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Home>Products>Full Complement Cylindrical Roller Bearings>AC644556B KOYO Single-row, matched pair angular contact ball bearings

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AC644556B KOYO Single-row, matched pair angular contact ball bearings

Name: AC644556B KOYO Single-row, matched pair angular contact ball bearings
Brand: KOYO
SKU: AC644556B
Rating: 4.9 (5 reviews)

KOYO AC644556B Bearing SPECIFICATIONS

Brand Name:KOYO
Model Number:
AC644556B
Category:Pillow Block
Inventory:0.0
Minimum Buy Quantity:N/A
Weight:7.718
Product Group:M06288
Number of Mounting Holes:4
Mounting Method:Concentric Collar
Housing Style:4 Bolt Pillow Block

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Full Complement Cylindrical Roller Bearings Specification details

Category:Pillow Block
Inventory:0.0
Minimum Buy Quantity:N/A
Weight:7.718
Product Group:M06288
Number of Mounting Holes:4
Mounting Method:Concentric Collar
Housing Style:4 Bolt Pillow Block
Rolling Element:Spherical Roller Bearing
Housing Material:Cast Steel
Expansion / Non-expansion:Expansion
Mounting Bolts:5/8 Inch
Relubricatable:Yes
Insert Part Number:22213
Seals:Triple Lip Urethane
Housing Configuration:1 Piece Solid
Inch - Metric:Inch
Other Features:Double Row | Double Collar | With Set Screw
Long Description:4 Bolt Pillow Block; 2-7/16" Bore; 2-3/4" Base to Center Height; Concentric Collar Mount; Spherical Roller Bearing; 7-1/8" Minimum Bolt Spacing; 8-3/4" Bolt Spacing Maximum; Relubr
UNSPSC:31171511
Harmonized Tariff Code:8483.20.40.80
Noun:Bearing
Keyword String:Pillow Block
Manufacturer Item Number:QAAPR13A207SEO
Weight / LBS:20
D:4.3 Inch | 109.22 Millimeter
Actual Bolt Center to Center:0 Inch | 0Millimeter
Nominal Bolt Center to Center:7.9 Inch | 199.5 Millimeter
d:2.438 Inch | 61.925 Millimeter
B:2.75 Inch | 69.85 Millimeter
Bolt Spacing Maximum:8.75 Inch | 222.25Millimeter
Bolt Spacing Minimum:7.125 Inch | 180.975Millimeter

KOYO AC644556B AC644556B KOYO Single-row, matched pair angular contact ball bearings Code system

Dimension D	9.0 in
Dimension W	1.2 in
Ca - Axial Load Rating	1978 lbf
Bearing Number	MSE207BR
Dimension N	10.5 in
Dimension P	0.9 in
Dimension V	4.5 in
Bearing - Housing - Seal UPC	013992076304
Dimension B	6.0 in
Dimension X	0.9 in
Cor - Static Load Rating	42714 lbf
Shaft Size	2-7/16 in
Dimension H	1.6 in
Bearing - Housing - Seal	MSE207BRHRSS
Bearing UPC	013992031891
Maximum Speed	3680 rpm
Cr - Dynamic Load Rating	37768 lbf
Support Type	Take-Up
Tensioning Unit Type	Tension Type
Dimension R	4.5 in

AC644556B KOYO Single-row, matched pair angular contact ball bearings cross reference by manufacturer
No.	Brand	d	D	B	C	a	Size	Width	r min.
AC644556B	KOYO	320 mm	449,5 mm	56 mm	318 kN	189,5 mm	320x449.5x56	56	3 mm

