8mm Constant Section Bearings

95 products

8mm Constant Section Bearings

The 8mm metric series provides a standardized 8x8mm square cross-section. This series is widely used in Asian and European robotic systems and automated warehouses, offering a perfect balance between high-speed capability and structural stiffness.

Bore diameter
25 mm 50 mm 60 mm 70 mm 80 mm 90 mm 100 mm 110 mm 120 mm 130 mm 140 mm 150 mm 160 mm 170 mm 180 mm 190 mm 200 mm 250 mm 300 mm 320 mm 340 mm 360 mm
Outside diameter
41 mm 66 mm 76 mm 86 mm 96 mm 106 mm 116 mm 126 mm 136 mm 146 mm 156 mm 166 mm 176 mm 186 mm 196 mm 206 mm 216 mm 266 mm 316 mm 336 mm 356 mm 376 mm
For load direction
Angular Contact Four Point Contact Radial
Seal type
Open Sealed
Shoulder diameter inner ring
30.9 mm 31.55 mm 55.9 mm 56.55 mm 65.9 mm 66.55 mm 75.9 mm 76.55 mm 85.9 mm 86.55 mm 95.9 mm 96.55 mm 105.9 mm 106.55 mm 115.9 mm 116.55 mm 125.9 mm 126.55 mm 135.9 mm 136.55 mm 145.9 mm 146.55 mm 155.9 mm 156.55 mm 165.9 mm 166.55 mm 175.9 mm 176.55 mm 185.9 mm 195.9 mm 205.9 mm 255.9 mm 305.9 mm 325.9 mm 345.9 mm 365.9 mm
Radial dynamic load rating
562 lbf 600 lbf 730 lbf 772 lbf 809 lbf 847 lbf 899 lbf 919 lbf 970 lbf 988 lbf 1014 lbf 1036 lbf 1054 lbf 1113 lbf 1115 lbf 1118 lbf 1175 lbf 1177 lbf 1210 lbf 1237 lbf 1294 lbf 1296 lbf 1303 lbf 1351 lbf 1363 lbf 1391 lbf 1407 lbf 1418 lbf 1459 lbf 1470 lbf 1477 lbf 1512 lbf 1534 lbf 1559 lbf 1563 lbf 1587 lbf 1598 lbf 1636 lbf 1638 lbf 1649 lbf 1695 lbf 1715 lbf 1744 lbf 1790 lbf 1865 lbf 1880 lbf 1936 lbf 1978 lbf 2006 lbf 2074 lbf 2092 lbf 2123 lbf 2172 lbf 2187 lbf 2202 lbf 2240 lbf 2290 lbf 2315 lbf 2366 lbf 2447 lbf 2498 lbf 2780 lbf 2888 lbf 2976 lbf 3078 lbf
Radial static load rating
668 lbf 736 lbf 820 lbf 1224 lbf 1226 lbf 1446 lbf 1669 lbf 1671 lbf 1735 lbf 1894 lbf 1975 lbf 2114 lbf 2218 lbf 2337 lbf 2339 lbf 2507 lbf 2562 lbf 2747 lbf 2782 lbf 2989 lbf 3005 lbf 3007 lbf 3230 lbf 3450 lbf 3518 lbf 3673 lbf 3761 lbf 3895 lbf 4001 lbf 4118 lbf 4286 lbf 4290 lbf 4508 lbf 4530 lbf 4773 lbf 5062 lbf 5302 lbf 5622 lbf 6556 lbf 6735 lbf 7180 lbf 7625 lbf 7857 lbf 8016 lbf 8388 lbf 8869 lbf 9400 lbf
Axial dynamic load rating
1034 lbf 1468 lbf 1642 lbf 1806 lbf 1962 lbf 2114 lbf 2260 lbf 2403 lbf 2540 lbf 2672 lbf 2802 lbf 2930 lbf 3055 lbf 3177 lbf 3296 lbf 3386 lbf 3501 lbf 4056 lbf 4577 lbf 4775 lbf 4971 lbf 5136 lbf
Axial static load rating
1237 lbf 1671 lbf 1806 lbf 2039 lbf 2224 lbf 2403 lbf 2606 lbf 2771 lbf 2930 lbf 3062 lbf 3086 lbf 3267 lbf 3415 lbf 3560 lbf 3618 lbf 3728 lbf 3867 lbf 4003 lbf 4164 lbf 4175 lbf 4294 lbf 4731 lbf 4947 lbf 5289 lbf 5582 lbf 5831 lbf 5844 lbf 6051 lbf 6292 lbf 6400 lbf 6958 lbf 7515 lbf 8071 lbf 8628 lbf 9184 lbf 9740 lbf 10297 lbf 10714 lbf 11272 lbf 14054 lbf 16838 lbf 17952 lbf 19065 lbf 20037 lbf
Part Number Bore diameter Outside diameter Width For load direction Seal type Ring material Ball material Radial dynamic load rating Radial static load rating
K02508AR0 25 mm 41 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 600 lbf 820 lbf
K02508XP0 25 mm 41 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 730 lbf 736 lbf
J02508XP0 25 mm 41 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 730 lbf 736 lbf
K02508CP0 25 mm 41 mm 8 mm Radial Open Chrome Steel Chrome Steel 562 lbf 668 lbf
J02508CP0 25 mm 41 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 562 lbf 668 lbf
K05008AR0 50 mm 66 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 809 lbf 1446 lbf
K05008XP0 50 mm 66 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1014 lbf 1224 lbf
J05008XP0 50 mm 66 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1014 lbf 1224 lbf
K05008CP0 50 mm 66 mm 8 mm Radial Open Chrome Steel Chrome Steel 772 lbf 1226 lbf
J05008CP0 50 mm 66 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 772 lbf 1226 lbf
