Do You Know What are Thin-Wall Bearings?

Nov 06, 2025

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Thin-wall bearings, also known as thin-walled deep groove ball bearings, are compact, high-precision, and high-load-bearing bearings. Their inner and outer ring walls are thinner, yet they still maintain high strength and rigidity. This thin-walled design offers significant advantages in space-constrained applications. The following are the main characteristics of thin-wall bearings:
thin-walled deep groove ball bearing

First, lightweight: Compared to ordinary bearings, thin-wall bearings are thinner, making them lighter and helping to reduce the overall weight of machinery and lower energy consumption. Second, high precision: Thin-wall bearings are typically manufactured using precision processes to ensure high rotational accuracy and a low coefficient of friction.

Third, high load-bearing capacity: Although the walls are thin, the use of high-strength materials and precision machining results in a high load-bearing capacity. Fourth, good dynamic balance: The design of thin-wall bearings helps achieve good dynamic balance, reducing vibration and noise. Fifth, wide adaptability: Thin-wall bearings are suitable for high-speed rotation and precision positioning applications such as machine tool spindles, high-speed electric spindles, medical equipment, and precision measuring instruments.

Our Part Of The Thin-Section Bearings Stocklist 
 

  D[mm] H[mm] B[mm] CK[kN] C0[kN] C0a[kN] CM[kN·m] C0M[kN·m] ≈[kg]  
d[mm]  
KDN.J02508XP0 25 41 8 8.001 3.25 3.28 7.43 0.04 0.049 0.06
KDN.K02508AR0 25 41 8 8.001 2.67 3.65 10.5     0.06
KDN.K02508CP0 25 41 8 8 2.5 2.97       0.06
KDN.K02508XP0 25 41 8 8.001 3.25 3.28 7.43 0.04 0.049 0.06
KDN.K02513AR0 25 51 13 13 5.43 6.04 17.4     0.13
KDN.K02513CP0 25 51 13 13 5.25 5.07       0.11
KDN.K02513XP0 25 51 13 13 6.76 6.83 12.7 0.096 0.096 0.13
KDN.K02520AR0 25 65 20 20 11.3 11.1 32.1     0.31
KDN.K02520CP0 25 65 20 20 11.6 9.98       0.34
KDN.K02520XP0 25 65 20 20 14.7 14.9 25 0.225 0.225 0.34
KDN.JHA10CL0 25.4 34.925 4.763 6.35 0.836 1.29       0.016
KDN.JHA10XL0 25.4 34.925 4.763 6.35 1.1 1.29 3.25 0.0124 0.0192 0.016
KDN.KAA10AG0 25.4 34.925 4.763 4.763 0.863 1.51 4.31     0.011
KDN.KAA10CL0 25.4 34.925 4.763 4.763 0.836 1.29       0.012
KDN.KAA10XL0 25.4 34.925 4.763 4.763 1.1 1.29 3.25 0.0124 0.0192 0.012
KDN.NAA10AG0 25.4 34.93 4.763 4.763 0.863 1.51 4.31     0.011
KDN.NAA10XL0 25.4 34.93 4.763 4.763 1.1 1.29 3.25 0.0124 0.0192 0.012
KDN.SAA10AG0 25.4 34.925 4.763 4.763 0.863 1.51 4.31     0.011
KDN.SAA10CL0 25.4 34.925 4.763 4.763 0.836 1.29       0.012
KDN.SAA10XL0 25.4 34.925 4.763 4.763 1.1 1.29 3.25 0.0124 0.0192 0.012
KDN.JHA15CL0 38.1 47.625 4.763 6.35 1 1.78       0.024
KDN.JHA15XL0 38.1 47.625 4.763 6.35 1.32 1.78 4.45 0.0211 0.0384 0.024
KDN.KAA15AG0 38.1 47.625 4.763 4.763 1.06 2.14 6.14     0.017
KDN.KAA15CL0 38.1 47.625 4.763 4.763 1 1.78       0.018
KDN.KAA15XL0 38.1 47.625 4.763 4.763 1.32 1.78 4.45 0.0211 0.0384 0.018
KDN.NAA15AG0 38.1 47.63 4.763 4.763 1.06 2.14 6.14     0.017
KDN.NAA15CL0 38.1 47.63 4.763 4.763 1 1.78       0.018
KDN.NAA15XL0 38.1 47.63 4.763 4.763 1.32 1.78 4.45 0.0211 0.0384 0.018
KDN.SAA15AG0 38.1 47.625 4.763 4.763 1.06 2.14 6.14     0.017
KDN.SAA15CL0 38.1 47.625 4.763 4.763 1 1.78       0.018
KDN.SAA15XL0 38.1 47.625 4.763 4.763 1.32 1.78 4.45 0.0211 0.0384 0.018
KDN.JHA17CL0 44.45 53.975 4.763 6.35 1.08 2.05       0.027
