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IR hydraulic pressure

Microstructure of Materials

1. Polytetrafluoroethylene and lipophilic fiber mixture 0.01-0.03mm
2. Spherical bronze powder 0.2-0.3mm
3, steel back 0.7-2.3mm
4. Electroplating layer: the thickness of tin plating layer is 0.005mm, or the thickness of copper plating layer is 0.008mm.

Product Description

IR hydraulic special bearing is a new type of material designed on the basis of IUP combined with the working principle of oil cylinder and shock absorber. It is more wear-resistant under the condition of no oil. In addition to its IUP advantages, this product is especially suitable for frequent reciprocating large lateral force occasions. Its performance is similar to that of foreign DP4. At present, this product is gradually replacing IUP products and is suitable for automobile, motorcycle shock absorber and various hydraulic cylinders.

technical parameters

Maximum bearing pressure: 140N/mm2
Applicable temperature range:-195~280 degrees Celsius
Maximum sliding speed: 3 m/s
Friction coefficient: 0.04~0.20
Maximum allowable PV value (dry):3.8N/mm2 .m/s
Maximum allowable PV value (oil):50N/mm2 .m/s

application features:

1. The mixture of PTFE and lipophilic fibers can form a good transfer film to protect the grinding shaft during movement.
2. Good wear resistance and low friction coefficient.
3. Good running performance and no shaft biting phenomenon.
4. It can be used in rotating, rocking and reciprocating motion.
5. Because it does not contain lead, it can be used in food machinery, medical machinery and other green environmental protection equipment.
6. In addition to the characteristics of IUP, the product is especially suitable for occasions with frequent reciprocating motion and large lateral force, suitable for automobiles,
Motorcycle shock absorber and various hydraulic cylinders and other fields.

IR Series

bearing model	in air	in vacuum	water	vapor	weak acid		strong acid	in alkaline solution
IR						No	No

IR End Face

Model	test time	test conditions			friction coefficient	final temperature (degrees Celsius)	final wear (mm)
Model	test time	lubrication	speed	pressure	friction coefficient	final temperature (degrees Celsius)	final wear (mm)
IR	3hr	dry	0.4m/s	3.5N/mm2	0.175	98	0.012
IR	3hr	oil	0.4m/s	3.5N/mm2	0.054	46	0.004

IR Standard Tolerance Size Table

Unit:mm

matching shaft diameter tolerance

matching seat hole tolerance
(H7)

bearing outer diameter tolerance

bearing inner diameter tolerance after pressing into the seat hole

Wall
thick-
ness

f₁

f₂

L⁰_-0.40

(^{d≤φ30 L -0.3}
_{d>φ30 L -0.4})