K06008AR0 60 mm 76 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 899 lbf 1735 lbf
K06008XP0 60 mm 76 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1115 lbf 1446 lbf
J06008XP0 60 mm 76 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1115 lbf 1446 lbf
K06008CP0 60 mm 76 mm 8 mm Radial Open Chrome Steel Chrome Steel 847 lbf 1446 lbf
J06008CP0 60 mm 76 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 847 lbf 1446 lbf
K07008AR0 70 mm 86 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 970 lbf 1975 lbf
K07008XP0 70 mm 86 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1210 lbf 1669 lbf
J07008XP0 70 mm 86 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1210 lbf 1669 lbf
K07008CP0 70 mm 86 mm 8 mm Radial Open Chrome Steel Chrome Steel 919 lbf 1671 lbf
J07008CP0 70 mm 86 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 919 lbf 1671 lbf
K08008AR0 80 mm 96 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1036 lbf 2218 lbf
K08008XP0 80 mm 96 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1303 lbf 1894 lbf
J08008XP0 80 mm 96 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1303 lbf 1894 lbf
K08008CP0 80 mm 96 mm 8 mm Radial Open Chrome Steel Chrome Steel 988 lbf 1894 lbf
J08008CP0 80 mm 96 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 988 lbf 1894 lbf
K09008AR0 90 mm 106 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1113 lbf 2507 lbf
K09008XP0 90 mm 106 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1391 lbf 2114 lbf
J09008XP0 90 mm 106 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1391 lbf 2114 lbf
K09008CP0 90 mm 106 mm 8 mm Radial Open Chrome Steel Chrome Steel 1054 lbf 2114 lbf
J09008CP0 90 mm 106 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1054 lbf 2114 lbf
K10008AR0 100 mm 116 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1175 lbf 2747 lbf
K10008XP0 100 mm 116 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1477 lbf 2337 lbf
J10008XP0 100 mm 116 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1477 lbf 2337 lbf
K10008CP0 100 mm 116 mm 8 mm Radial Open Chrome Steel Chrome Steel 1118 lbf 2339 lbf
J10008CP0 100 mm 116 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1118 lbf 2339 lbf
K11008AR0 110 mm 126 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1237 lbf 2989 lbf
K11008XP0 110 mm 126 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1559 lbf 2562 lbf
J11008XP0 110 mm 126 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1559 lbf 2562 lbf
K11008CP0 110 mm 126 mm 8 mm Radial Open Chrome Steel Chrome Steel 1177 lbf 2562 lbf
J11008CP0 110 mm 126 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1177 lbf 2562 lbf
K12008AR0 120 mm 136 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1294 lbf 3230 lbf
K12008XP0 120 mm 136 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1638 lbf 2782 lbf
J12008XP0 120 mm 136 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1638 lbf 2782 lbf
K12008CP0 120 mm 136 mm 8 mm Radial Open Chrome Steel Chrome Steel 1237 lbf 2782 lbf
J12008CP0 120 mm 136 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1237 lbf 2782 lbf
K13008AR0 130 mm 146 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1363 lbf 3518 lbf
K13008XP0 130 mm 146 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1715 lbf 3005 lbf
J13008XP0 130 mm 146 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1715 lbf 3005 lbf
K13008CP0 130 mm 146 mm 8 mm Radial Open Chrome Steel Chrome Steel 1296 lbf 3007 lbf
J13008CP0 130 mm 146 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1296 lbf 3007 lbf
K14008AR0 140 mm 156 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1418 lbf 3761 lbf
K14008XP0 140 mm 156 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1790 lbf 3230 lbf
J14008XP0 140 mm 156 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1790 lbf 3230 lbf
