| Design Units | METRIC |
| G1 - Heat Generation Factor (Roller-Raceway) | 48.2 |
| Cup Part Number | JM205110 |
| K - Factor7 | 1.78 |
| da - Cone Frontface Backing Diameter | 56.90 mm |
| Bearing Weight | 0.70 Kg |
| Ab - Cage-Cone Frontface Clearance | 2.8 mm |
| r - Cup Backface To Clear Radius2 | 2.54 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 38000 N |
| G2 - Heat Generation Factor (Rib-Roller End) | 14.1 |
| a - Effective Center Location3 | -7.6 mm |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 21400 N |
| B | 28.000 mm |
| C0 - Static Radial Rating | 154000 N |
| Y - ISO Factor9 | 1.82 |
| C - Cup Width | 23.000 mm |
| e - ISO Factor8 | 0.33 |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 147000 N |
| R - Cone Backface To Clear Radius1 | 2.540 mm |
| Cage Type | Stamped Steel |
SB7255 KOYO Single-row deep groove ball bearings cross reference by manufacturer | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Brand | C | D | B | d | C0 | Noun | Size | Width |
| SB7255 | KOYO | 438 kN | 550 mm | 85 mm | 360 mm | 669 kN | - | 360x550x85 | 85 |
| SJ 7255 S | RBC BEARINGS | - | 1.875 Inch | 47.625 Millimeter | 1.25 Inch | 31.75 Millimeter | 1.375 Inch | 34.925 Millimeter | - | Roller Assembly with Outer Ring | - | - |
| SJ 7255 SS | RBC BEARINGS | - | 1.875 Inch | 47.625 Millimeter | 1.25 Inch | 31.75 Millimeter | 1.375 Inch | 34.925 Millimeter | - | Roller Assembly with Outer Ring | - | - |
| SJ 7255 | RBC BEARINGS | - | - | - | - | - | - | - | - |
| AR72552 | KOYO | - | - | - | - | - | - | - | - |
| SJ7255SS | RBC Bearings | - | 1.8750 in | 1.2500 in | 1.3750 in | - | - | - | - |
| SJ7255S | RBC Bearings | - | 1.8750 in | 1.2500 in | 1.3750 in | - | - | - | - |
| 29607-7255 | Garlock | - | 2.5590 in | - | - | - | - | - | - |
| 3725560 | SKF | - | - | - | - | - | Seal | - | - |
| 2725550 | SKF | - | - | - | - | - | Seal | - | - |
| 1725580 | SKF | - | - | - | - | - | Seal | - | - |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 - |
| 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 |
| 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 |
| 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 |
| 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 |
| 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; |
| 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; |
| 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. |
SB7255 KOYO Single-row deep groove ball bearings Video
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