interchange 17 mm x 47 mm x 14 mm 17 mm x 47 mm x 14 mm NACHI 6303-2NKE NACHI Bearing guide | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Brand | d | D | B | C | Size | Width | r min. | Weight |
| 713630300 | FAG | - | - | - | - | - | - | - | - |
| 713630330 | FAG | - | - | - | - | - | - | - | - |
| 713630350 | FAG | - | - | - | - | - | - | - | - |
| 713630360 | FAG | - | - | - | - | - | - | - | - |
| 713630370 | FAG | - | - | - | - | - | - | - | - |
| 713630380 | FAG | - | - | - | - | - | - | - | - |
| W6303 | CYSD | 17 mm | 47 mm | 22,2 mm | 13,58 kN | 17x47x22.2 | 22,2 | 0,5 mm | 0,191 Kg |
| W6303-2RS | CYSD | 17 mm | 47 mm | 22,2 mm | 13,58 kN | 17x47x22.2 | 22,2 | 0,5 mm | 0,191 Kg |
| W6303-2RSNR | CYSD | 17 mm | 47 mm | 22,2 mm | 13,58 kN | 17x47x22.2 | 22,2 | 0,5 mm | 0,191 Kg |
| W6303-ZZ | CYSD | 17 mm | 47 mm | 22,2 mm | 13,58 kN | 17x47x22.2 | 22,2 | 0,5 mm | 0,191 Kg |
| CRF-6303 2RSA | Loyal | 17,000 | 47,000 | - | - | 17x47x14 | 14,000 | - | 0.111 |
| NACHI 51217 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 20 mm x 52 mm x 15 mm 20 mm x 52 mm x 15 mm NACHI NUP304EG NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| NACHI UCF305 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| NACHI 54320 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 45 mm x 75 mm x 16 mm 45 mm x 75 mm x 16 mm NACHI 7009CDB NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 530 mm x 980 mm x 355 mm 530 mm x 980 mm x 355 mm NACHI 232/530EK NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 10 mm x 30 mm x 9 mm 10 mm x 30 mm x 9 mm NACHI 1200 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 45 mm x 100 mm x 25 mm 45 mm x 100 mm x 25 mm NACHI 6309NKE NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 60 mm x 95 mm x 27 mm 60 mm x 95 mm x 27 mm NACHI E33012J NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| NACHI UCIP212 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 50 mm x 80 mm x 16 mm 50 mm x 80 mm x 16 mm NACHI 7010CDT NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 50 mm x 90 mm x 20 mm 50 mm x 90 mm x 20 mm NACHI 6210 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| NACHI 240KBE131 NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
| 420 mm x 620 mm x 200 mm 420 mm x 620 mm x 200 mm NACHI 24084E NACHI Bearing | Series:LM48500; Cone Part Number:LM48548; Cup Part Number:LM48510; Design Units:Imperial; Bearing Weight:0.20 Kg; Cage Type:Stamped Steel; d:34.925 mm; D:65.088 mm; B - Cone Width:18.288 mm; C - Cup Width:13.970 mm; B:18.034 mm; R - Cone Backface To Clear Radius1:3.560 mm; r - Cup Backface To Clear Radius2:1.27 mm; da - Cone Frontface Backing Diameter:41.40 mm; db - Cone Backface Backing Diameter:48.01 mm; Da - Cup Frontface Backing Diameter:61.00 mm; Db - Cup Backface Backing Diameter:57.91 mm; Ab - Cage-Cone Frontface Clearance:2 mm; Aa - Cage-Cone Backface Clearance:0.3 mm; a - Effective Center Location3:-3.6 mm; C90 - Dynamic Radial Rating (90 million revolutions)4:3760 lbf; C1 - Dynamic Radial Rating (1 million revolutions)5:14500 lbf; C0 - Static Radial Rating:14200 lbf; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2430 lbf; K - Factor7:1.55; e - ISO Factor8:0.38; Y - ISO Factor9:1.59; G1 - Heat Generation Factor (Roller-Raceway):18; G2 - Heat Generation Factor (Rib-Roller End):10.6; Cg - Geometry Factor:0.0666; |
17 mm x 47 mm x 14 mm 17 mm x 47 mm x 14 mm NACHI 6303-2NKE NACHI Bearing Video
deep groove ball bearings - Nachi America
6900-2NSE. 6000-2NSE. 6200-2NSE ... 6202-2NSE ... 6203-2NSE ... 6303-2NKE ... 6303. 6804. 6904. 16004. 6004. 6204. 6304. 62/22. 63/22. 6805. 6905
6303-2NSE Nachi Bearing 17x47x14 Sealed C3 Japan Ball
6303-2NSE Nachi Bearing 17x47x14 Sealed C3 Japan Ball Bearings: Deep Groove Ball Bearings: Amazon.com: Industrial & Scientific
6303-2NSE Nachi Bearing 17x47x14 Sealed C3 ...
Order for NACHI-FUJIKOSHI CORP. Bearings | Authorized Distributor by VXB Bearing and get orders by wholesale prices. We are the largest Online Bearing
Nachi 6303-2NSE-C3 BXMM - Bearings & Drives Inc
Nachi 6303-2NSE-C3 BXMM Single Row Deep Groove Ball Bearing, 17mm x 47mm x 14mm, 6550 N Static, 13600 N Dynamic, C3 Clearance
6303-2NSE NACHI Ball Bearing 17x47x14 mm deep groove
6303-2NSE NACHI Deep Groove Ball Bearing. Double side rubber sealed deep groove ball bearings
6303-2NSE Nachi Bearing 17x47x14 Sealed C3 ...
6303-2NSE Nachi Bearing, Made in Japan, the 6303-2NSE inner diameter is 17mm, the 6303-2NSE outer diameter is 47mm, 6303-2NSE width is 14mm
Nachi 6303-2nse Single Row Ball Bearing for sale online | eBay
Find many great new & used options and get the best deals for Nachi 6303-2nse Single Row Ball Bearing at the best online prices at eBay! Free shipping for
6303-2NSE Nachi Bearing 17x47x14 Sealed C3 - CNC
Need a 6303-2NSE sealed ball bearing? CNC Specialty Store stocks this bearing 63002NSE9 and others. Equivalent replacement for 6303NSE,6303-2RS,
6303-2NSE9 NACHI bearing 6303-2NSE seals 6303-2RS
6303-2NSE9 NACHI bearing 6303-2NSE seals 6303-2RS bearings 6303 RS Japan: Amazon.com: Industrial & Scientific