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David from Canada

Our company import the bronze gleitlager from viiplus china,viiplus professional team makes sure customs clearance is always smooth. They provide an accurate bronze bushing classification, handle all the paperwork,We have received the self-lubricating bronze bushings. They look well done and the high quality.
Valerie from California

We import the bronze gleitlager from China to under the incoterm FOB shanghai, sometimes by Air. viiplus is a very good bronze gleitlager supplier, they are very professional and patient, after we inform the new order, they will manufacturer bronze gleitlager in time and give us the schedule , and then we just need to receive the bronze parts
Daisy From Germany

The best surface finishes for Sleeve Bearing, tighter concentricity, and bronze bushings material uniformity. The good supplier of standard inch and metric sleeve bearings and bushings from china.

Contact Person : Tiffany

Phone Number : +86 18258386757

WhatsApp : +8618258386757

EP Engineering Self Lubricating Plastic Plain Bearings, high speed, PTFE bearing

Name: EP Engineering Self Lubricating Plastic Plain Bearings, high speed, PTFE bearing
Brand: VIIPLUS
SKU: EP Plastic self-lubricating bearings
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (181 reviews)
ISBN: 13034833

Place of Origin	CHINESE
Brand Name	VIIPLUS
Certification	ISO9001
Model Number	EP Plastic self-lubricating bearings
Minimum Order Quantity	NEGOTIABLE
Price	CONTACT US
Packaging Details	EXPORT CARTONS
Delivery Time	2-4 weeks
Payment Terms	T/T, Western Union
Supply Ability	CNC Bronze Bearings Online • Custom Bushings Manufacturers • Sliding Bearings Suppliers

Product Details

MATERIAL	High-performance Engineering Plastic	SIZE	CUSTOMIZED
TYPE	EP Plastic Self-lubricating Bearings	APPLICATIOPN	Manufacturing Plant, Machinery Repair Shops, Construction
Bearing Bushing Factory Price	Tiffany@viiplus.com	Self-lubricating Bearing Bushing Manufacturer	Https://www.viiplus.com/
High Light	Plastic self lubricating bearings , self lubricating Plastic bearings

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Product Description

EP Plastic Self-lubricating Bearings | Plastic Bushings Supplier

EP Plastic self-lubricating bearings for industrial applications. Your global partner for sliding bearing technology. Order Bushings Online. Range Of Products. View www.viiplus.com; Plain Bearing types available in standard dimensions: Cylindrical bushes, Flanged bushes, Thrust washers, Flanged washers, Sliding plates

EP series of high performance technical plastic polymer bearings as a base material, through the modification of the technology of polymeric materials in high resistance fibers and a solid improvement of its wear resistance integrated with internal grease; high resistance to the network structure reinforced with material fibers, the special solid composite grease allows EP series plastic bearings with excellent self-lubricating properties and wear resistance. Whether it's high-end requirements in the automotive industry.

PLASTIC SELF-LUBRICATING BUSHINGS

Material property sheet

Common Capability	Unit	EPT	EPG	EPH	EPX	EPJ	EPS
Density	g/cm³	1.46	1.46	1.65		1.49	1.24
Color		Black gray	Dark grey	Grey	Black	Yellow	Beige
Max.water absorption,23℃/ 50%	[% weight]	0.2	0.7	0.1		0.3	2.02
Max.water absorption	[% weight]	＜1.2	＜4	＜0.3	＜0.5	＜1.3	＜0.1
Dynamic friction /steel	μ	0.05-0.15	0.08-0.18	0.07-0.20	0.09-0.27	0.06-0.18	0.05-0.15
Max.PV(dry)	MPa•m/s	0.4	0.5	1.37	1.32	0.34	0.4
Mechanical behavior
E-module	MPa	2,300	7,800	12,500	8,100	2,400	830
Tensile strength,20℃	MPa	80	200	175	170	73	18
Compressive strength	MPa	65	80	90	150	35	10
Max.static pressure of the surface,20℃	MPa	35	80	150	90	20	10
Shore D hardness		70	112	87	85	74	73
Physical and thermal properties
Continuous work tempreature	℃	+80	+130	+200	+250	+90	+260
short-time work tempreature	℃	+120	+220	+240	+315	+120	+310
Minimum operating temperature	℃	-40	-40	-40	-100	-50	-200
Thermal conductivity	W/m•K	0.2	0.25	0.60	0.60	0.25	0.24
Max.water absorption,23℃	K^-1•10^-5	7	9	4	5	10	12
Conductivity
Volume resisticity	Ωcm	＞10¹²	＞10¹³	＜10⁴	＜10⁵	＞10¹³	＞10¹⁵
Surface resisticity	Ω	＞10¹⁵	＞10¹¹	＜10⁵	＜10³	＞10¹²	＞10¹⁵

