Metal Type	High-Tensile Brass Alloy
Inner Dia. d(Ø)	50	Outer Dia. D(Ø)	62
Overall Length L(mm)	50	Max. Allowable PV Value Range(N/mm2•m/s)	1.1~2.0
Max. Allowable PV Value(N/mm2•m/s)	1.16	Maximum Allowable Load(N/mm2)	20.3
Maximum Allowable Velocity(m/s)	0.35	Mounting Hole Fits	H7
Operating Temperature Range(°C)	-40～150	Operating Temperature Range (Unlubricated) Min	-40
Operating Temperature Range (Unlubricated) Max	150	Operating Temperature Range (Regular) Min	-40
Operating Temperature Range (Regular) Max	200	-	-

Straight Oilless Bushings Service

Lubrication condition	Dry	periodic lubrication
Service temperature range ℃	－40～＋300	－40～＋150
Allowable max. pressure P N/mm｛2 kgf/cm2｝	29(150)｛296(1,530)｝
Allowable max. velocity V m/｛s m/min｝	0.50｛30｝	1.00｛60｝
Allowable max. PV value N/mm2・m/｛s kgf/cm2・m/min｝	1.65｛1,010｝	3.25｛1,990｝

*The values in parentheses are static bearing pressures, which are the bearing pressures in applications with no motion or very small
motion (≦0.0017m/s[0.1m/min]).

Oilless Bushing Machining Accuracy

Classes here are in the JIS standard. This product demonstrates satisfactory performance at the slide surface roughness of Rz6.3 to 12.5μm.

Oilless Bushing (Bushing Inner Diameter 50mm) Size Model

Oilless Bushing Size Tolerance

●Applicable to the rotation, oscillation, and reciprocating motion.
●Do not use this underwater.
●63mm I.D bushing can be used as an intermediate trunnion
bushing for hydraulic cylinders.

Graphite plugged bronze sleeve JDB1/2/3/4/5

Alloy materials

Model	JDB-1	JDB-2			JDB-3	JDB-4	JDB-5
Grade China Brands GB1776-87	ZCuZn25 AI6Fe3Mn3	ZCuSn6Zn6Pb3	ZCuAI10Fe3	ZCuSu10P1	Steel+ZCuSn6Zn6Pb3	HT250	GCr15
International ISO1338	GCuZn25 AI6Fe3Mn3	GCuSn6Zn6Pb3	GCuAI10Fe3	CuSn12	Steel+CuSn6Zn6Pb3Fe3Ni5	-	B1
Germany DIN	G-CuZn25 AI5	GB-CuSn5Zn5Pb5	GB-CuAI10Ni	GB-CuSn10	Steel+CuSn6Zn6Pb3Ni	-	100Cr6
Japanese JIS	HBsC4	BC6	AIBC3	BC3	BC6	FC250	SUJ2
United States ASTM/UNS	C86300	C83600	C95500	C90800	C83600	Class40	52100
British Standard	HTB2	LG2	AB1	PB4	LG2	-	-

Material alloy chemical composition

Chemical Elements	JDB-1	JDB-2			JDB-3	JDB-4	JDB-5
Cu ( % )	Rest	Rest			Rest	-	-
Sn ( % )	-	6	-	10	6	-	-
Zn ( % )	25	6	-	-	6	-	-
Ni ( % )	-	-	-	-	-	-	-
AI ( % )	6	-	10	-	-	-	-
Fe ( % )	3	-	3	-	-	Rest	Rest
Mn ( % )	3	-	-	-	-	0.905 - 1.3	0.20 - 0.40
Cr ( % )	-	-	-	-	-	-	1.30 - 1.65
C ( % )	-	-	-	-	-	2.5 - 4	0.95 - 1.05
Si ( % )	-	-	-	-	-	1.0 - 1.3	0.15 -0.35
Pb ( % )	-	3	-	-	3	-	-

Technical Parameters

Performance	JDB-1	JDB-2	JDB-3	JDB-4	JDB-5
Max.load P ( N/mm² )	100	60	70	60	250
Max.speed V ( m/s )	Dry0.4 oil5	2	2	0.5	0.1
Max.PV ( N/mm²·m/s )	3.8	0.5	0.6	0.8	2.5
Density ρ( g/cmsup3 )	8.0	8.0	7.6	7.3	7.8
Tensile strength ( N/mm² )	> 600	> 250	> 500	> 250	> 1500
Elongation ( % )	> 10	> 4	> 10	-	-
Hardness ( HB )	> 210	> 80	> 80	> 160	HRC> 55
Max.temp ( ℃ )	300	350	300	400	350
Friction coef. ( μ )	Oil lubrication: 0.03			Friction(dry): 0.16

