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JA-CP0 Series Thin Section Bearings Precision Slewing Bearings
JA-CP0 is a double-sealed, uniform cross-section thin-walled bearing with a standard 6.35mm square cross-section and a C-type radial contact structure, capable of withstanding moderate radial and bidirectional axial loads. It features a built-in rubber seal, pre-lubricated at the factory, dustproof and impurity resistant, and high rotational precision, making it suitable for medical equipment, optical instruments, and automated precision rotary platforms.
Maximum radius of chamfer on shaft or bearing housing
JA025CP0 Thin Section Bearing
d
63.5 mm / 2.5 in
aperture
D
76.2 mm / 3 in
outer diameter
B
6.35 mm / 0.25 in
radial cross section
H
6.35 mm / 0.25 in
width
d1
≈ 68.224 mm / 2.686 in
Inner ring flange diameter
d2
≈ 67.259 mm / 2.648 in
Inner ring groove diameter
D1
≈ 71.476 mm / 2.814 in
Outer ring flange diameter
D2
≈ 72.542 mm / 2.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA030CP0 Thin Section Bearing
d
76.2 mm / 3 in
aperture
D
88.9 mm / 3.5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 80.924 mm / 3.186 in
Inner ring flange diameter
d2
≈ 79.959 mm / 3.148 in
Inner ring groove diameter
D1
≈ 84.176 mm / 3.314 in
Outer ring flange diameter
D2
≈ 85.242 mm / 3.356 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA035CP0 Thin Section Bearing
d
88.9 mm / 3.5 in
aperture
D
101.6 mm / 4 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 93.624 mm / 3.686 in
Inner ring flange diameter
d2
≈ 92.659 mm / 3.648 in
Inner ring groove diameter
D1
≈ 96.876 mm / 3.814 in
Outer ring flange diameter
D2
≈ 97.942 mm / 3.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA040CP0 Thin Section Bearing
d
101.6 mm / 4 in
aperture
D
114.3 mm / 4.5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 106.324 mm / 4.186 in
Inner ring flange diameter
d2
≈ 105.359 mm / 4.148 in
Inner ring groove diameter
D1
≈ 109.576 mm / 4.314 in
Outer ring flange diameter
D2
≈ 110.642 mm / 4.356 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA042CP0 Thin Section Bearing
d
107.95 mm / 4.25 in
aperture
D
120.65 mm / 4.75 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 112.674 mm / 4.436 in
Inner ring flange diameter
d2
≈ 111.709 mm / 4.398 in
Inner ring groove diameter
D1
≈ 115.926 mm / 4.564 in
Outer ring flange diameter
D2
≈ 116.992mm / 4.606 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA045CP0 Thin Section Bearing
d
114.3 mm / 4.5 in
aperture
D
127 mm / 5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 119.024 mm / 4.686 in
Inner ring flange diameter
d2
≈ 118.059 mm / 4.648 in
Inner ring groove diameter
D1
≈ 122.276 mm / 4.814 in
Outer ring flange diameter
D2
≈ 123.342 mm / 4.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA047CP0
JA050CP0
JA055CP0
JA060CP0
JA065CP0
JA070CP0
JA075CP0
JA047CP0 Thin Section Bearing
d
120.65 mm / 4.75 in
aperture
D
133.35 mm / 5.25 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 125.374 mm / 4.936 in
Inner ring flange diameter
d2
≈ 124.409 mm / 4.898 in
Inner ring groove diameter
D1
≈ 128.626 mm / 5.064 in
Outer ring flange diameter
D2
≈ 129.692 mm / 5.106 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA050CP0 Thin Section Bearing
d
127 mm / 5 in
aperture
D
139.7 mm / 5.5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 131.724 mm / 5.186 in
Inner ring flange diameter
d2
≈ 130.759 mm / 5.148 in
Inner ring groove diameter
D1
≈ 134.976 mm / 5.314 in
Outer ring flange diameter
D2
≈ 136.042 mm / 5.356 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA055CP0 Thin Section Bearing
d
139.7 mm / 5.5 in
aperture
D
152.4 mm / 6 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 144.424 mm / 5.686 in
Inner ring flange diameter
d2
≈ 143.459 mm / 5.648 in
Inner ring groove diameter
D1
≈ 147.676 mm / 5.814 in
Outer ring flange diameter
D2
≈ 148.742 mm / 5.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA060CP0 Thin Section Bearing
d
152.4 mm / 6 in
aperture
D
165.1 mm / 6.5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 157.124 mm / 6.186 in
