Four Point Contact Ball Slewing Bearing

Categories Four Point Contact Ball Slewing Bearing, Slewing Bearing

The four-point contact ball slewing bearing is a type of slewing bearing with a special structure, whose core feature is that the rolling elements (steel balls) form four contact points with the raceways of the inner and outer rings.

Specifically, the bearing usually consists of two race rings, and the raceway is designed in an arc shape. When subjected to axial loads or overturning moments, the steel balls will simultaneously contact the raceways of the inner and outer rings at four points, enabling it to bear large axial loads, radial loads and overturning moments at the same time.

Range of external diameter: 300 mm to 10000 mm

Ring material: 42CrMo / 50Mn/ C45

Ball/roller material: GCr15

Cage material: steel 20 or ZL102 cast aluminum alloy

Spacer material: nylon 6 / nylon 66

Quenching hardness of raceway: HRC55-62

Tooth type: no gear, internal gear, external gear

Delivery time: 15-30 days

Overview of Four Point Contact Inner Tooth Slewing Bearings VKUKEN Four point contact ball slewing bearing composed of inner ring, outer ring, rolling element and isolation block. The steel ball is in contact with the arc raceway at four points, and can withstand the combined load of axial force, radial force and overturning moment at the same time. According to the needs of customers, the ring gear with toothless, internal or external teeth can be selected respectively, which is more convenient to install and use. If higher speeds are required, a structure with a disc cage can also be used. There are usually three series: 0.11, 012, and 0.13. Features of Customized Size Four Point Contact Inner Tooth Slewing Bearings VKUKEN four point contact ball slewing bearing has the characteristics of compact structure, high precision, flexible rotation and long service life. Applications of Customized Size Four Point Contact Inner Tooth Slewing Bearings VKUKEN bearings are widely used in steel, port crane, engineering machinery, radar, shield machine, radio telescope and other fields. Supplier of Customized Size Four Point Contact Inner Tooth Slewing Bearings As a well-known supplier of slewing bearings with 30 years’ experience, VKUKEN bearings is committed to providing slewing bearings with high quality and low price. The specific price needs to be comprehensively evaluated according to the size, load, material and accuracy requirements of the bearings. Please contact us if necessary.

Internal Gear

Bearing Model	Dimensions			Mounting Dimensions						Structural Dimension					Gear data					weight (kg)
	Dmm	dmm	Hmm	D1mm	D2mm	n	mm	dmmm	Lmm	n1	D3mm	d1mm	HImm	hmm	bmm	x	Mmm	Demm	z

013.25.355	448	262	70	412	298	20	18	M16	32	2	356	354	60	10	50	0	5	235	49	54
013.25.400	493	307	70	457	343	20	18	M16	32	2	401	399	60	10	50	0	6	276	48	62
013.25.450	543	357	70	507	393	20	18	M16	32	2	451	449	60	10	50	0	6	324	56	71
013.30.500	602	398	80	566	434	20	18	M16	32	4	501	498	70	10	60	0.5	5	367	74	85
014.30.500																	6	368.4	62
013.25.500	602	398	80	566	434	20	18	M16	32	4	501	499	70	10	60	0.5	5	367	74	85
014.25.500																	6	368.4	62
013.30.560	662	458	80	626	494	20	18	M16	32	4	561	558	70	10	60	0.5	5	427	86	95
014.30.560																	6	428.4	72
013.25.560	662	458	80	626	494	20	18	M16	32	4	561	559	70	10	60	0.5	5	427	86	95
014.25.560																	6	428.4	72
013.30.630	732	528	80	696	564	24	18	M16	32	4	631	628	70	10	60	0.5	6	494.4	83	110
014.30.630																	8	491.2	62
013.25.630	732	528	80	696	564	24	18	M16	32	4	631	629	70	10	60	0.5	6	494.4	83	110
014.25.630																	8	491.2	62
013.30.710	812	608	80	776	644	24	18	M16	32	4	711	708	70	10	60	0.5	6	572.4	96	120
014.30.710																	8	571.2	72
013.25.710	812	608	80	776	644	24	18	M16	32	4	711	709	70	10	60	0.5	6	572.4	96	120
014.25.710																	8	571.2	72
013.40.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	635.2	80	220
014.40.800																	10	634	64
013.30.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	635.2	80	220
014.30.800																	10	634	64
013.40.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	739.2	93	240
014.40.900																	10	734	74
013.30.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	739.2	93	240
014.30.900																	10	734	74
013.40.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	824	83	270
014.40.1000																	12	820.8	69
013.30.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	824	83	270
014.30.1000																	12	820.8	69
013.40.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	944	95	300
014.40.1120																	12	940.8	79
013.30.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	944	95	300
014.30.1120																	12	940.8	79
013.45.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1252	1248	100	10	90	0.5	12	1049	88	420
014.45.1250																	14	1042	75
013.35.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1251	1248	100	10	90	0.5	12	1049	88	420
014.35.1250																	14	11042	75

