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Home>Products>Cylindrical Roller Bearing>021.30.1200 Slewing Bearing 978x1262x124mm

021.30.1200 Slewing Bearing 978x1262x124mm MODELS

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021.30.1200 Slewing Bearing 978x1262x124mm

021.30.1200 Slewing Bearing 978x1262x124mm SPECIFICATIONS

Series:28000
Cone Part Number:28138
Cup Part Number:28300X
Design Units:Imperial
Bearing Weight:0.4 Kg
Cage Type:Stamped Steel
d:34.976 mm
D:76.2 mm

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021.30.1200 Slewing Bearing 978x1262x124mm Information techniques

Series:28000
Cone Part Number:28138
Cup Part Number:28300X
Design Units:Imperial
Bearing Weight:0.4 Kg
Cage Type:Stamped Steel
d:34.976 mm
D:76.2 mm
B - Cone Width:20.940 mm
C - Cup Width:15.494 mm
B:20.625 mm
R - Cone Backface To Clear Radius1:1.520 mm
r - Cup Backface To Clear Radius2:1.52 mm
da - Cone Frontface Backing Diameter:40.89 mm
db - Cone Backface Backing Diameter:43.43 mm
Da - Cup Frontface Backing Diameter:71.88 mm
Db - Cup Backface Backing Diameter:68.07 mm
Ab - Cage-Cone Frontface Clearance:1.8 mm
Aa - Cage-Cone Backface Clearance:1.5 mm
a - Effective Center Location3:-4.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:3700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:14300 lbf
C0 - Static Radial Rating:15500 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2550 lbf
K - Factor7:1.45
e - ISO Factor8:0.4
Y - ISO Factor9:1.49
G1 - Heat Generation Factor (Roller-Raceway):20.7
G2 - Heat Generation Factor (Rib-Roller End):12.5
Cg - Geometry Factor:0.0709

021.30.1200 Slewing Bearing 978x1262x124mm pdf

021.30.1200 Slewing Bearing 978x1262x124mm ‎Technology

B	118 mm
d	300 mm
r min.	4 mm
Weight	73,7 Kg
Outer Diameter (mm)	460
Size (mm)	300x460x118
ra max.	3 mm
Calculation factor (Y0)	2,63
Width (mm)	118
Calculation factor (Y1)	2,69
Calculation factor (e)	0,25
Bearing number	23060RK
Basic static load rating (C0)	3480 kN
C	118 mm
(Grease) Lubrication Speed	630 r/min
Da max.	442 mm
(Oil) Lubrication Speed	840 r/min
Bore Diameter (mm)	300
D	460 mm
Basic dynamic load rating (C)	1750 kN

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No.	Brand	d	B	D	C	C0	C2	D2	D1
AST090 25080	AST	250	-	255	-	-	-	-	-
AST11 25080	AST	250	-	255	-	-	-	-	-
WMLF2508ZZ	KOYO	2,5 mm	4 mm	8 mm	0,56 kN	0,18 kN	0,9 mm	9,5 mm	9,5 mm
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AST20 25080	AST	250	-	255	-	-	-	-	-
AST40 25080	AST	250	-	255	-	-	-	-	-
ASTB90 F25080	AST	250	-	255	-	-	-	-	-
ASTT90 25080	AST	250	-	255	-	-	-	-	-
ASTT90 F25080	AST	250	-	255	-	-	-	-	-
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120.40.2500 Slewing Bearing 2325x2678x112mm	Outer Diameter (mm):225; B1:70 mm; Size (mm):150x225x70; d:150 mm; D:225 mm; Bore Diameter (mm):150; Width (mm):70; Bearing number:7030 BDT; Angle (α):40 °;
120.32.1800 Slewing Bearing 1660x1940x91mm	Dynamic Load Rating:10800 lbf; Bolt Hole Length N1:29.4 mm; Weight:8.600 lb; Bolt Hole Width N:18.3 mm; Inside Ring Outside Diameter:2.747 in; Center of Bearing from End S:22.3 mm; Bearing Type:Ball Bearing; Foot Height H1:20.6 mm; Shaft Size d:2 3/16 in; Dimension T:1.189 in; Housing Style:Two-Bolt
120.40.2000 Slewing Bearing 1825x2178x112mm	d:200 mm; C0 - Static Radial Rating:587000 N; Tapered Bore:N; D:310 mm; R - Inner Ring To Clear Radius4:2.1 mm; Reference Thermal Speed Rating (Grease):1700; Bearing Weight:15.400 Kg; B - Outer Ring Width:51.000 mm; Reference Thermal Speed Rating (Oil)2:2000; Da - Outer Ring Backing Diameter:300.000
120.50.4000 Slewing Bearing 3772x4226x134mm	Y2 - ISO Factor6:2.16; C1(2) - Dynamic Radial Rating (Two-Rows):86500 N; Da - Outer Ring Backing Diameter:65.0 mm; UPC Code:087796304413; B - Outer Ring Width:23 mm; Reference Thermal Speed Rating (Oil)7:8700; Cage Material:Brass; Cage Type:EM; r - Outer Ring To Clear Radius2:1.0 mm; D:72 mm; Cg - G
120.50.3150 Slewing Bearing 2922x3376x134mm	Bore Diameter (mm):42; Size (mm):42x90x69.4; Width (mm):69,4; D:90 mm; Outer Diameter (mm):90; d1:30 mm; T:69,4 mm; d:42 mm; Bearing number:54408;
120.40.2800 Slewing Bearing 2625x2978x112mm	d:45 mm; Weight:0,4 Kg; B:32 mm; Category:Plain Bearings; d1:50,8 mm; C:25 mm; Bearing number:SAR1-45SS; Weight / Kilogram:0.39; E:62,4 mm; Bore Diameter (mm):45; D:68 mm; Inventory:0.0; Outer Diameter (mm):68; Angle:7 °; Manufacturer Name:NTN; Product Group:B04264; r2 min.:1 mm; Minimum Buy Qua
120.50.3550 Slewing Bearing 3322x3776x134mm	C:45 mm; D:120 mm; dk:105 mm; Width (mm):74; Weight:2,4 Kg; Basic dynamic load rating (C):400 kN; Bearing number:GEEM 80 ES 2RS; Angle:3 °; d2:90 mm; Outer Diameter (mm):120; r2 min.:1 mm; Size (mm):80x120x74; d:80 mm; r1 min.:0,3 mm; B:74 mm; Bore Diameter (mm):80;
120.40.2240 Slewing Bearing 2065x2418x112mm	Bore Diameter (mm):60; C:31 mm; Outer Diameter (mm):130; a:67 mm; Size (mm):60x130x31; d:60 mm; B:31 mm; D:130 mm; (Grease) Lubrication Speed:6885 r/min; Basic static load rating (C0):134 kN; Width (mm):31; Basic dynamic load rating (C):153 kN; Bearing number:QJ 312 N2 M; Weight:2,15 Kg;

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