Inner ring flange diameter
d2
≈ 156.159 mm / 6.148 in
Inner ring groove diameter
D1
≈ 160.376 mm / 6.314 in
Outer ring flange diameter
D2
≈ 161.442 mm / 6.356 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA065CP0 Thin Section Bearing
d
165.1 mm / 6.5 in
aperture
D
177.8 mm / 7 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 169.824 mm / 6.686 in
Inner ring flange diameter
d2
≈ 168.859 mm / 6.648 in
Inner ring groove diameter
D1
≈ 173.076 mm / 6.814 in
Outer ring flange diameter
D2
≈ 174.142 mm / 6.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA070CP0 Thin Section Bearing
d
177.8 mm / 7 in
aperture
D
190.5 mm / 7.5 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 182.524 mm / 7.186 in
Inner ring flange diameter
d2
≈ 181.559 mm / 7.148 in
Inner ring groove diameter
D1
≈ 185.776 mm / 7.314 in
Outer ring flange diameter
D2
≈ 186.842mm / 7.356 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
JA075CP0 Thin Section Bearing
d
190.5 mm / 7.5 in
aperture
D
203.2 mm / 8 in
outer diameter
H
6.35 mm / 0.25 in
radial cross section
B
6.35 mm / 0.25 in
width
d1
≈ 195.224 mm / 7.686 in
Inner ring flange diameter
d2
≈ 194.259 mm / 7.648 in
Inner ring groove diameter
D1
≈ 198.476 mm / 7.814 in
Outer ring flange diameter
D2
≈ 199.542 mm / 7.856 in
outer groove diameter
3.175 mm / 0.125 in
sphere diameter
0.635 mm / 0.025 in
Maximum radius of chamfer on shaft or bearing housing
slim section bearings are composed of four parts: inner ring, outer ring, rolling elements, and cage. The cross-sectional dimensions of the inner and outer rings are uniform, the cross-section is standard square, and the wall thickness is uniform and thin. The inner and outer ring raceways are integrally formed, the raceway size is fixed, and the cross-sectional specifications remain unchanged when the inner diameter changes. The rolling elements are small steel balls, evenly arranged between the inner and outer raceways; the cage separates the steel balls, limits the distance between the rolling elements, and avoids mutual friction. There is no widening or thickening structure in the inner and outer rings, the overall wall thickness is consistent, the raceway surface is regular, and the cross-sectional parameters of the parts are uniform. The entire set of bearings only differs in inner diameter among specifications, and the rest of the structural cross-section dimensions are exactly the same.
The high-precision series of thin section bearings includes three accuracy levels: P5, P4, and P2. The smaller the level value, the higher the accuracy standard. P5 level controls the dimensional tolerances of the inner and outer diameters and cross-sectional thickness of the ferrules, restricts the shape and position accuracy such as raceway roundness and end face parallelism, and controls the rotational run-out deviation within a fixed range. The P4 level tolerance zone is further narrowed compared to P5, the raceway waviness is optimized, and the radial and end face rotation run-out accuracy is significantly improved. P2 is an ultra-precision grade. Dimensional tolerances, raceway profile errors, and geometric deviations all adopt minimum tolerance standards, and rotation run-out control reaches the highest standards.Bearings at all levels have independent quantitative indicators for dimensional consistency, raceway surface accuracy, axial and radial run-out, and the accuracy classification system is clear and standardized.
We are a source manufacturer of bearings, offering excellent quality. Inquiries are welcome!
TKW bearings is a high-end precision bearing manufacturing enterprise integrating design, research and development and production. It focuses on high-precision hybrid ceramic ball bearings, ultra-thin wall 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, food and beverage bearings, new energy vehicle bearings, excavator bearings, construction machinery bearings and special customized bearings, which can meet the needs of different working conditions.
