Deep Groove Thin Section Ball Bearing

Komel Bearing Co., Ltd. is a leading Deep Groove Thin Section Ball Bearing manufacturer and supplier in China. We have been specialized in bearing filed for many years. Our products have a good price advantage and we have exported our bearings to many markets. We look forward to become your long-term partner in China.

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Product Description

The Deep Groove Thin Section Ball Bearing produced by KOMEL are high-end bearing products integrating precision manufacturing technology and structural innovation. Their core design concept lies in achieving high load-bearing capacity, high precision, and high-speed performance within limited space through ultra-thin section and proportional dimension optimization.

Equal-Section Proportional Design: The ratio of bearing width (B) to inner diameter (d) is constant (e.g., B/d = 0.1–0.2). Section dimensions of different specifications strictly follow the same proportional relationship, ensuring standardized design and interchangeability.

Ultra-Thin Wall Structure: With inner and outer ring wall thicknesses only 1/3 to 1/2 that of ordinary bearings (e.g., wall thickness ≤2mm for a φ50mm inner diameter bearing), the bearings adopt a cold rolling forming + precision grinding process, increasing material utilization by 40% and reducing weight by 50%.

High-Performance Material: Made of GCr15 bearing steel treated with ultrafine bainite quenching, achieving a hardness of HRC62–64. Fatigue life is doubled compared to traditional processes.

Deep Groove Thin Section Ball Bearing

Precision Grade:

P4/P5 Class: Radial run out ≤5μm, meeting the rotational precision requirements for precision instruments (e.g., medical CT rotating tables).

ABEC-7 Class: Vibration noise ≤25dB, supporting ultra-high-speed operation up to 150,000 r/min (e.g., drone flight control gyroscopes).

This design ensures the bearings excel in compact mechanical systems requiring high precision, lightweight construction, and reliable performance under complex loads.

Parameter (Specification)

KAA SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KAA10CL0	1.000	1.375	1.140	1.235	290	150	0.026
KAA15CL0	1.500	1.875	1.640	1.735	400	180	0.039
KAA17CL0	1.750	2.125	1.890	1.985	460	200	0.045

KA SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KA020CP0	2.000	2.500	2.186	2.314	680	320	0.1
KA025CP0	2.500	3.000	2.686	2.814	830	360	0.13
KA030CP0	3.000	3.500	3.186	3.314	990	410	0.15
KA035CP0	3.500	4.000	3.686	3.814	1140	450	0.18
KA040CP0	4.000	4.500	4.186	4.314	1290	480	0.19
KA042CP0	4.250	4.750	4.436	4.564	1370	500	0.2
KA045CP0	4.500	5.000	4.686	4.814	1440	520	0.22
KA047CP0	4.750	5.250	4.936	5.064	1520	540	0.23
KA050CP0	5.000	5.500	5.186	5.314	1590	560	0.24
KA055CP0	5.500	6.000	5.686	5.814	1750	590	0.25
KA060CP0	6.000	6.500	6.186	6.314	1900	630	0.28
KA065CP0	6.500	7.000	6.686	6.814	2050	660	0.3
KA070CP0	7.000	7.500	7.186	7.314	2200	690	0.31
KA075CP0	7.500	8.000	7.686	7.814	2350	720	0.34
KA080CP0	8.000	8.500	8.186	8.314	2500	750	0.38
KA090CP0	9.000	9.500	9.186	9.314	2810	810	0.44
KA100CP0	10.000	10.500	10.186	10.314	3110	870	0.5
KA110CP0	11.000	11.500	11.186	11.314	3410	930	0.52
KA120CP0	12.000	12.500	12.186	12.314	3720	980	0.56

KB SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KB020CP0	2.000	2.625	2.231	2.393	930	450	0.16
KB025CP0	2.500	3.125	2.731	2.893	1140	520	0.20
KB030CP0	3.000	3.625	3.231	3.393	1340	580	0.24
KB035CP0	3.500	4.125	3.731	3.893	1540	630	0.27
KB040CP0	4.000	4.625	4.231	4.393	1750	690	0.30
KB042CP0	4.250	4.875	4.481	4.643	1830	710	0.31
KB045CP0	4.500	5.125	4.731	4.893	1950	740	0.33
KB047CP0	4.750	5.375	4.981	5.143	2030	760	0.34
KB050CP0	5.000	5.625	5.231	5.393	2150	790	0.38
KB055CP0	5.500	6.125	5.731	5.893	2360	840	0.41
KB060CP0	6.000	6.625	6.231	6.393	2560	890	0.44
KB065CP0	6.500	7.125	6.731	6.893	2760	930	0.47
KB070CP0	7.000	7.625	7.231	7.393	2970	980	0.5
KB075CP0	7.500	8.125	7.731	7.893	3170	1020	0.53
KB080CP0	8.000	8.625	8.231	8.393	3370	1070	0.57
KB090CP0	9.000	9.625	9.231	9.393	3780	1150	0.66
KB100CP0	10.000	10.625	10.231	10.393	4190	1230	0.73
KB110CP0	11.000	11.625	11.231	11.393	4590	1310	0.75
KB120CP0	12.000	12.625	12.231	12.393	5000	1390	0.83
KB140CP0	14.000	14.625	14.231	14.393	5810	1530	1.05
KB160CP0	16.000	16.625	16.231	16.393	6620	1670	1.20
KB180CP0	18.000	18.625	18.231	18.383	7440	1810	1.35
KB200CP0	20.000	20.625	20.231	20.393	8250	1940	1.5