EP Material structural characteristics

EP series of materials has excellent self-lubricating and wear resistance is mainly engineers take full advantage of the self-lubricating material modification technology, high-performance engineering plastics used in high-strength fiber to improve the material load and special grease reduced The friction coefficient of the material (See below), thereby enhancing the comprehensive wear resistance of the material to extend the service life of the bearing. High-performance engineering plastics as the base material mainly as wear-resistant carrier; Reinforced fiber to improve the bearing in the bearing and impact resistance; Special grease reduces the coefficient of friction of the bearing from the role of lubrication.

EP Plastic self-lubricating bearings

EP series friction coefficient

EP series of self-lubricating properties of plastic bearings by modifying the technology of the base material to add solid grease and functional fibers to be reached, the coefficient of friction through solid grease is reduced, while the coefficient of friction is also subject to the workload, the speed and surface roughness of the axis. The coefficient of friction generally decreases with increasing workload and increases with increasing operating speed.

Bearing wear

Any self-lubricating bearing as long as a load in the work, the bearing will produce subtle wear. The same is true for the EP series bearings, where the grease gradually leaches out and gradually fills the friction surface and transfers to the counter shaft surface during the start-up phase . When the working area is filled with grease The formation of a thin layer of lubricating isolation film, this time the initial bearing wear is almost over, in the latter part of the long work of the bearing wear rate greatly reduced and more stable .

plastic self lubrication bushings

Bearing load noun construct

Load calculation method

◇ straight sets, flanging products
P= F / d×L (N/mm²)
F=Bearing capacity (N)
d=Shaft diameter (mm²)
L=Shaft diameter length(mm²)
◇ Thrust washer
P= 4F / π(D2-d2) (N/mm²)
F=Gasket bearing capacityd (N)
D=Outside diameter of gasket OD(mm²)
d=Gasket inner diameter ID(mm²)
The actual bearing surface pressure (Pact) of the bearing is larger than the theoretical value (Pmean) due to the influence of the clearance, the material strength, the internal oil groove,.

Maximum surface static load

Bearing the actual work dynamic load is often slightly smaller than the data sheet in the recommended maximum surface static load, the axis and the bearing with the gap is always there, so the actual bearing bearing area is not the projection area of the bearing, the size of the size of the axis with the tolerance Decision. This value is suitable for shaft standstill or operating speed less than 0.01m / s, higher load in the running time is very short (short time refers to within 3 minutes).

load and temperature, speed relationship

The bearing load will increase with the bearing operating temperature gradually reduced, when transported The load carrying capacity of the bearing will drastically decrease after the line temperature exceeds the maximum service temperature . Bearing load will be with the speed of bearing speed up and gradually reduce, when transported Line speed will lead to the friction bearing temperature gradually increased, while the load will be With the bearing temperature rising gradually decreased.

