Product Details

KOYO MK681 needle roller bearings

Brand Name KOYO
Model Number MK681
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

KOYO MK681 needle roller bearings are basic numbers only.

No.BrandDCFdsmBFw
Z-565681.ZL-K-C5FAG780 mm - 592 mm530 mm14,5 mm / Axial displacement facility from central position319 kg / Weight185 mm -
STF480RV6814gNSK680 mm8 350 kN - 480 mm - - 420 mm528 mm
STF480RV6815gNSK680 mm9 400 kN - 480 mm - - 500 mm532 mm
STF510RV6811gNSK680 mm8 950 kN - 510 mm - - 500 mm560 mm
6810Ruville - - - - - - - -
6811Ruville - - - - - - - -
6815Ruville - - - - - - - -
6816Ruville - - - - - - - -
6817Ruville - - - - - - - -
6819Ruville - - - - - - - -
712056810INA40 mm - - 30,6 mm - - 25,85 mm -

 

50 mm x 68 mm x 25 mm KOYO NQI50/25 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
Timken RNA69/32 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
NTN 8E-NK1-25X52.2X1#04 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
KOYO BHTM3530 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
Toyana K47x55x26 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
ZEN HK1712 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
NSK RLM3830 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
KOYO TVK6378L needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
NTN BK1812 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
KOYO K28X35X27H needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
KOYO RE222725AL1 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
60 mm x 90 mm x 30 mm KOYO NAO60X90X30 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
KOYO M12121 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;
NTN AXK1109 needle roller bearingsSeries:M252300; Cone Part Number:M252330X; Cup Part Number:M252310; Design Units:Imperial; Bearing Weight:33.70 Kg; Cage Type:Stamped Steel; d:234.95 mm; D:381.000 mm; B - Cone Width:74.613 mm; C - Cup Width:57.150 mm; B:74.610 mm; R - Cone Backface To Clear Radius1:6.35 mm; r - Cup Backface To Clear Radius2:3.30 mm; da - Cone Frontface Backing Diameter:261.87 mm; db - Cone Backface Backing Diameter:272.03 mm; Da - Cup Frontface Backing Diameter:364.00 mm; Db - Cup Backface Backing Diameter:356.11 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; Aa - Cage-Cone Backface Clearance:7.6 mm; a - Effective Center Location3:-6.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf; C0 - Static Radial Rating:455000 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf; K - Factor7:1.76; e - ISO Factor8:0.33; Y - ISO Factor9:1.8; G1 - Heat Generation Factor (Roller-Raceway):1839.2; G2 - Heat Generation Factor (Rib-Roller End):226.1; Cg - Geometry Factor:0.159;

 

 

KOYO MK681 needle roller bearings Video

 

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