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Home>Products>Double-row cylindrical roller bearings>78/5 KOYO Single-row, matched pair angular contact ball bearings

  • 78/5 KOYO Single-row, matched pair angular contact ball bearings
  • 78/5 KOYO Single-row, matched pair angular contact ball bearings

KOYO 78/5 MODELS

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78/5 KOYO Single-row, matched pair angular contact ball bearings

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Double-row cylindrical roller bearings

KOYO 78/5 Bearing SPECIFICATIONS

  • KOYO

  • 78/5

  • Pillow Block
  • 0.0
  • N/A
  • 31.326
  • M06288
  • 2
  • Concentric Collar
  • 2 Bolt Pillow Block
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Types of 78/5 KOYO Single-row, matched pair angular contact ball bearings

  • Pillow Block
  • 0.0
  • N/A
  • 31.326
  • M06288
  • 2
  • Concentric Collar
  • 2 Bolt Pillow Block
  • Spherical Roller Bearing
  • Cast Steel
  • Non-expansion
  • 7/8 Inch
  • Yes
  • 22220
  • Double Lip Nitrile Rubber
  • 1 Piece Solid
  • Inch
  • Double Row | Single Collar | SN Style | With Set Screw
  • 2 Bolt Pillow Block; 3-3/4" Bore; 4-59/64" Base to Center Height; Concentric Collar Mount; Spherical Roller Bearing; 12.56" Minimum Bolt Spacing; 14.41" Bolt Spacing Maximum; Relub
  • 31171511
  • 8483.20.40.80
  • Bearing
  • Pillow Block
  • QASN20A312SB
  • 79
  • 3.75 Inch | 95.25 Millimeter
  • 14.41 Inch | 366.014Millimeter
  • 13.5 Inch | 342.5 Millimeter
  • 4.61 Inch | 117.094 Millimeter
  • 4.921 Inch | 125 Millimeter
  • 12.56 Inch | 319.024Millimeter
  • 0 Inch | 0Millimeter

KOYO 78/5 78/5 KOYO Single-row, matched pair angular contact ball bearings Technology

Reference speed7000 r/min
B23 mm
da min.54.2 mm
Basic dynamic load rating C98 kN
d2 ≈61.9 mm
da max.61.9 mm
D1 ≈79.4 mm
Da min.76.7 mm
Mass bearing + sleeve0.72 kg
G17 mm
ra max.1 mm
r1,2 min.1.1 mm
B135 mm
s1 max.7.1 mm
Operating clearance factor k20.128
Basic static load rating C0100 kN
B2 ≈38 mm
Misalignment factor k10.097
D90 mm
Limiting speed9500 r/min

78/5 KOYO Single-row, matched pair angular contact ball bearings cross reference by manufacturer

No.BrandTaBCdRrD
78/500NTN - - 56,000 mm56,000 mm500,000 mm - - 620,000 mm
545112-30178/545141-30178TIMKEN - - - - 11.25 Inch | 285.75 Millimeter - - 14.125 Inch | 358.775 Millimeter
53178/53377SKF30.958 mm30.006 mm28.3 mm20.638 mm44.45 mm - - 95.25 mm
578/572Timken36,512 mm - 36,098 mm28,575 mm79,985 mm3,5 mm3,3 mm139,992 mm
578/572D+X1S-578Timken82,55 mm - - 66,675 mm79,985 mm3,5 mm0,8 mm139,992 mm
5578/5535Timken43,658 mm - 43,764 mm36,512 mm53,975 mm3,6 mm3,3 mm122,238 mm
53178/53375Timken30,958 mm - 28,301 mm20,638 mm44,45 mm2 mm0,8 mm95,25 mm
53178/53376D+X2S-53176Timken65,088 mm - - 44,45 mm44,45 mm2 mm0,8 mm95,25 mm
53178/53377/QSKF30.958 mm30 mm28.3 mm20.638 mm44.45 mm - - 95.25 mm
4T-578/572D+ANTN82,55 mm - - - 79,985 mm - - 139,992 mm
4T-578/572DC+ANTN82,55 mm - - - 79,985 mm - - 139,992 mm

 

