INA Bearings-SSHB China

Waviness can produce vibration at frequencies up to approximately 300 times rotational speed but is usually predominant at frequencies below 60 times rotational speed.

The upper limit is attributed to the finite area of the rolling element raceway contacts which average out the shorter wavelength features.

INA Cylindrical roller bearings SL181864-E details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 15 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 320 mm D 400 mm B 38 mm D₁ 371,5 mm d₁ 344,5 mm E 381 mm r_min 2,1 mm s 3 mm Axial displacement m 10,36 kg Mass C_r 470000 N Basic dynamic load rating, radial C_0r 900000 N Basic static load rating, radial C_ur 90000 N Fatigue limit load, radial n_G 910 1/min Limiting speed n_B 620 1/min Reference speed

For longer wavelength surface features, peak curvatures are low compared with that of the Hertzian contacts and rollingmotion is continuous with the rolling elements following the surface contours.

The relationship between surface geometry and vibration level is complex being dependent upon the bearing and contact geometry as well as conditions of load and speed.

INA Cylindrical roller bearings SL181860-E details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 16 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 300 mm D 380 mm B 38 mm D₁ 350,5 mm d₁ 323,5 mm E 360 mm r_min 2,1 mm s 3 mm Axial displacement m 9,79 kg Mass C_r 455000 N Basic dynamic load rating, radial C_0r 840000 N Basic static load rating, radial C_ur 86000 N Fatigue limit load, radial n_G 960 1/min Limiting speed n_B 680 1/min Reference speed

Surface roughness produces vibration predominantly at frequencies above 60 times the rotational speed of the bearing, thus the high frequency part of the spectrum usually appears as a series of resonances.

INA Cylindrical roller bearings SL181856-E details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 16 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 280 mm D 350 mm B 33 mm D₁ 327 mm d₁ 304 mm E 335 mm r_min 2 mm s 2,5 mm Axial displacement m 6,89 kg Mass C_r 355000 N Basic dynamic load rating, radial C_0r 670000 N Basic static load rating, radial C_ur 69000 N Fatigue limit load, radial n_G 1030 1/min Limiting speed n_B 730 1/min Reference speed

Surface roughness is a significant source of vibration when its level is high compared with the lubricant film thicknessgenerated between the rolling element-raceway contacts.

Under this condition surface asperities can break through the lubricant film and interact with the opposing surface, resulting in metal-to-metal contact.

The resulting vibration consists of a random sequence of small impulses which excite all the natural modes of the bearing andsupporting structure.

INA Cylindrical roller bearings SL181852-E details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 18 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 260 mm D 320 mm B 28 mm D₁ 301,5 mm d₁ 281 mm E 308 mm r_min 2 mm s 2 mm Axial displacement m 4,61 kg Mass C_r 275000 N Basic dynamic load rating, radial C_0r 530000 N Basic static load rating, radial C_ur 54000 N Fatigue limit load, radial n_G 1110 1/min Limiting speed n_B 790 1/min Reference speed

Running clearance should not be confused with radial internal clearance (RIC), the former normally being lower than the RIC due to interference fit of the rings and differential thermal expansion of the inner and outer ringsduring operation.

Variable compliance vibration levels can be higher than those produced by roughness and waviness of the rolling surfaces,however, in applications where vibration is critical it can be reduced to a negligible level by using ball bearings with the correct level of axial preload.

INA Cylindrical roller bearings SL181848-E details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 20 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 240 mm D 300 mm B 28 mm D₁ 281 mm d₁ 260,5 mm E 287,5 mm r_min 2 mm s 2 mm Axial displacement m 4,29 kg Mass C_r 265000 N Basic dynamic load rating, radial C_0r 490000 N Basic static load rating, radial C_ur 51000 N Fatigue limit load, radial n_G 1200 1/min Limiting speed n_B 870 1/min Reference speed

Variable compliance vibration is heavily dependent on the number of rolling elements supporting the externally applied load; the greater the number of loaded rolling elements, the less the vibration. For radially loaded or misaligned bearings running clearance determines the extent of the load regio and hence, in general variable compliance increases with clearance.

INA Cylindrical roller bearings SL181844 details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 20 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 220 mm D 270 mm B 24 mm D₁ 252,3 mm d₁ 237,3 mm E 258,5 mm r_min 1,5 mm s 2 mm Axial displacement m 2,8 kg Mass C_r 187000 N Basic dynamic load rating, radial C_0r 350000 N Basic static load rating, radial C_ur 36000 N Fatigue limit load, radial n_G 1320 1/min Limiting speed n_B 940 1/min Reference speed

Frequency analysis of the movement yields the base frequency and a series of harmonics. For a single row radial ball bearing withan inner ring speed of 1800rev/min a typical ball pass rate is 100Hz and significant harmonics to more than 500Hz can be generated.

INA Cylindrical roller bearings SL181840 details as bellow:

semi-locating bearing, full complement cylindrical roller set, dimension series 18

If you have any questions or want to purchase our products for INA Cylindrical roller bearings, send inquiry to us either by Email or call, more than 20 pcs in stock. we will reply you as soon as we can.ina bearings

E-mail: jerri_li@126.com
Tel: 86-138-21528041
contact person: jerri li

d 200 mm D 250 mm B 24 mm D₁ 231,6 mm d₁ 216,6 mm E 237,6 mm r_min 1,5 mm s 2 mm Axial displacement m 2,57 kg Mass C_r 178000 N Basic dynamic load rating, radial C_0r 320000 N Basic static load rating, radial C_ur 33500 N Fatigue limit load, radial n_G 1450 1/min Limiting speed n_B 1040 1/min Reference speed