Contact Us

Contact Person : Dave-Lee

Phone Number : +86 13213639372

Free call

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15

Minimum Order Quantity : 1 Price : USD
Packaging Details : Single box/Wooden case Delivery Time : 7-35 days
Payment Terms : TT Supply Ability : 1000/pcs/week
Place of Origin: LUOYANG Brand Name: MONTON
Certification: ISO9001 Model Number: NU18/950 C3W33

Detail Information

Material: GCr15 Or GCr15SiMn Application: Vibration Machinary,CNC Machine And So On
Accuracy: P0,P6,P5,SP,P4,UP Market: Europe.USA,Japan,Korean
Types: Single Row Or Double Row Or Four Row Samples: Available
High Light:

sealed cylindrical roller bearings

,

cylindrical thrust bearing

Product Description

Large Size Single Row Cylindrical Roller Bearings

 

 

 

 

 

Standards
Cylindrical roller bearings, single row: DIN 5412, part 1
Cylindrical roller bearings, double row: DIN 5412, part 4

Tolerances, bearing clearance
Bearing clearance is distinguished between radial and axial. Design versions like NUP or NJ + HJ need also attention in axial next to radial clearance. Tolerances are in accordance with ISO 492 and clearance is in accordance with ISO 5753.

Cages
All the cylindrical roller bearings of the series NU10, NU18, NU19, NU2, NU20, NU22, NU23, NU28 NU29, NU3, NU30, NU31, NU4, NU60, NN30.., NN48, NNU48, NNU49 and NNU60 are preferably delivered with machined brass cage.

The following machined cages are available:

  • Chamber-type cages, letter code M
  • Window-type cages, letter code MP
  • Comb-type cup cages, hot-riveted steel rivets, letter code M2
  • Comb-type cup cages, spider riveted, letter code M3
  • Comb-type cup cages, bolted, letter code M4 (available only for bore diameter 64 and higher)


The following types of machined cage guidance are offered for cylindrical roller bearings:

  • Roller guidance, no extra letter code
  • Outer roller guidance, additional letter code A
  • Inner roller guidance, additional letter code B


Angular adjustment
The modified line contact between rollers and races of cylindrical roller bearings avoids edge tension, and allows a slight adjustment of the contact angle. The adjusted contact angle shall not exceed four minutes with a load ratio

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 0

of single row cylindrical roller bearings (P = equivalent dynamic load [kN], C = dynamic capacity [kN]). The mounting positions of double row cylindrical roller bearings shall be free of any misalignment.

Design versions of cylindrical roller bearings
There are not only the standard types NU and NJ

 

 

The following combination specifications are common:
for NU + HJ: NUJ
for NJ + HJ: NH
for WU + HJ: WU..W

The bearing versions NU or NNU are used as examples of technical specifications such as load ratings and speed limits.

Cylindrical roller bearings are also available with a rough-ground inner ring raceway. You can also order bearings without an innerring (RNU) or without an outer ring (RN).

Equivalent dynamic load
The following applies to a cylindrical roller bearing with radial load:

P = Fr [kN]

If the radial force is combined with an axial force Fa, it will be considered in the bearing service life calculation, where Fa Fa zul admissible must be (Faadmissible = admissible axial force).

Maßreihe Belastungsverhältnis dynamische äquivalente Belastung
18, 19, 10 10E, 2 Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 1 P=F1
2E, 3, E3E, 4 Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 2 P=0,93*F1+0,69*Fa
29V, 22, 22E Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 3 P=F
23, 23E, 23 VH Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 4 P=0,93*F1+0,45*Fa
30V Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 5 P=F1
  Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 6 P=0,93*F1+0,33*Fa
50V Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 7 P=F1
  Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 8 P=0,96*F1+0,5*Fa

Admissible axial load
Cylindrical roller bearings of the series NUP, NJ, NJ with angular rings (NH) and cageless bearings of the series NJ..VH, NCF..V and NNF..V may accept axial forces, if they are also loaded in radial direction. The maximum axial load admissible is

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 9

if

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 10

is ensured.

