+86-635-8509787 +86-13280450757 sales@xrbearing.com Yandian Industrial Zone, Liaocheng City, ShanDong Province. China Skype: brandbearings
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High-precision KD-CP0 Series Full-size Deep Groove Ball Bearings with Thin-section
KD series constant cross-section bearings have a constant cross-section of 12.7*12.7mm. They are C-type two-point contact deep groove ball bearings, which preferentially bear radial loads and can also bear small axial loads in both directions. With no seals, it has low frictional resistance and is suitable for clean and dry environments. For environments with dust or moisture, an external dustproof structure is required.
Maximum radius of chamfer on shaft or bearing housing
KD042CP0 Thin Section Bearing
d
107.95 mm / 4.25 in
aperture
D
133.35 mm / 5.25 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 117.348 mm / 4.62 in
Inner ring flange diameter
D1
≈ 123.952 mm / 4.88 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD045CP0 Thin Section Bearing
d
114.3 mm / 4.5 in
aperture
D
139.7 mm / 5.5 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 123.698 mm / 4.87 in
Inner ring flange diameter
D1
≈ 130.302 mm / 4.13 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD047CP0 Thin Section Bearing
d
120.65 mm / 4.75 in
aperture
D
146.05 mm / 5.75 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 130.048 mm / 5.12 in
Inner ring flange diameter
D1
≈ 136.652 mm / 5.38 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD050CP0 Thin Section Bearing
d
127 mm / 5 in
aperture
D
152.4 mm / 6 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 136.398 mm / 5.37 in
Inner ring flange diameter
D1
≈ 143.002 mm / 5.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD055CP0 Thin Section Bearing
d
139.7 mm / 5.5 in
aperture
D
165.1 mm / 6.5 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 149.098 mm / 5.87 in
Inner ring flange diameter
D1
≈ 155.702 mm / 6.13 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD060CP0 Thin Section Bearing
d
152.4 mm / 6 in
aperture
D
177.8 mm / 7 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 161.798 mm / 6.37 in
Inner ring flange diameter
D1
≈ 168.402 mm / 6.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD065CP0 Thin Section Bearing
d
165.1 mm / 6.5 in
aperture
D
190.5 mm / 7.5 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 174.498 mm / 6.87 in
Inner ring flange diameter
D1
≈ 181.102 mm / 7.13 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD070CP0
KD075CP0
KD080CP0
KD090CP0
KD100CP0
KD110CP0
KD120CP0
KD140CP0
KD070CP0 Thin Section Bearing
d
177.8 mm / 7 in
aperture
D
203.2 mm / 8 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 187.198 mm / 7.37 in
Inner ring flange diameter
D1
≈ 193.802 mm / 7.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD075CP0 Thin Section Bearing
d
190.5 mm / 7.5 in
aperture
D
215.9 mm / 8.5 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 199.898 mm / 7.87 in
Inner ring flange diameter
D1
≈ 206.502 mm / 8.13 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD080CP0 Thin Section Bearing
d
203.2 mm / 8 in
aperture
D
228.6 mm / 9 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 212.598 mm / 8.37 in
Inner ring flange diameter
D1
≈ 219.202 mm / 8.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD090CP0 Thin Section Bearing
d
228.6 mm / 9 in
aperture
D
254 mm / 10 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm /0.5 in
width
d1
≈ 237.998 mm / 9.37 in
Inner ring flange diameter
D1
≈ 244.602 mm / 9.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD100CP0 Thin Section Bearing
d
254 mm / 10 in
aperture
D
279.4 mm / 11 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 263.398 mm / 10.37 in
Inner ring flange diameter
D1
≈ 270.002 mm / 10.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD110CP0 Thin Section Bearing
d
279.4 mm / 11 in
aperture
D
304.8 mm / 12 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 288.798 mm / 11.37 in
Inner ring flange diameter
D1
≈ 295.402 mm / 11.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD120CP0 Thin Section Bearing
d
203.2 mm / 8 in
aperture
D
219.075 mm / 8.625 in
outer diameter
B
7.938 mm / 0.3125 in
radial cross section
H
7.938 mm / 0.3125 in
width
d1
≈ 209.067 mm / 8.231 in
Inner ring flange diameter
D1
≈ 213.182 mm / 8.393 in
Outer ring flange diameter
3.969 mm / 0.1563 in
sphere diameter