Line speed calculation formula

V=π×d×n / 1000×60 (m/s)
d=Shaft (mm²)
n=Rpm
◇ Oscillationg motion
V= π×d×C×θ / 1000×360×60
d=Shaft (mm²)
C=Frequency
θ=Oscillating angle
◇ Reciprocating motion
V=π×d×n / 1000×60 (m/s)
S=Stoke distance (m)
C=Frequency

Bearing speed

The maximum permissible speed for the EP series bearings is shown in Fig. These values Is the limit load achieved when the bearing load is very small, the actual use of these speeds Degree is very difficult to achieve, because the bearing in the work inevitably bear labor As the load, when the bearing load increases when the allowable speed will be reduced. As the bearing speed and bearing operating temperature is inversely proportional to the relationship, so the bearings The maximum speed allowed by the different operating modes is also different.

Maximum bearing speed

Material	Rotate	Swing	Straight line
EPT	0.1	0.7	3.0
EPG	1.0	0.7	4.0
EPH	1.0	0.7	3.0
EPX	1.5	1.1	5.0
EPJ	1.5	1.1	8.0
EPS	2.0	1.4	5.0

Bearing temperature

EP series bearings are limited to the minimum and maximum operating temperature. Minimum Temperature refers to the critical temperature at which the bearing material will become brittle , the highest temperature used Temperature is the bearing wear resistance will not change the critical temperature, short-term operation of the most High temperature is the critical temperature at which the bearing material becomes soft . Such as bearings Often alternating in high temperature and low temperature, the bearing may be shedding phenomenon, So at this time must rely on the auxiliary device to ensure the normal operation of the bearing.

Minimum operating temperature of bearings

Material	Lowest temperature
EPT	-40
EPG	-40
EPH	-40
EPX	-100
EPJ	-50
EPS	-200

Provide the starting thermometer for the positioning mechanism

Material	Starting temperature
EPT	-40
EPG	-40
EPH	-40
EPX	-100
EPJ	-50
EPS	-200

Bearing the PV value

PV value is the bearing in a certain load and linear velocity of the product value, bearing Of the PV value is to evaluate the sliding bearing performance is an important indicator. Actual PV value And the service life of the bearing is inversely proportional to the relationship (Figure 12), so the proposed design as possible A relatively low PV value can be used to ensure a longer service life of the bearing.

PVPerm.=(K1×π×λk×△T / μ×s) + (K2×π×λs×△T / μ×b1×2) ×y1×y2×10-3
Here:
K1, K2 = heat dissipation factor (K1 = 0.5, K2 = 0.042)
S = wall thickness of the bearing (unit: mm)
B1 = length of bearing (unit: mm)
Μ = coefficient of friction
Λs = thermal conductivity of the axis
Λk = thermal conductivity of the bearing
△ T = (Ta - Tu)
Tu = ambient temperature
Ta = maximum operating temperature
Y1 = correction factor for intermittent operation
Y2 = lubrication operation correction factor

Bearing wear

As the bearing wear resistance by many factors, it is difficult to accurately Describe the wear or life of the bearing. Through numerous tests that affect the bearing Wear resistance or life of the factors: load, speed, movement, shaft material And roughness, ambient temperature and dust, external lubrication media category and so on. Bearing wear resistance generally increases with the load, speed, temperature and gradually decreased Low, when there is external lubrication medium, the bearing wear resistance will be doubled. Hengxing recommended the use of the shaft roughness Ra0.2 - Ra0.8, the shaft is too rough or Too smooth will lead to increased wear and tear, the shaft is too rough as scraper scratch Bearing the friction surface, the shaft is too smooth in the friction surface and the bearing surface of the glue Leading to increased wear. The EP series bearings for the shaft material are not particularly limited, but are not limited Kind of shaft material on the impact of bearing wear is different, it is recommended to use more Hengxing For the universal surface hard chrome plated shaft material, the hardness of the shaft is also not limited, But Hengxing recommended the use of HRC35 or more shaft material, in order to avoid bearing the initial work For the wear of the stage shaft.

Bearing chemical resistance

EP series of plastic bearings are often used for chemical media contact occasions, at this time bearing anti-chemical corrosion performance is particularly important. As the chemical medium can be Can lead to changes in the composition of the bearing material, this change depends on the type of chemical medium, temperature, exposure time, and bearing load and movement Way, and sometimes the chemical medium as an effective lubricant which will extend the service life of the bearing.

