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Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001

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: NU19/900 C3W33

Detail Information

Material: GCr15 Or GCr15SiMn Application: Vibration Machinary,CNC Machine And So On
Accuracy: P5,SP,P4,UP
High Light:

spherical roller bearing

,

sealed cylindrical roller bearings

Product Description

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

Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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 Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 1 P=F1
2E, 3, E3E, 4 Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 2 P=0,93*F1+0,69*Fa
29V, 22, 22E Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 3 P=F
23, 23E, 23 VH Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 4 P=0,93*F1+0,45*Fa
30V Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 5 P=F1
  Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 6 P=0,93*F1+0,33*Fa
50V Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 7 P=F1
  Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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

Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 9

if

Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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:

Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 11

Fa axial force [kN]

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

dm mean bearing diameter Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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:

Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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 Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 14

B bearing width [mm]

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

Shaft Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 15
Housing Hot - Riveted Steel Single Row Ball Bearing , High Speed Spindle Bearings ISO9001 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
NU1908E.M 40 62 12 24 21 0,1
NU1909E.M 45 68 12 27 22 0,2
NU1910E.M 50 72 12 31 24 0,2
NU1911E.M 55 80 13 40 32 0,2
NU1912E.M 60 85 13 44 33 0,2
NU1913E.M 65 90 13 46 34 0,3
NU1914E.M 70 100 16 66 50 0,4
NU1915E.M 75 105 16 72 52 0,4
NU1916E.M 80 110 16 77 54 0,5
NU1917E.M 85 120 18 94 66 0,7
NU1918E.M 90 125 18 98 67 0,7
NU1919E.M 95 130 18 105 70 0,7
NU1920E.M 100 140 20 125 84 1
NU1921E.M 105 145 20 130 85 1
NU1922E.M 110 150 20 134 87 1,1
NU1924E.M 120 165 22 180 118 1,5
NU1926E.M 130 180 24 232 153 1,9
NU1928E.M 140 190 24 241 155 2
NU1930E.M 150 210 28 300 194 3,1
NU1932E.M 160 220 28 322 201 3,3
NU1934E.M 170 230 28 334 204 3,4
NU1936E.M 180 250 33 411 260 5,1
NU1938E.M 190 260 33 442 272 5,3
NU1940E.M 200 280 38 533 327 7,5
NU1944E.M3A 220 300 38 555 330 8,1
NU1948E.M 240 320 38 628 356 8,8
NU1952E.M 260 360 46 900 516 14,8
NU1956E.M 280 380 46 960 534 15,7
NU1960E.M 300 420 56 1.194 695 24,8
NU1964E.MPA 320 440 56 1.200 689 26,2
NU1968E.M2 340 460 56 1.244 699 27,6
NU1972E.M 360 480 56 1.366 741 29
NU1976E.M 380 520 65 1.745 970 41,9
NU1980E.M 400 540 65 1.916 1.030 43,8
NU1984E.M 420 560 65 1.922 1.022 45,6
NU1988E.M 440 600 74 2.253 1.204 63,5
NU1992E.M 460 620 74 2.394 1.248 65,9
NU1996E.M 480 650 78 2.680 1.400 77,1
NU19/500E.M 500 670 78 2.841 1.450 79,8
NU19/530E.M 530 710 82 3.246 1.642 94,2
NU19/560E.M 560 750 85 3.440 1.734 109
NU19/600E.M 600 800 90 4.139 2.053 130
NU19/630E.M 630 850 100 4.791 2.406 167
NU19/670E.M 670 900 103 5.090 2.482 192
NU19/710E.M 710 950 106 5.771 2.796 217
NU19/750E.M 750 1.000 112 5.953 2.825 253
NU19/800E.M 800 1.060 115 6.747 3.170 286
NU19/850E.M 850 1.120 118 7.178 3.332 323
NU19/900E.M 900 1.180 122 8.576 3.914 366

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