1.016 mm / 0.04 in
Maximum radius of chamfer on shaft or bearing housing
KD140CP0 Thin Section Bearing
d
355.6 mm / 14 in
aperture
D
381 mm / 15 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 364.998 mm / 14.37 in
Inner ring flange diameter
D1
≈ 371.602 mm / 14.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD160CP0
KD180CP0
KD200CP0
KD210CP0
KD250CP0
KD300CP0
KD160CP0 Thin Section Bearing
d
406.4 mm / 16 in
aperture
D
431.8 mm / 17 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 415.798 mm / 16.37 in
Inner ring flange diameter
D1
≈ 422.402 mm / 16.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD180CP0 Thin Section Bearing
d
457.2 mm / 18 in
aperture
D
482.6 mm / 19 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 466.598 mm / 18.37 in
Inner ring flange diameter
D1
≈ 473.202 mm / 18.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD200CP0 Thin Section Bearing
d
508 mm / 20 in
aperture
D
533.4 mm / 21 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 517.398 mm / 20.37 in
Inner ring flange diameter
D1
≈ 524.002 mm / 20.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD210CP0 Thin Section Bearing
d
533.4 mm / 21 in
aperture
D
558.8 mm / 22 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 542.798 mm / 21.37 in
Inner ring flange diameter
D1
≈ 549.402 mm / 21.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD250CP0 Thin Section Bearing
d
635 mm / 25 in
aperture
D
660.4 mm / 26 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 644.98 mm / 25.37 in
Inner ring flange diameter
D1
≈ 651.002 mm / 25.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
KD300CP0 Thin Section Bearing
d
762 mm / 30 in
aperture
D
787.4 mm / 31 in
outer diameter
B
12.7 mm / 0.5 in
radial cross section
H
12.7 mm / 0.5 in
width
d1
≈ 771.398 mm / 30.37 in
Inner ring flange diameter
D1
≈ 778.002 mm / 30.63 in
Outer ring flange diameter
6.35 mm / 0.25 in
sphere diameter
1.524 mm / 0.06 in
Maximum radius of chamfer on shaft or bearing housing
The mainstream material of thin section bearing rings and steel balls is GCr15 bearing steel, which has high hardness and excellent wear resistance after heat treatment. Corrosion usage scenarios are made of 440C stainless steel, which has strong anti-rust ability and can meet the needs of humid and medium-containing working environments. The material selection of rolling elements and rings should be consistent to ensure that the materials of friction pairs are uniform. Cages are divided into two categories: brass and engineering plastics. The brass material is wear-resistant and not easy to deform, while the plastic material is light in weight and has low operating noise. The thermal expansion coefficients of all supporting materials are compatible with each other and adapt to the thin-walled structure of the bearing to ensure stable operation of the bearing.
Thin section bearings have the core characteristics of uniform cross-section thickness, lightness and thinness, and high rotation accuracy, which can greatly save equipment installation space. The compact structure of this bearing makes it suitable for various small precision rotating parts: Industrial robot joints use it to reduce joint volume; optical and semiconductor testing equipment use high-precision models to ensure stable positioning; medical imaging equipment relies on thin-wall design to streamline the body; small aviation instruments use lightweight to reduce their own weight. When selecting the model, the specifications should be matched based on the load and accuracy requirements to meet the operation requirements of various precision equipment.
High-quality Slim Section Bearings, Alternative to Kaydon, directly from the factory, inquiries welcome!
TKW is a high-end precision bearing manufacturer in China, Which have integrating design, R&D, and production skill. The company specializes in a wide range of products—including high-precision hybrid ceramic ball bearings, ultra-thin-section bearings, servo motor bearings, high-precision stainless steel bearings, vacuum pump bearings, magnetic levitation bearings, thin-walled crossed roller bearings, reactor bearings, all-ceramic bearings, bearings for the food and beverage industry, new energy vehicle bearings, excavator bearings, construction machinery bearings, and custom-engineered bearings—designed to meet the requirements of diverse operating conditions.