6^{-0.013

_-0.028}

8^0.015

8^{0.055

_0.025}

5.990
6.055

0.980
1.005

0.6

0.3

0606

0608

0610

8^{-0.013

_-0.028}

10^0.015

10^{0.055

_0.025}

7.990
8.055

0806

0808

0810

08012

08015

10^{-0.016

_-0.034}

12^0.018

12^{0.065

_0.030}

9.990
10.058

1006

1008

1010

1012

1015

1020

12^{-0.016

_-0.034}

14^0.018

14^{0.065

_0.030}

11.990
12.058

1206

1208

1210

1212

1215

1220

1225

13^{-0.016

_-0.034}

15^0.018

15^{0.065

_0.030}

12.990
13.058

1310

1320

14^{-0.016

_-0.034}

16^0.018

16^{0.065

_0.030}

13.990
14.058

1410

1412

1415

1420

1425

15^{-0.016

_-0.034}

17^0.018

17^{0.065

_0.030}

14.990
15.058

1510

1512

1515

1520

1525

16^{-0.016

_-0.034}

18^0.018

18^{0.065

_0.030}

15.990
16.058

1610

1612

1615

1620

1625

17^{-0.016

_-0.034}

19^0.021

19^{0.075

_0.035}

16.990
17.061

1710

1712

1720

18^{-0.016

_-0.034}

20^0.021

20^{0.075

_0.035}

17.990
18.061

1810

1812

1815

1820

1825

20^{-0.020

_-0.041}

23^0.021

23^{0.075

_0.035}

19.990
20.071

1.475
1.505

0.6

0.4

2010

2012

2015

2020

2025

2030

22^{-0.020

_-0.041}

25^0.021

25^{0.075

_0.035}

21.990
22.071

2210

2212

2215

2220

2225

2230

24^{-0.020

_-0.041}

27^0.021

27^{0.075

_0.035}

23.990
24.071

2415

2420

2425

2430

25^{-0.020

_-0.041}

28^0.021

28^{0.075

_0.035}

24.990
25.071

2510

2512

2515

2520

2525

2530

2540

2550

28^{-0.020

_-0.041}

32^0.025

32^{0.085

_0.045}

27.990
28.085

1.970
2.005

1.2

0.4

2815

2820

2825

2830

2840

30^{-0.020

_-0.041}

34^0.025

34^{0.085

_0.045}

29.990
30.285

3012

3015

3020

3025

3030

3040

32^{-0.025

_-0.050}

36^0.025

36^{0.085

_0.045}

31.990
32.085

3220

3230

3240

35^{-0.025

_-0.050}

39^0.025

39^{0.085

_0.045}

34.990
35.085

3512

3515

3520

3525

3530

3540

3550

38^{-0.025

_-0.050}

42^0.025

42^{0.085

_0.045}

37.990
38.085

3815

3830

3840

40^{-0.025

_-0.050}

44^0.025

44^{0.085

_0.045}

39.990
40.085

4012

4020

4025

4030

4040

4050

matching shaft diameter tolerance

matching seat hole tolerance
(H7)

bearing outer diameter tolerance

bearing inner diameter tolerance after pressing into the seat hole

wall thickness

f₁

f₂

L⁰_-0.40

100

115

45^{-0.025

_-0.050}

50^0.025

50^{0.085

_0.045}

44.990
45.105

2.460
2.505

1.8

0.6

4520

4525

4530

4540

4550

50^{-0.025

_-0.050}

55^0.030

55^{0.100

_0.055}

49.990
50.110

5020

5030

5040

5050

5060

55^{-0.030

_-0.060}

60^0.030

60^{0.100

_0.055}

54.990
55.110

5530

5540

5550

5560

60^{-0.030

_-0.060}

65^0.030

65^{0.100

_0.055}

59.990
60.110

6030

6040

6050

6060

6070

65^{-0.030

_-0.060}

70^0.030

70^{0.100

_0.055}

64.990
65.110

6530

6540

6550

6560

6570

70^{-0.030

_-0.060}

75^0.030

75^{0.100

_0.055}

69.990
70.110

7040

7050

7060

7070

7080

75^{-0.030

_-0.060}

80^0.030

80^{0.100

_0.055}

74.990
75.110

7530

7540

7550

7560

7570

7580

80_-0.030

85^0.035

85^{0.120

_0.070}

80.020
80.155

2.440
2.490

1.8

0.6

8040

8050

8060

8070

8080

80100

85_-0.035

90^0.035

90^{0.120

_0.070}

85.020
85.155

8540

8560

8580

85100

90_-0.035

95^0.035

95^{0.120

_0.070}

90.020
90.155

9040

9050

9060

9080

90100

95_-0.035

100^0.035

100^{0.120

_0.070}

95.020
95.155

9550

9560

9580

95100

100_-0.035

105^0.035

105^{0.120

_0.070}

100.020

100.155

10050

10060

10080

100115

105_-0.035

110^0.035

110^{0.120

_0.070}

105.020
105.155

10560

10580

105115

110_-0.035

115^0.035

115^{0.120

_0.070}

110.020
110.155

11060

11080

110115

120_-0.035

125^0.040

125^{0.170

_0.100}

120.070
120.210

2.415
2.465

1.8

0.6

12060

12080

112100

125_-0.040

130^0.040

130^{0.170

_0.100}

125.070
125.210

12560

125100

125115

130_-0.040

135^0.040

135^{0.170

_0.100}

130.070
130.210

13060

13080

130100

140_-0.040

145^0.040

145^{0.170

_0.100}

140.070
140.210

14060

14080

140100

150_-0.040

155^0.040

155^{0.170

_0.100}

150.070
150.210

15060

15080

150100

160_-0.040

165^0.040

165^{0.170

_0.100}

160.070
160.210

16060

16080

160100

160115

180_-0.040

185^0.046

185^{0.210

_0.130}

180.070
180.216

2.415
2.465

1.8

0.6

18080

180100

190_-0.046

195^0.046

195^{0.210

_0.130}

190.070
190.216

19080

190100

200_-0.046

205^0.046

205^{0.210

_0.130}

200.070
200.216

20060

20080

200100

220_-0.046

225^0.046

225^{0.210

_0.130}

220.070

220.216

22080

220100

250_-0.046

255^0.052

255^{0.260

_0.170}

250.070

250.222

25080

250100

260_-0.052

265^0.052

265^{0.260

_0.170}

260.070
260.222

26080

260100

280_-0.052

285^0.052

285^{0.260

_0.170}

280.070

280.222

28080

280100

300_-0.052

305^0.052

305^{0.260

_0.170}

300.070

300.222

30080

300100

- Contact
- infey@apm-oillessbearing.com
- christy@apm-oillessbearing.com
- mob. +86 181 5730 0019
- tel. +86 573 8477 1238
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