NN314 KOYO Double-row cylindrical roller bearingsAccessories:One Shield & Snap-Ri; B:19.00 mm; Oil Speed Rating Open/Shielded n2:11000 rpm; d:20.000 mm; Grease Speed Rating Open/Shielded n1:9000 rpm; Basic Dynamic Radial Load Rating C:29200 N; Fillet Radius ra:1.00 mm; D:72.0000 mm; Basic Static Radial Load Rating Co:18600 N;
NNU4938 KOYO Double-row cylindrical roller bearingsD:170 mm; Tolerance shaft:e7; Permissible sliding velocity v max.:0.5 m/s; Coefficient of friction µ max.:0.15; h:152 mm; Permissible sliding velocity v min.:0 m/s; Specific dynamic load factor K:25 N/mm²; d:150 mm; α:124 °; Coefficient of friction µ min.:0.08; Mass bushing:10.5
NN304 KOYO Double-row cylindrical roller bearingsAvailability:In Stock; Static Load Rating (kN):325; B:44mm; Fatigue Load Rating (kN):34.5; Seals or Shields:Two Rubber Seals; Dynamic Load Rating (kN):285; D:150mm; d:85mm; Weight:3.00 KGS; SKU:bs2-2217-2rsk/vt143-; Clearance:Standard; Cage Type:Steel; Limiting Speed Rating (r/min):1100;
NNU494 KOYO Double-row cylindrical roller bearingsR2:21.431 mm; P180°:40 kN; Ca:37.008 mm; H1:82.55 mm; R1:46.038 mm; A1:79.375 mm; J min.:219.075 mm; P60°:104 kN; Initial grease fill:68.04 g; Cap bolt recommended tightening torque:149.1 N·m; Da:130 mm; A2:120.65 mm; L:285.75 mm; Max. speed for PosiTrac Plus seal:2350 r/min; Pa:6.94
NNU4932 KOYO Double-row cylindrical roller bearingsD:160 mm; Roller and cage thrust assembly:K 81222 TN; Eb:152 mm; Ea:117 mm; Mass roller and cage thrust assembly:0.53 kg; Fatigue load limit Pu:98 kN; Dw:15 mm; d:110 mm; Basic dynamic load rating C:260 kN; Basic static load rating C0:1000 kN; Limiting speed:1700 r/min; Reference speed:850 r/min;
NN3038 KOYO Double-row cylindrical roller bearingsDa max.:299 mm; d2 ≈:228 mm; Basic dynamic load rating C:1630 kN; da min.:211 mm; Limiting speed:260 r/min; ra max.:2 mm; D1 ≈:280 mm; Basic static load rating C0:2650 kN; da max.:263 mm; r1,2 min.:2.1 mm; D:310 mm; Fatigue load limit Pu:236 kN; s2 max.:11.1 mm; s1 max.:21 mm; Operating
NNU4934 KOYO Double-row cylindrical roller bearingsClearance:Standard; d:80mm; Seals or Shields:Open Type; SKU:3216-b-tvh-fag; Dynamic Load Rating (kN):98; Fatigue Load Rating (kN):4.95; D:140mm; Limiting Speed Rating (r/min):4000; Availability:In Stock; Weight:2.45 KGS; Static Load Rating (kN):93; Cage Type:Plastic; Reference Speed Rating (r/min):5
NN3036 KOYO Double-row cylindrical roller bearingsP90°:149 kN; Eye bolt:2 x 3/8-16 UNC; Cap bolt:5/8-11 UNC; S:4.763 mm; ba:53.181 mm; A2:190.5 mm; PG:1/4 NPT; h:46.831 mm; PosiTrac Plus contact element:2 x B10724-113; P120°:94.3 kN; Cap bolt, SAE grade:8; Labyrinth ring:2 x LOR 112; P150°:87.2 kN; Cap bolt recommended tightening torque
NN3032 KOYO Double-row cylindrical roller bearingsBasic Static Radial Load Rating Co:10000 N; Oil Speed Rating Open/Shielded n2:13000 rpm; Fillet Radius ra:0.64 mm; Sealed Speed Rating n3:6700 rpm; Basic Dynamic Radial Load Rating C:13800 N; D:62.0000 mm; d:40.000 mm; B:12.00 mm; Grease Speed Rating Open/Shielded n1:10000 rpm; Accessories:Two Shiel
NN3034 KOYO Double-row cylindrical roller bearingsHeight H:4.8906 in; Diameter N:0.5000 in; Distance J:3.8906 in; Shaft Diameter D:15/16 in; Dimension A2:0.6250 in; Height T:1.5313 in; Basic Dynamic Radial Load Rating:3150 lbf; Dimension A1:1.1875 in; Basic Static Radial Load Rating Co:1750 lbf; Weight W:1.35 lb; Dimension L:2.7500 in; Dimension DA

 

 

78/5 KOYO Single-row, matched pair angular contact ball bearings Video

 

KOYO 78/5 INTERCHANGE

Double-row cylindrical roller bearings Part series 78/5 is a potential replacement for these common bearing part numbers:

  • 78/5

  • 78/5

  • 78/5

  • 78/5

  • 78/5

  • 78/5

  • 78/5

  • 78/5

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  • Kaydon Slewing Bearing
  • Bearing Slewing Ring
  • Double-row angular contact ball bearings
  • Double-row cylindrical roller bearings
  • BEARINGS FOR METRIC AND INCH SHAFT SIZES
  • Cylindrical Roller Bearings
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  • Stock Categories
    • FAG Bearing
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    • SKF 61800 Bearing
    • 3310 Bearing
    • Large Slewing Bearings
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    • Kaydon Slewing Bearing
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    • Double-row angular contact ball bearings
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    • BEARINGS FOR METRIC AND INCH SHAFT SIZES
    • Cylindrical Roller Bearings
    • Sealed spherical roller bearings continuous casting plants
    • Thk Linear Guide
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    • Thk Linear Guide Rails
    • High Temperature Linear Guide
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  • Technical Articles
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