EP PALSTIC BUSHING Series Specification Table

Metric Cylindrical Bushes

Plastic bushing size chart
Size and Specification table of straight sleeve series (for all sizes of different materials)
model	d	tolerance	D	L
EP PLASTIC BUSHING-0304-03	3	+0.014/+0.054	4.5	3
EP PLASTIC BUSHING-0304-06	3	+0.014/+0.054	4.5	6
EP PLASTIC BUSHING-0305-05	3	+0.014/+0.054	5.5	5
EP PLASTIC BUSHING-0405-06	4	+0.020/+0.068	5.5	6
EP PLASTIC BUSHING-0406-06	4	+0.020/+0.068	6	6
EP PLASTIC BUSHING-0507-05	5	+0.020/+0.068	7	5
EP PLASTIC BUSHING-0507-08	5	+0.020/+0.068	7	8
EP PLASTIC BUSHING-0507-10	5	+0.020/+0.068	7	10
EP PLASTIC BUSHING-0507-18	5	+0.020/+0.068	7	18
EP PLASTIC BUSHING-0608-04	6	+0.020/+0.068	8	4
EP PLASTIC BUSHING-0608-06	6	+0.020/+0.068	8	6
EP PLASTIC BUSHING-0608-08	6	+0.020/+0.068	8	8
EP PLASTIC BUSHING-0608-10	6	+0.020/+0.068	8	10
EP PLASTIC BUSHING-0608-11	6	+0.020/4-0.068	8	11
EP PLASTIC BUSHING-0810-05	8	+0.025/+0.083	10	5
EP PLASTIC BUSHING-0810-06	8	+0.025/4-0.083	10	6
EP PLASTIC BUSHING-0810-08	8	+0.025/+0.083	10	8
EP PLASTIC BUSHING-0810-10	8	+0.025/4-0.083	10	10
EP PLASTIC BUSHING-0810-11	8	+0.025/+0.083	10	11
EP PLASTIC BUSHING-0810-12	8	+0.025/+0.083	10	12
EP PLASTIC BUSHING-0810-15	8	+0.025/+0.083	10	15
EP PLASTIC BUSHING-0811-10	8	+0.025/+0.083	11	10
EP PLASTIC BUSHING-0812-10	8	+0.025/+0.083	12	10
EP PLASTIC BUSHING-0911-06	9	+0.025/4-0.083	11	6
EP PLASTIC BUSHING-1012-04	10	+0.025/+0.083	12	4
EP PLASTIC BUSHING-1012-05	10	+0.025/+0.083	12	5
EP PLASTIC BUSHING-1012-06	10	+0.025/+0.083	12	6
EP PLASTIC BUSHING-1012-08	10	+0.025/+0.083	12	8
EP PLASTIC BUSHING-1012-10	10	+0.025/+0.083	12	10
EP PLASTIC BUSHING-1012-12	10	+0.025/+0.083	12	12
EP PLASTIC BUSHING-1012-15	10	+0.025/+0.083	12	15
EP PLASTIC BUSHING-1014-10	10	+0.013/+0.071	14	10
EP PLASTIC BUSHING-1014-16	10	+0.025/+0.083	14	16
EP PLASTIC BUSHING-1012-18	10	+0.025/+0.083	12	18
EP PLASTIC BUSHING-1012-20	10	+0.025/+0.083	12	20
EP PLASTIC BUSHING-1214-06	12	+0.032/+0.102	14	6
EP PLASTIC BUSHING-1214-08	12	+0.032/+0.102	14	8
EP PLASTIC BUSHING-1214-10	12	+0.032/+0.102	14	10
EP PLASTIC BUSHING-1214-12	12	+0.032/+0.102	14	12
EP PLASTIC BUSHING-1214-15	12	+0.032/+0.102	14	15
EP PLASTIC BUSHING-1214-20	12	+0.032/+0.102	14	20