K14008CP0 140 mm 156 mm 8 mm Radial Open Chrome Steel Chrome Steel 1351 lbf 3230 lbf
J14008CP0 140 mm 156 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1351 lbf 3230 lbf
K15008AR0 150 mm 166 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1470 lbf 4001 lbf
K15008xp0 150 mm 166 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1865 lbf 3450 lbf
J15008XP0 150 mm 166 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1865 lbf 3450 lbf
K15008CP0 150 mm 166 mm 8 mm Radial Open Chrome Steel Chrome Steel 1407 lbf 3450 lbf
J15008CP0 150 mm 166 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1407 lbf 3450 lbf
K16008AR0 160 mm 176 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1534 lbf 4290 lbf
K16008XP0 160 mm 176 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 1936 lbf 3673 lbf
J16008XP0 160 mm 176 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 1936 lbf 3673 lbf
K16008CP0 160 mm 176 mm 8 mm Radial Open Chrome Steel Chrome Steel 1459 lbf 3673 lbf
J16008CP0 160 mm 176 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1459 lbf 3673 lbf
K17008AR0 170 mm 186 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1587 lbf 4530 lbf
K17008XP0 170 mm 186 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2006 lbf 3895 lbf
J17008XP0 170 mm 186 mm 8 mm Four Point Contact Sealed Chrome Steel Chrome Steel 2006 lbf 3895 lbf
K17008CP0 170 mm 186 mm 8 mm Radial Open Chrome Steel Chrome Steel 1512 lbf 3895 lbf
J17008CP0 170 mm 186 mm 8 mm Radial Sealed Chrome Steel Chrome Steel 1512 lbf 3895 lbf
K18008AR0 180 mm 196 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1636 lbf 4773 lbf
K18008XP0 180 mm 196 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2074 lbf 4118 lbf
K18008CP0 180 mm 196 mm 8 mm Radial Open Chrome Steel Chrome Steel 1563 lbf 4118 lbf
K19008AR0 190 mm 206 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1695 lbf 5062 lbf
K19008XP0 190 mm 206 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2123 lbf 4286 lbf
K19008CP0 190 mm 206 mm 8 mm Radial Open Chrome Steel Chrome Steel 1598 lbf 4286 lbf
K20008AR0 200 mm 216 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1744 lbf 5302 lbf
K20008XP0 200 mm 216 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2187 lbf 4508 lbf
K20008CP0 200 mm 216 mm 8 mm Radial Open Chrome Steel Chrome Steel 1649 lbf 4508 lbf
K25008AR0 250 mm 266 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 1978 lbf 6556 lbf
K25008XP0 250 mm 266 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2498 lbf 5622 lbf
K25008CP0 250 mm 266 mm 8 mm Radial Open Chrome Steel Chrome Steel 1880 lbf 5622 lbf
K30008AR0 300 mm 316 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 2202 lbf 7857 lbf
K30008XP0 300 mm 316 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2780 lbf 6735 lbf
K30008CP0 300 mm 316 mm 8 mm Radial Open Chrome Steel Chrome Steel 2092 lbf 6735 lbf
K32008AR0 320 mm 336 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 2290 lbf 8388 lbf
K32008XP0 320 mm 336 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2888 lbf 7180 lbf
K32008XP0A 320 mm 336 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2888 lbf 7180 lbf
K32008CP0 320 mm 336 mm 8 mm Radial Open Chrome Steel Chrome Steel 2172 lbf 7180 lbf
K34008AR0 340 mm 356 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 2366 lbf 8869 lbf
K34008XP0 340 mm 356 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 2976 lbf 7625 lbf
K34008CP0 340 mm 356 mm 8 mm Radial Open Chrome Steel Chrome Steel 2240 lbf 7625 lbf
K36008AR0 360 mm 376 mm 8 mm Angular Contact Open Chrome Steel Chrome Steel 2447 lbf 9400 lbf
K36008XP0 360 mm 376 mm 8 mm Four Point Contact Open Chrome Steel Chrome Steel 3078 lbf 8016 lbf
K36008CP0 360 mm 376 mm 8 mm Radial Open Chrome Steel Chrome Steel 2315 lbf 8016 lbf
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