KDN.JHA17XL0 44.45 53.975 4.763 6.35 1.42 2.05 5.07 0.0262 0.0497 0.027
KDN.KAA17AG0 44.45 53.975 4.763 4.763 1.12 2.36 6.76     0.02
KDN.KAA17CL0 44.45 53.975 4.763 4.763 1.08 2.05       0.02
KDN.KAA17XL0 44.45 53.975 4.763 4.763 1.42 2.05 5.07 0.0262 0.0497 0.02
KDN.NAA17AG0 44.45 53.98 4.763 4.763 1.12 2.36 6.76     0.02
KDN.NAA17XL0 44.45 53.98 4.763 4.763 1.42 2.05 5.07 0.0262 0.0497 0.02
KDN.SAA17AG0 44.45 53.975 4.763 4.763 1.12 2.36 6.76     0.02
KDN.J05008XP0 50 66 8 8 4.51 5.44 13.6 0.098 0.158 0.08
KDN.K05008AR0 50 66 8 8 3.6 6.43 18.6     0.08
KDN.K05008CP0 50 66 8 8.001 3.43 5.45       0.08
KDN.K05008XP0 50 66 8 8.001 4.51 5.44 13.6 0.098 0.158 0.08
KDN.K05013AR0 50 76 13 13 7.11 10.4 30.1     0.2
KDN.K05013CP0 50 76 13 13 6.84 8.88       0.18
KDN.K05013XP0 50 76 13 13 8.92 9.01 22.2 0.211 0.28 0.2
KDN.K05020AR0 50 90 20 20 14.3 18.5 53.5     0.49
KDN.K05020CP0 50 90 20 20 13.8 15.7       0.51
KDN.K05020XP0 50 90 20 20 17.9 18.1 39.2 0.47 0.549 0.52
KDN.JA020CP0 50.8 63.5 6.35 6.35 1.75 3.02       0.045
KDN.JA020XP0 50.8 63.5 6.35 6.35 2.29 3.02 7.61 0.049 0.087 0.045
KDN.JB020CP0 50.8 66.675 7.938 7.938 2.57 4.14       0.068
KDN.JB020XP0 50.8 66.675 7.938 7.938 3.37 4.14 10.4 0.0743 0.122 0.068
KDN.KA020AR0 50.8 63.5 6.35 6.35 1.8 3.51 10.1     0.045
KDN.KA020CP0 50.8 63.5 6.35 6.35 1.75 3.02       0.045
KDN.KA020XP0 50.8 63.5 6.35 6.35 2.29 3.02 7.61 0.049 0.087 0.045
KDN.KB020AR0 50.8 66.675 7.938 7.938 2.67 4.85 14     0.068
KDN.KB020CP0 50.8 66.675 7.938 7.938 2.57 4.14       0.073
KDN.KB020XP0 50.8 66.675 7.938 7.938 3.37 4.14 10.4 0.0743 0.122 0.073
KDN.NA020AR0 50.8 63.505 6.35 6.35 1.8 3.51 10.1     0.045
KDN.NA020XP0 50.8 63.505 6.35 0 2.29 3.02 7.61 0.049 0.087 0.045
KDN.NB020AR0 50.8 66.68 7.938 7.938 2.67 4.85 14     0.068
KDN.NB020CP0 50.8 66.68 7.938 7.938 2.57 4.14       0.073
KDN.NB020XP0 50.8 66.68 7.938 7.938 3.37 4.14 10.4 0.0743 0.122 0.073
KDN.SA020AR0 50.8 63.5 6.35 6.35 1.8 3.51 10.1     0.045
KDN.SA020CP0 50.8 63.5 6.35 6.35 1.75 3.02       0.045
KDN.SA020XP0 50.8 63.5 6.35 6.35 2.29 3.02 7.61 0.049 0.087 0.045
KDN.SB020AR0 50.8 66.675 7.938 7.938 2.67 4.85 14     0.068
KDN.SB020CP0 50.8 66.675 7.938 7.938 2.57 4.14       0.073
KDN.SB020XP0 50.8 66.675 7.938 7.938 3.37 4.14 10.4 0.0743 0.122 0.073
KDN.J06008XP0 60 76 8 8 4.96 6.43 16.1 0.127 0.219 0.09
KDN.K06008AR0 60 76 8 8.001 4 7.72 22.3     0.09
KDN.K06008CP0 60 76 8 8 3.77 6.43       0.09
KDN.K06008XP0 60 76 8 8.001 4.96 6.43 16.1 0.127 0.219 0.09
KDN.K06013AR0 60 86 13 13.005 7.67 12.1 34.9     0.22
KDN.K06013CP0 60 86 13 13.005 7.6 10.8       0.21
KDN.K06013XP0 60 86 13 13.005 9.94 10.8 26.9 0.272 0.393 0.23
KDN.K06020AR0 60 100 20 20 15.2 21 60.6     0.56
KDN.K06020CP0 60 100 20 20 14.2 17.1       0.58
KDN.K06020XP0 60 100 20 20 18.5 18.7 42.8 0.556 0.685 0.59
KDN.JA025CP0 63.5 76.2 6.35 6.35 1.97 3.69       0.054
KDN.JA025XP0 63.5 76.2 6.35 6.35 2.59 3.69 9.3 0.0679 0.13 0.054
KDN.JB025CP0 63.5 79.375 7.938 7.938 2.86 5.07       0.086
KDN.JB025XP0 63.5 79.375 7.938 7.938 3.77 5.07 12.6 0.101 0.181 0.086
KDN.KA025AR0 63.5 76.2 6.35 6.35 2.04 4.27 12.4     0.054
KDN.KA025CP0 63.5 76.2 6.35 6.35 1.97 3.69       0.059
KDN.KA025XP0 63.5 76.2 6.35 6.35 2.59 3.69 9.3 0.0679 0.13 0.059
KDN.KB025AR0 63.5 79.375 7.938 7.938 3 5.96 17.2     0.086
KDN.KB025CP0 63.5 79.375 7.938 7.938 2.86 5.07       0.091
KDN.KB025XP0 63.5 79.375 7.938 7.938 3.77 5.07 12.6 0.101 0.181 0.086
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