Plastic bushing size chart
Size and Specification table of straight sleeve series (for all sizes of different materials)
model	id	tolerance	D	L
EP PLASTIC BUSHING-1820-20	18	+0.032/+0.102	20	20
EP PLASTIC BUSHING-1820-25	18	+0.032/+0.102	20	25
EP PLASTIC BUSHING-2022-12	20	+0.040/+0.124	22	12
EP PLASTIC BUSHING-2022-15	20	+0.040/+0.124	22	15
EP PLASTIC BUSHING-2022-28	20	+0.040/+0.124	22	28
EP PLASTIC BUSHING-2023-10	20	+0.040/+0.124	23	10
EP PLASTIC BUSHING-2023-15	20	+0.040/+0J24	23	15
EP PLASTIC BUSHING-2023-20	20	+0.040/+0.124	23	20
EP PLASTIC BUSHING-2023-23	20	+0.040/+0.124	23	23
EP PLASTIC BUSHING-2023-25	20	+0.040/+0.124	23	25
EP PLASTIC BUSHING-2023-30	20	+0.040/+0.124	23	30
EP PLASTIC BUSHING-2025-15S	20	+0.020/+0.104	25	15
EP PLASTIC BUSHING-2125-32	21	+0.040/+0.124	25	32
EP PLASTIC BUSHING-2225-15	22	+0.040/+0.124	25	15
EP PLASTIC BUSHING-2225-20	22	+0.040/+0.124	25	20
EP PLASTIC BUSHING-2225-25	22	+0.040/+0.124	25	25
EP PLASTIC BUSHING-2225-30	22	+0.040/+0J24	25	30
EP PLASTIC BUSHING-2528-10	25	+0.040/+0.124	28	10
EP PLASTIC BUSHING-2528-12	25	+0.040/+0.124	28	12
EP PLASTIC BUSHING-2528-15	25	+0.040/+0.124	28	15
EP PLASTIC BUSHING-2528-20	25	+0.040/+0.124	28	20
EP PLASTIC BUSHING-2528-25	25	+0.040/+0.124	28	25
EP PLASTIC BUSHING-2528-30	25	+0.040/+0.124	28	30
EP PLASTIC BUSHING-2529-25	25	+0.040/+0.124	29	25
EP PLASTIC BUSHING-2530-25S	25	+0.020/+0.104	30	25
EP PLASTIC BUSHING-2832-20	28	+0.040/+0.124	32	20
EP PLASTIC BUSHING-2832-25	28	+0.040/+0J24	32	25
EP PLASTIC BUSHING-2832-30	28	+0.040/+0.124	32	30
EP PLASTIC BUSHING-3034-20	30	+0.040/+0.124	34	20
EP PLASTIC BUSHING-3034-25	30	+0.040/+0.124	34	25
EP PLASTIC BUSHING-3034-30	30	+0.040/+0.124	34	30
EP PLASTIC BUSHING-3034-40	32	+0.040/+0.124	34	40
EP PLASTIC BUSHING 3236-20	32	+0.050/+0.150	36	20
EP PLASTIC BUSHING-3236-23	32	+0.050/+0.150	36	23
EP PLASTIC BUSHING-3236-25	32	+0.050/+0.150	36	25
EP PLASTIC BUSHING-3236-30	32	+0.050/+0.150	36	30
EP PLASTIC BUSHING-3236-40	32	+0.050/+0J50	36	40
EP PLASTIC BUSHING-3539-15	35	+0.050/+0.150	39	15
EP PLASTIC BUSHING-3539-20	35	+0.050/+0.150	39	20
EP PLASTIC BUSHING-3539-25	35	+0.050/+0.150	39	25
EP PLASTIC BUSHING-3539-30	35	+0.050/+0.150	39	30