Metric sized oilless bronze bushing

Oilless Bushing Size Sheet

I.D.		O.D.		Length L Tolerance －0.1 －0.3
φd	Tolerance	φD	Tolerance	8	10	12	15	16	19	20	25
6	＋0.022 ＋0.010	10	＋0.015 ＋0.006	061008	061010	061012
8	＋0.028 ＋0.013	12	＋0.018 ＋0.007	081208	081210	081212	081215
10	＋0.028 ＋0.013	14	＋0.018 ＋0.007	101408	101410	101412	101415			101420
12	＋0.034 ＋0.016	18	＋0.018 ＋0.007	121808	121810	121812	121815	121816	121819	121820	121825
13	＋0.034 ＋0.016	19	＋0.021 ＋0.008		131910	131912	131915			131920	131925
14	＋0.034 ＋0.016	20	＋0.021 ＋0.008		142010	142012	142015			142020	142025
15	＋0.034 ＋0.016	21	＋0.021 ＋0.008		152110	152112	152115	152116		152120	152125
16	＋0.034 ＋0.016	22	＋0.021 ＋0.008		162210	162212	162215	162216	162219	162220	162225
17	＋0.034 ＋0.016	23	＋0.021 ＋0.008				172315
18	＋0.034 ＋0.016	24	＋0.021 ＋0.008		182410	182412	182415	182416		182420	182425
19	＋0.041 ＋0.020	26	＋0.021 ＋0.008				192615			192620
20	＋0.041 ＋0.020	28	＋0.021 ＋0.008		202810	202812	202815	202816	202819	202820	202825
20	＋0.041 ＋0.020	30	＋0.021 ＋0.008		203010	203012	203015	203016		203020	203025
22	＋0.041 ＋0.020	32	＋0.025 ＋0.009			223212	223215			223220	223225
25	＋0.041 ＋0.020	33	＋0.025 ＋0.009			253312	253315	253316		253320	253325
25	＋0.041 ＋0.020	35	＋0.025 ＋0.009			253512	253515	253516		253520	253525
28	＋0.041 ＋0.020	38	＋0.025 ＋0.009							283820	283825
30	＋0.041 ＋0.020	38	＋0.025 ＋0.009			303812	303815			303820	303825
30	＋0.041 ＋0.020	40	＋0.025 ＋0.009			304012	304015			304020	304025
31.5	＋0.050 ＋0.025	40	＋0.025 ＋0.009
32	＋0.050 ＋0.025	42	＋0.025 ＋0.009							324220
35	＋0.050 ＋0.025	44	＋0.025 ＋0.009							354420	354425
35	＋0.050 ＋0.025	45	＋0.025 ＋0.009							354520	354525
38	＋0.050 ＋0.025	48	＋0.025 ＋0.009
40	＋0.050 ＋0.025	50	＋0.025 ＋0.009				405015			405020	405025
40	＋0.050 ＋0.025	55	＋0.030 ＋0.011				405515
45	＋0.050 ＋0.025	55	＋0.030 ＋0.011
45	＋0.050 ＋0.025	56	＋0.030 ＋0.011
45	＋0.050 ＋0.025	60	＋0.030 ＋0.011

*The I.D. tolerance after press fitting is for reference only.

(e.g.) I.D. is 50mm, O.D. is 62mm, and length is 50mm.