N321 KOYO Single-row cylindrical roller bearings	Eng Internal Radial Clearance - Min:0.0043; C - Dynamic Load (Basic):66900 lb; Shaft Size :3 in; Grease Lubrication - B/C/O Seal:1100 rpm; Oil Lubrication - M/N Seal:1400 rpm; Int Radial Clearance Reduction Max:0.0025 in; Shaft Size Type:Imperial; Pre Install Clearance Min:0.0043 in; Y1 -
NU320R KOYO Single-row cylindrical roller bearings	Limiting Speed - Oil:9,500 rpm; dc (min):47 mm; r1:1.5 mm; Fillet Radius/Chamfer:1.5 mm; d:30 mm; D:90 mm; Weight:0.770 kg; Limiting Speed - Grease:7,500 rpm; Bore Type:Cylindrical Bore; db (min):38.5 mm; ra1 (max):1.5 mm; Radial Clearance:0.035 to 0.060 mm; Static Load Rating:55,000 N; Dynamic Load
NU1022 KOYO Single-row cylindrical roller bearings	dc (min):234 mm; Radial Clearance:0.140 to 0.195 mm; Limiting Speed - Oil:2,000 rpm; db (min):208 mm; ra (max):3 mm; Fillet Radius/Chamfer:4 mm; Dynamic Load Rating:830,000 N; Enclosure:Open; Bore Type:Cylindrical Bore; dd (min):247 mm; ra1 (max):3 mm; r1:4 mm; Limiting Speed - Grease:1,600 rpm; B:9
NU2320R KOYO Single-row cylindrical roller bearings	Support Type:Four-Bolt Plummer Bl; Shaft Size:6-15/16 in; Bolt Size:4 x 1-1/4; Series Type:Light Series; Maximum Speed:1220 rpm; Bearing Number:LSE615BX; Note:This product line wa; Seal Type:High Temperature Pac; Dimension M :7-1/2 in; Housing Width:6.8 in; Dimension J1 :24-3/8 in; Dimensi
NU2222 KOYO Single-row cylindrical roller bearings	C90 - Dynamic Radial Rating (90 million revolutions)4:37500 lbf; R - Cone Backface To Clear Radius1:6.35 mm; Cone Part Number:EE170975; G1 - Heat Generation Factor (Roller-Raceway):1070; Cup Part Number:171436; da - Cone Frontface Backing Diameter:263.91 mm; Y - ISO Factor9:1.65; B:50.800 mm; D:365.
NU332 KOYO Single-row cylindrical roller bearings	Da - Cup Frontface Backing Diameter:3.40 in; B - Cone Width:0.8750 in; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:3250 lbf; Aa - Cage-Cone Backface Clearance:0 in; Cage Type:Stamped Steel; T1 - Bearing Width:0.7874 in; D1 - Flange Outer Diameter:3.7268 in; G1 - Heat Generation Factor (Ro
NU2222R KOYO Single-row cylindrical roller bearings	Series Type:Heavy Series; Cr - Dynamic Load Rating:359020 lbf; Shaft Size:8 in; Bolt Size:4 x M36; Seal Type:Viton Single Lip; Housing Width:10.6 in; Dimension H:12.244 in; Dimension M:10.5 in; Shipping Weight:1494 lb; Bearing UPC:013992023391; Maximum Speed:880 rpm; Support Type:Four-Bolt Plummer B
NU232 KOYO Single-row cylindrical roller bearings	R - Cone Backface To Clear Radius1:0.760 mm; Series:M88000; e - ISO Factor8:0.55; a - Effective Center Location3:-2.8 mm; Ab - Cage-Cone Frontface Clearance:1.5 mm; da - Cone Frontface Backing Diameter:41.15 mm; C - Cup Width:17.463 mm; C0 - Static Radial Rating:17400 lbf; B - Cone Width:22.225 mm;
NU2321 KOYO Single-row cylindrical roller bearings	Cr - Dynamic Load Rating:81606 lbf; Support Type:Two-Bolt Plummer Blo; Dimension H:150 mm; Housing Width:6.1 in; Note:This product line wa; Cor - Static Load Rating:111505 lbf; Pillow/Plummer Block Style:Split Cylindrical Ho; Maximum Speed:1740 rpm; Bearing UPC:013992028297; Series Type:Light Series
NU222R KOYO Single-row cylindrical roller bearings	Full Timken Part Number:99999B; Dimension C:6.50 in; Adapter Sleeve Axial Movement Min:0.035 in; C0 - Static Load:212000 lb; Y1 - Geometry Factor:2.43; Dimension D:11.190 in; Dimension J (Bolt Size):1.125 in; Oil Lubrication - T Seal:1500 rpm; Dimension F:16.5 in; Dimension L Exp:5.62 in; e - Geomet
NU3222 KOYO Single-row cylindrical roller bearings	Appropriate Hydraulic Nut:HMV60; Weight:16.30 Kg; e:9.0 mm; d1:260.00 mm; Thread D12:Tr300x4; L1:219 mm; Ro:G1/4; t:15 mm; L1:202.00 mm; b:22 mm; Appropriate Withdrawal Nut No.:HM3160;
N222 KOYO Single-row cylindrical roller bearings	db - Cone Backface Backing Diameter:10.73 in; Cage Type:Stamped Steel; R - Cone Frontface To Clear Radius2:0.130 in; Cone Part Number:M249748DW; Design Units:Imperial; C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4:358000 lbf; B - Double Cone Width:5.1250 in; C90 - Dynamic Radial Ratin
N221 KOYO Single-row cylindrical roller bearings	Enclosure:Open; Static Load Rating:233,000 N; Retainer Material:Machined Brass; ra (max):1 mm; Dynamic Load Rating:197,000 N; Axial Load Factor Y2:5.08; Fillet Radius/Chamfer:1.1 mm; Hole Diameter (do):3 mm; Bore Type:Cylindrical Bore; B:30 mm; Axial Load Factor Y0:3.34; Limiting Speed - Grease:3,40
NU1021 KOYO Single-row cylindrical roller bearings	ra (max):0.3 mm; Dynamic Load Rating:4,600 N; Bore Type:Cylindrical Bore; Da (max):28 mm; d:17 mm; Radial Clearance:0.011 to 0.025 mm; Weight:0.018 kg; B:7 mm; D:30 mm; Configuration:Single Row; da (min):19 mm; Factor fo:14.7; Static Load Rating:2,550 N; Enclosure:Double Seal; Limiting Speed - Greas

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KOYO AC644556B INTERCHANGE

Full Complement Cylindrical Roller Bearings Part series AC644556B is a potential replacement for these common bearing part numbers:

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