It depends on:

  • radial load
  • speed
  • lubrication
  • operating temperature and heat transfer conditions

The theoretical axial load is determined calculating the heat balance at the bearing positions, and may be estimated as follows:

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 11

Fa axial force [kN]

fb 0,0048 for cage bearings
0,0063 for cageless bearings

dm mean bearing diameter Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 12


n Inner ring speed [min-1]

v operating viscosity of the oil or the grease basic oil [mm2/s]

D outer bearing diameter [mm]

d bore diameter [mm]

The axial clearance capacity depends on the support at the shoulders, and is limited by:

Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 13

Fa zul zulässige Axialkraft [kN]

K 6,5 for single row cage bearings
5,5 for cageless single row bearings
3 for multiple row bearings

dm mean bearing diamet Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 14

B bearing width [mm]

The axial clearance capacity depends on the support at the shoulders, and is limited by:

Shaft Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 15
Housing Cylindrical Thrust Roller Bearings For Rolling Mill , Stainless Steel Ball Bearings GCr15 16

dw support diameter for inner ring [mm]

Dg support diameter for outer ring [mm]

F envelope diameter of the inner ring [mm]

J edge diameter of the inner ring [mm]

E envelope diameter of the outer ring [mm]

H edge diameter of the outer ring [mm]


If the admissible axial load is exceeded, the support diameter has to be larger.

Equivalent static load
The following applies to a cylindrical roller bearing with static radial load:


P0 = Fr [kN]

 

Code Dimension Load rating Weight ≈
static dynamic
  d
mm
D
mm
B
mm
C0
kN
C
kN

kg
NU1808M 40 52 7 9 7 0
NU1809M 45 58 7 11 8 0,1
NU1810M 50 65 7 12 10 0,1
NU1811M 55 72 9 14 11 0,1
NU1812M 60 78 10 22 17 0,1
NU1813M 65 85 10 24 18 0,2
NU1814M 70 90 10 26 19 0,2
NU1815M 75 95 10 28 19 0,2
NU1816M 80 100 10 30 20 0,2
NU1817M 85 110 13 47 33 0,3
NU1818M 90 115 13 50 34 0,3
NU1819M 95 120 13 52 34 0,3
NU1820M 100 125 13 55 36 0,4
NU1821M 105 130 13 59 37 0,4
NU1822M 110 140 16 73 47 0,6
NU1824M 120 150 16 79 49 0,7
NU1826M 130 165 18 110 68 0,9
NU1828M 140 175 18 117 70 1
NU1830M 150 190 20 145 86 1,4
NU1832M 160 200 20 153 88 1,5
NU1834M 170 215 22 173 101 1,9
NU1836M 180 225 22 183 104 2
NU1838M 190 240 24 241 139 2,6
NU1840M 200 250 24 248 140 2,7
NU1844M 220 270 24 275 148 3
NU1848M2A 240 300 28 397 216 4,5
NU1852M 260 320 28 437 228 4,9
NU1856M 280 350 33 475 247 7,4
NU1860M2A 300 380 38 656 340 10,8
NU1864M 320 400 38 688 348 11,5
NU1868M 340 420 38 736 361 12
NU1872M 360 440 38 769 368 12,5
NU1876M 380 480 46 1.005 493 21
NU1880M2A 400 500 46 1.075 513 21,5
NU1884M 420 520 46 1.167 540 22,5
NU1888M 440 540 46 1.173 550 23,5
NU1892M2A 460 580 56 1.485 691 36,5
NU1896M2 480 600 56 1.519 697 38
NU18/500M 500 620 56 1.613 722 40
NU18/530M 530 650 56 1.678 735 41
NU18/560M4A 560 680 56 1.713 737 44
NU18/600M 600 730 60 2.083 874 54
NU18/630M 630 780 69 2.778 1.193 76
NU18/670M2A 670 820 69 2.736 1.163 80
NU18/710M2A 710 870 74 3.330 1.415 96
NU18/750M4 750 920 78 3.590 1.590 115
NU18/800M 800 980 82 4.265 1.774 135
NU18/850M 850 1.030 82 4.435 1.803 142
NU18/900M 900 1.090 85 5.067 2.042 164
NU18/950M 950 1.150 90 5.319 2.142 192
 

You Might Be Into These
Get in touch with us

Enter Your Message

montonbearing01@outlook.com