I.D.		O.D.		Length L Tolerance －0.1 －0.3
φd	Tolerance	φD	Tolerance	20	30	35	40	50	60	70	80
50	＋0.050 ＋0.025	60	＋0.030 ＋0.011	506020	506030	506035	506040	506050	506060	506070	506080
50	＋0.050 ＋0.025	62	＋0.030 ＋0.011		506230	506235	506240	506250	506260	506270	506280
50	＋0.050 ＋0.025	65	＋0.030 ＋0.011		506530		506540	506550	506560	506570	506580
55	＋0.060 ＋0.030	70	＋0.030 ＋0.011		557030	557035	557040	557050	557060	557070
60	＋0.060 ＋0.030	74	＋0.030 ＋0.011		607430	607435	607440	607450	607460	607470	607480
60	＋0.060 ＋0.030	75	＋0.030 ＋0.011		607530	607535	607540	607550	607560	607570	607580
63	＋0.060 ＋0.030	75	＋0.030 ＋0.011						637560	637570	637580
65	＋0.060 ＋0.030	80	＋0.030 ＋0.011				658040	658050	658060	658070	658080
70	＋0.060 ＋0.030	85	＋0.035 ＋0.013		708530	708535	708540	708550	708560	708570	708580
70	＋0.060 ＋0.030	90	＋0.035 ＋0.013					709050	709060	709070	709080
75	＋0.060 ＋0.030	90	＋0.035 ＋0.013					759050	759060	759070	759080
75	＋0.060 ＋0.030	95	＋0.035 ＋0.013						759560	759570	759580
80	＋0.060 ＋0.030	96	＋0.035 ＋0.013				809640	809650	809660	809670	809680
80	＋0.060 ＋0.030	100	＋0.035 ＋0.013				8010040	8010050	8010060	8010070	8010080
85	＋0.071 ＋0.036	100	＋0.035 ＋0.013						8510060		8510080
90	＋0.071 ＋0.036	110	＋0.035 ＋0.013					9011050	9011060		9011080
100	＋0.071 ＋0.036	120	＋0.035 ＋0.013					10012050	10012060	10012070	10012080
110	＋0.071 ＋0.036	130	＋0.040 ＋0.015					11013050		11013070	11013080
120	＋0.071 ＋0.036	140	＋0.040 ＋0.015							12014070	12014080
125	＋0.083 ＋0.043	145	＋0.040 ＋0.015
130	＋0.083 ＋0.043	150	＋0.040 ＋0.015								13015080
140	＋0.083 ＋0.043	160	＋0.040 ＋0.015
150	＋0.083 ＋0.043	170	＋0.040 ＋0.015								15017080
160	＋0.083 ＋0.043	180	＋0.040 ＋0.015								16018080
170	＋0.083 ＋0.043	190	＋0.046 ＋0.017
180	＋0.083 ＋0.043	200	＋0.046 ＋0.017
190	＋0.096 ＋0.050	210	＋0.046 ＋0.017
200	＋0.096 ＋0.050	230	＋0.046 ＋0.017

*The dimensional tolerances are the values measured at +25℃.

Oilless Bushing Avalibility

Metric oilless bushing and imperial oilless bronze bushing made to order: standard bushing forms in special dimensions, half-bushings, special shapes obtained by stamping or deep drawing, customized bushing designs

Oilless Bushing Typical Application

The product is widely used in continuous casting rolling machine, mining machinery, shipping machinery, turbine, injection machinery, auto mould
and so on.

1. Oilless bush use for high load low speed and self-lub. like dam gate and water gate bushes, hydraulic turbine bushes etc.
2. Oilless bushing use for high temp. such as iron and steel factory machines and so on.
3. Oilless graphite bronze bushing use for Automobile production, like assembly lines, press lines, conveyor lines and so on.
4. Oilless bronze bushing use for heavy duty machineries like steel rolling mills, injection machines, press dies etc.
5. Oilless bushes also use for chemical machines, food processing machines, paper mills, textile machines etc.

Oilless Bushing Used In Injection Molding Machine

● Oilless bushes for toggle link

Oilless Bushings Application For Moulding

-Injection Moulding

1. Guide Bushes

2. Ejector Guide Bushes

3. Guide Rail

4. Guide Block

5. Lower Plate

6. Guide Bushes

7. Formwork Bushes

-Cam Flange Die

1.Wear Plate

2.Cam Stroke Plate

3.Cam Upper Plate

4.Cam Side Block

5. Cam Side Plate

6.Cam Positive Return Plate

7. Guide Post Bushes

8. Cam Stroke Plate

Viiplus Oilless Bronze Bushing Used In Many Application

Whatever the bronze oilless bushing material & specification, whatever the oilless bush standard shape or size, if it's physically possible, we can make it.

Viiplus is one of the most experienced oilless bushing suppliers, if you want to download the oilless bush catalogue, Contact Us Now!

Product Tags:

B50 Bronze Case Bearing Bushings

      

Graphite Nests Bronze Bearing Bushing

      

Graphite Nests Bearing Bushings

      

B50 Bronze Case With Graphite Nests Bearing Bushing Oilless Images