SELF-LUBRICATING BEARING

Plastic bushing size chart
Size and Specification table of straight sleeve series (for all sizes of different materials)
EP PLASTIC BUSHING-1214-25	12	+0.032/+0.102	14	25
EP PLASTIC BUSHING-1215-20	12	+0.032/+0.102	15	20
EP PLASTIC BUSHING-1315-07	13	+0.032/+0.102	15	7
EP PLASTIC BUSHING-1315-10	13	+0.032/+0.102	15	10
EP PLASTIC BUSHING-1416-08	14	+0.032/+0.102	16	8
EP PLASTIC BUSHING-1416-10	14	+0.032/+0.102	16	10
EP PLASTIC BUSHING-1416-15	14	+0.032/+0.102	16	15
EP PLASTIC BUSHING-1416-20	14	+0.032/+0.102	16	20
EP PLASTIC BUSHING-1416-25	14	+0.032/+0.102	16	25
EP PLASTIC BUSHING-1517-10	15	+0.032/+0.102	17	10
EP PLASTIC BUSHING-1517-15	15	+0.032/+0.102	17	15
EP PLASTIC BUSHING-1517-17	15	+0.032/+0.102	17	17
EP PLASTIC BUSHING-1517-20	15	+0.032/+0.102	17	20
EP PLASTIC BUSHING-1517-25	15	+0.032/+0.102	17	25
EP PLASTIC BUSHING-1618-10	16	+0.032/+0.102	18	10
EP PLASTIC BUSHING-1618-12	16	+0.032/+0.102	18	12
EP PLASTIC BUSHING-1618-15	16	+0.032/+0.102	18	15
EP PLASTIC BUSHING-1618-20	16	+0.032/+0.102	18	20
EP PLASTIC BUSHING-1616-25	16	+0.032/+0.102	18	25
EP PLASTIC BUSHING-1620-16S	16	+0.016/+0.086	20	16
EP PLASTIC BUSHING-1820-15	18	+0.032/+0.102	20	15

Plastic bushing size chart
Size and Specification table of straight sleeve series (for all sizes of different materials)
EP PLASTIC BUSHING-3539-40	35	+0.050/+0.150	39	40
EP PLASTIC BUSHING-359-50	35	+0.050/+0.150	39	50
EP PLASTIC BUSHING-4044-20	40	+0.050/+0.150	44	20
EP PLASTIC BUSHING-4044-30	40	+0.050/+0.150	44	30
EP PLASTIC BUSHING-4044-40	40	+0.050/+0.150	44	40
EP PLASTIC BUSHING-4044-50	40	+0.050/+0.150	44	50
EP PLASTIC BUSHING-4550-30	45	+0.050/+0.150	50	30
EP PLASTIC BUSHING-4550-40	45	+0.025/+0.125	50	40
EP PLASTIC BUSHING-4550-50	45	+0.050/+0.150	50	50
EP PLASTIC BUSHING-5055-20	50	+0.050/+0.150	55	20
EP PLASTIC BUSHING-5055-30	50	+0.050/+0.150	55	30
EP PLASTIC BUSHING-5055-40	50	+0.050/+0.150	55	40
EP PLASTIC BUSHING-5055-50	50	+0.050/+0.150	55	50
EP PLASTIC BUSHING-8590-40	85	+0.036/+0.176	90	40

•Tolerance drafter being pressed into housing H7(ISO3547-1)

Recommend fitting tolerance

Housing: H7
Shaft: H9

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Tags:

EP Engineering Self Lubricating Plastic Plain Bearings, high speed, PTFE bearing

Plastic self lubricating bearings

self lubricating Plastic bearings

EP Plastic Self-lubricating Bearings | Plastic Bushings Supplier

Material property sheet

EP Material structural characteristics

EP series friction coefficient

Bearing wear

Bearing load noun construct

Load calculation method

Maximum surface static load

load and temperature, speed relationship

Line speed calculation formula

Bearing speed

Bearing temperature

Minimum operating temperature of bearings

Provide the starting thermometer for the positioning mechanism

Bearing the PV value

Bearing wear

Bearing chemical resistance

EP PALSTIC BUSHING Series Specification Table

Metric Cylindrical Bushes

SELF-LUBRICATING BEARING

Recommend fitting tolerance