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Home>Products>Full Complement Cylindrical Roller Bearings>6988 KOYO Single-row deep groove ball bearings

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6988 KOYO Single-row deep groove ball bearings

Name: 6988 KOYO Single-row deep groove ball bearings
Brand: KOYO
SKU: 6988
Rating: 4.9 (5 reviews)

KOYO 6988 Bearing SPECIFICATIONS

Brand Name:KOYO
Model Number:
6988
Category:Pillow Block
Inventory:0.0
Minimum Buy Quantity:N/A
Weight:56.296
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:56.296
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:Non-expansion
Mounting Bolts:7/8 Inch
Relubricatable:Yes
Insert Part Number:22226
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; 4-15/16" Bore; 5-1/2" Base to Center Height; Concentric Collar Mount; Spherical Roller Bearing; 15-1/8" Minimum Bolt Spacing; 15-7/8" Bolt Spacing Maximum; Rel
UNSPSC:31171511
Harmonized Tariff Code:8483.20.40.80
Noun:Bearing
Keyword String:Pillow Block
Manufacturer Item Number:QAAPF26A415SO
Weight / LBS:134
Bolt Spacing Maximum:15.875 Inch | 403.225Millimeter
Bolt Spacing Minimum:15.125 Inch | 384.175Millimeter
Nominal Bolt Center to Center:15.5 Inch | 393.7 Millimeter
D:7.44 Inch | 188.976 Millimeter
d:4.938 Inch | 125.425 Millimeter
B:5.5 Inch | 139.7 Millimeter
Actual Bolt Center to Center:0 Inch | 0Millimeter

KOYO 6988 6988 KOYO Single-row deep groove ball bearings Code system

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2	8810 lbf
db - Cone Backface Backing Diameter	2.05 in
B - Cone Width	1.0100 in
Ca90 - Dynamic Thrust Rating (90 million revolutions)7	2630 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6	19500 lbf
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1	34000 lbf
a - Effective Center Location4	-0.32 in
Ab - Cage-Cone Frontface Clearance	0.06 in
Aa - Cage-Cone Backface Clearance	0.04 in
da - Cone Frontface Backing Diameter	1.77 in
Series	2700
Design Units	Imperial
d	1.5625 in
R - Cone Backface To Clear Radius3	0.14 in
Cg - Geometry Factor	0.0725
C0 - Static Radial Rating	23000 lbf
Cone Part Number	2789
K - Factor8	1.93
Cage Type	Stamped Steel
C90 - Dynamic Radial Rating (90 million revolutions)5	5060 lbf

6988 KOYO Single-row deep groove ball bearings cross reference by manufacturer
No.	Brand	D	d	B	C	C0	Fw	Size	RoHS
FC69887	INA	49 mm	32,5	-	-	-	32,5 mm	32.5x49x22	-
6988	NTN	600 mm	440 mm	74 mm	365 kN	615 kN	-	440x600x74	-
6988M	MISUMI	-	-	-	-	-	-	-	6
6988H	Timken National Seals	-	-	-	-	-	-	-	-
P566988	Donaldson	-	-	-	-	-	-	-	-
R928016988	Rexroth	-	-	-	-	-	-	-	-
926988	Parker	-	-	-	-	-	-	-	-
926988Q	Parker	-	-	-	-	-	-	-	-
1269880	Hydac	-	-	-	-	-	-	-	-
69884	FilterMart	-	-	-	-	-	-	-	-

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
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;
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
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
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;
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
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
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
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
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
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 -
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.
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

6988 KOYO Single-row deep groove ball bearings Video

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Bearing 6988 (KOYO) | Size and Specification | Bearings

Deep groove ball bearings 6988. Bearing number : 6988. Size (mm) : 440x600x74. Brand : KOYO. Bore Diameter (mm) : 440. Outer Diameter (mm) : 600

Deep groove ball bearing 6988-KOYO - 440x600x74 mm

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KOYO 6988 INTERCHANGE

Full Complement Cylindrical Roller Bearings Part series 6988 is a potential replacement for these common bearing part numbers:

NSK6988
SKF6988
NTN6988
FAG6988
TIMKEN6988
KOYO6988
NACHI6988
DODGE6988

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