KC SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KC040CP0	4.000	4.750	4.277	4.473	2100	880	0.45
KC042CP0	4.250	5.000	4.527	4.723	2220	920	0.47
KC045CP0	4.500	5.250	4.777	4.973	2340	950	0.48
KC047CP0	4.750	5.500	5.027	5.223	2460	980	0.5
KC050CP0	5.000	5.750	5.277	5.473	2590	1010	0.58
KC055CP0	5.500	6.250	5.777	5.973	2830	1080	0.59
KC060CP0	6.000	6.750	6.277	6.473	3070	1140	0.63
KC065CP0	6.500	7.250	6.777	6.973	3310	1200	0.68
KC070CP0	7.000	7.750	7.277	7.473	3550	1250	0.73
KC075CP0	7.500	8.250	7.777	7.973	3790	1310	0.78
KC080CP0	8.000	8.750	8.277	8.473	4030	1360	0.84
KC090CP0	9.000	975.000	9.277	9.473	4510	1470	0.94
KC100CP0	10.000	10.750	10.277	10.473	4990	1570	1.06
KC110CP0	11.000	11.750	11.277	11.473	5470	1670	1.16
KC120CP0	12.000	12.750	12.277	12.473	5950	1770	1.25
KC140CP0	14.000	14.750	14.277	14.473	6910	1950	1.52
KC160CP0	16.000	16.750	16.277	16.473	7880	2130	1.73
KC180CP0	18.000	18.750	18.277	18.473	8840	2300	1.94
KC200CP0	20.000	20.750	20.277	20.473	9800	2470	2.16
KC250CP0	25.000	25.750	25.277	25.473	12200	2850	2.69
KC300CP0	30.000	30.750	30.277	30.473	14610	3220	3.21

KD SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KD040CP0	4.000	5.000	4.370	4.630	3080	1410	0.78
KD042CP0	4.250	5.250	4.620	4.880	3190	1440	0.83
KD045CP0	4.500	5.500	4.870	5.130	3420	1510	0.88
KD047CP0	4.750	5.750	5.120	5.380	3530	1540	0.94
KD050CP0	5.000	6.000	5.370	5.630	3760	1610	1.00
KD055CP0	5.500	6.500	5.870	6.130	4100	1700	1.06
KD060CP0	6.000	7.000	6.370	6.630	4450	1800	1.16
KD065CP0	6.500	7.500	6.870	7.130	4790	1890	1.22
KD070CP0	7.000	8.000	7.370	7.630	5130	1980	1.31
KD075CP0	7.500	9.000	7.870	8.130	5470	2060	1.41
KD080CP0	8.000	9.000	8.370	8.630	5810	2150	1.53
KD090CP0	9.000	10.000	9.370	9.630	6500	2320	1.72
KD100CP0	10.000	11.000	10.370	10.630	7180	2470	1.88
KD110CP0	11.000	12.000	11.370	11.630	7870	2630	2.06
KD120CP0	12.000	13.000	12.370	12.630	8550	2780	2.25
KD140CP0	14.000	15.000	14.370	14.630	9920	3070	2.73
KD160CP0	16.000	17.000	16.370	16.630	11290	3350	3.10
KD180CP0	18.000	19.000	18.370	18.630	12650	3610	3.48
KD200CP0	20.000	21.000	20.370	20.630	14020	3870	3.85
KD250CP0	25.000	26.000	25.370	25.630	17440	4470	4.79
KD300CP0	30.000	31.000	30.370	30.360	20860	5040	5.73

KF SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KF040CP0	4.000	5.500	4.555	4.945	5360	2730	1.90
KF042CP0	4.250	5.750	4.805	5.195	5640	2830	2.00
KF045CP0	4.500	6.000	5.055	5.445	5930	2920	2.10
KF047CP0	4.750	6.250	5.305	5.695	6210	3010	2.20
KF050CP0	5.000	6.500	5.555	5.945	6490	3100	2.30
KF055CP0	5.500	7.000	6.055	6.445	7050	3280	2.50
KF060CP0	6.000	7.500	6.555	6.945	7620	3450	2.70
KF065CP0	6.500	8.000	7.055	7.445	8180	3620	2,9
KF070CP0	7.000	8.500	7.555	7.945	8750	3790	3.20
KF075CP0	7.500	9.000	8.055	8.445	9310	3950	3.40
KF080CP0	8.000	9.500	8.555	8.945	9880	4100	3.50
KF090CP0	9.000	10.500	9.555	9.945	11000	4410	3.90
KF100CP0	10.000	11.500	10.555	10.945	12130	4710	4.30
KF110CP0	11.000	12.500	11.555	11.945	13260	5000	4.80
KF120CP0	12.000	13.500	12.555	12.945	14390	5280	5.20
KF140CP0	14.000	15.500	14.555	14.945	16650	5810	6.00
KF160CP0	16.000	17.500	16.555	16.945	18900	6330	7.10
KF180CP0	18.000	19.500	18.555	18.945	21160	6820	7.90
KF200CP0	20.000	21.500	20.555	20.945	23420	7300	8.90
KF250CP0	25.000	26.500	25.555	25.945	29060	8430	10.90
KF300CP0	30.000	31.500	30.555	30.945	34700	9490	13.00
KF350CP0	35.000	36.500	35.555	35.945	40350	10490	15.10
KF400CP0	40.000	41.500	40.555	40.945	45990	11450	17.20

KG SERIES
Kaydon Bearing Number	Dimensions in Inches				Radial Capacity (lbs.)①
							Weight
							in
							Pounds
	Bore	Outside Diameter	Land	Land	Static②	Dynamic
	Bore	Outside Diameter	Dia. L1	Dia. L2	Static②	Dynamic
KG040CP0	4.000	6.000	4.742	5.258	8210	4500	3.60
KG042CP0	4.250	6.250	4.992	5.508	8210	4500	3.80
KG045CP0	4.500	6.500	5.242	5.758	8760	4700	4.00
KG047CP0	4.750	6.750	5.492	6.008	9300	4890	4.10
KG050CP0	5.000	7.000	5.742	6.258	9850	5080	4.30
KG055CP0	5.500 0	7.500	6.242	6.758	10400	5270	4.70
KG060CP0	6.000	8.000	6.742	7.258	11490	5630	5.10
KG065CP0	6.500	8.500	7.242	7.758	12040	5810	5.40
KG070CP0	7.000	9.000	7.742	8.258	13130	6160	5.80
KG075CP0	7.500	9.500	8.242	8.758	13680	6330	6.10
KG080CP0	8.000	10.000	8.742	9.258	14770	6660	6.50
KG090CP0	9.000	11.000	9.742	10.258	16420	7150	7.20
KG100CP0	10.000	12.000	10.742	11.258	18060	7620	7.90
KG110CP0	11.000	13.000	11.742	12.258	19700	8070	8.60
KG120CP0	12.000	14.000	12.742	13.258	21340	8510	9.30
KG140CP0	14.000	16.000	14.742	15.258	24620	9360	10.80
KG160CP0	16.000	18.000	16.742	17.258	27910	10180	12.30
KG180CP0	18.000	20.000	18.742	19.258	31190	10960	13.70
KG200CP0	20.000	22.000	20.742	21.258	34470	11720	15.80
KG250CP0	25.000	27.000	25.742	26.258	42680	13510	19.50
KG300CP0	30.000	32.000	30.742	31.258	50890	15190	23.30
KG350CP0	35.000	37.000	35.742	36.258	59100	16790	27.10
KG400CP0	40.000	42.000	40.742	41.258	67310	18310	30.80

Application

Aerospace: Used in aircraft components like gyroscopes in autopilots and aeroengine accessories, reducing weight and enhancing precision. In satellites, it supports equipment such as camera focus mechanisms and solar panel joints, withstanding harsh space conditions.

Precision Instruments: Applied in optical devices (e.g., telescope focus systems) and electronic measuring tools (e.g., CMMs), ensuring high accuracy.

Medical Equipment: Vital for CT scanners and MRI systems, guaranteeing stable rotation for clear imaging. Ideal for surgical robots and rehab devices due to its compact, precise design.

Industrial Automation: Enables smooth movement in robotic joints and optimizes automated production lines, boosting efficiency.

Semiconductor Manufacturing: Meets the high-precision and cleanliness demands of lithography and wafer handling equipment.

Consumer Electronics: Fits snugly in wearable and ensures quiet, stable operation in HDDs.

New Energy: Used in wind turbines and electric vehicles, improving reliability and energy efficiency while reducing weight.

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