External Gear

Bearing Model	Dimensions			Mounting Dimensions						Structural Dimension					Gear data					weight (kg)
	Dmm	dmm	Hmm	D1mm	D2mm	n	omm	dmmm	Lmm	n1	D3mm	d1mm	H1mm	hmm	bmm	x	Mmm	Demm	z
011.45.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1402	1398	100	10	90	0.5	12	1605.6	131	480
012.45.1400																	14	1607.2	112
011.35.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1401	1398	100	10	90	0.5	12	1605.6	131	480
012.35.1400																	14	1607.2	112
011.45.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1602	1598	100	10	90	0.5	14	1817.2	127	550
012.45.1600																	16	1820.8	111
011.35.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1601	1598	100	10	90	0.5	14	1817.2	127	550
012.35.1600																	16	1820.8	111
011.45.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1802	1798	100	10	90	0.5	14	2013.2	141	610
012.45.1800																	16	2012.8	123
011.35.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1801	1798	100	10	90	0.5	14	2013.2	141	610
012.35.1800																	16	2012.8	123
011.60.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2002	1998	132	12	120	0.5	16	2268.8	139	1100
012.60.2000																	18	2264.4	123
011.40.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2001	1998	132	12	120	0.5	16	2268.8	139	1100
012.40.2000																	18	2264.4	123
011.60.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2242	2238	132	12	120	0.5	16	2492.8	153	1250
012.60.2240																	18	2498.4	136
011.40.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2241	2238	132	12	120	0.5	16	2492.8	153	1250
012.40.2240																	18	2498.4	136
011.60.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2502	2498	132	12	120	0.5	18	2768.4	151	1400
012.60.2500																	20	2776	136
011.40.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2501	2498	132	12	120	0.5	18	2768.4	151	1400
012.40.2500																	20	2776	136
011.60.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	3074.4	168	1600
012.60.2800																	20	3076	151
011.40.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	3074.4	168	1600
012.40.2800																	20	3076	151
011.75.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	3476	171	2800
012.75.3150																	22	3471.6	155
011.50.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	3476	171	2800
012.50.3150																	22	3471.6	155
011.75.3550	3776	3322	174	3686	3014	56	45	M42	84	8	3552	3547	162	12	150	0.5	20	3876	191	3500
012.75.3550																	22	3889.6	174
011.50.3550	3776	3322	174	3686	3014	56	45	M42	84	10	3552	3548	162	12	150	0.5	20	3876	191	3500
012.50.3550																	22	3889.6	174
011.75.4000	4226	3772	174	4136	3864	60	45	M42	84	10	4002	3997	162	12	150	0.5	22	4329.6	194	4200
012.75.4000																	25	4345	171
011.50.4000	4226	3772	174	4136	3864	60	45	M42	84	10	4002	3998	162	12	150	0.5	22	4329.6	194	4200
012.50.4000																	25	4345	171
011.75.4500	4726	4272	174	4636	4364	60	45	M42	84	10	4502	4497	162	12	150	0.5	22	4835.6	217	5100
012.75.4500																	25	4845	191
011.50.4500	4726	4272	174	4636	4364	60	45	M42	84	10	4502	4498	162	12	150	0.5	22	4835.6	217	5100
012.50.4500																	25	4845	191

Without Gear

Bearing Model	Dimensions			Mounting Dimensions						Structural Dimension					weight (kg)
Bearing Model	Dmm	dmm	Hmm	D1mm	D2mm	n	mm	dmmm	Lmm	n1	D3mm	d1mm	H1mm	hmm	weight (kg)
010.20.200	280	120	60	248	152	12	16	M14	28	2	201	199	50	10	20
010.20.224	304	144	60	272	176	12	16	M14	28	2	225	223	50	10	22
010.20.250	330	170	60	298	202	18	16	M14	28	2	251	249	50	10	25
010.20.280	360	200	60	328	232	18	16	M14	28	2	281	279	50	10	28
010.25.315	408	222	70	372	258	20	18	M16	32	2	316	314	60	10	44
010.25.355	448	262	70	412	298	20	18	M16	32	2	356	354	60	10	49
010.25.400	493	307	70	457	343	20	18	M16	32	2	401	399	60	10	56
010.25.450	543	357	70	507	393	20	18	M16	32	2	451	449	60	10	62
010.30.500	602	398	80	566	434	20	18	M16	32	4	501	498	70	10	85
01025.500	1602	398	80	566	434	20	18	M16	32	4	501	499	70	10	85
010.30.560	662	458	80	626	494	20	18	M16	32	4	561	558	70	10	95
010.25.560	662	458	80	626	494	20	18	M16	32	4	561	559	70	10	95
010.30.630	732	528	80	696	564	24	18	M16	32	4	631	628	70	10	110
010.25.630	I732	528	80	696	564	24	18	M16	32	4	631	629	70	10	110
010.30.710	812	608	80	776	644	24	18	M16	32	4	711	708	70	10	120
010.25.710	812	608	80	776	644	24	18	M16	32	4	711	709	70	10	120
010.40.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	220
010.30.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	220
010.40.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	240
010.30.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	240
010.40.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	270
010.30.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	270
010.40.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	300
010.30.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	300
010.45.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1252	1248	100	10	420
010.35.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1251	1248	100	10	420
010.45.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1402	1398	100	10	480
010.35.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1401	1398	100	10	480
011.45.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1602	1598	100	10	550
010.35.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1601	1598	100	10	550
010.45.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1802	1798	100	10	610
010.35.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1801	1798	100	10	610
010.60.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2002	1998	132	12	1100
010.40.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2001	1998	132	12	1100
010.60.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2242	2238	132	12	1250
010.40.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2241	2238	132	12	1250
010.60.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2502	2498	132	12	1400
010.40.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2501	2498	132	12	1400
010.60.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	1600
010.40.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	1600
010.75.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	2800
010.50.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	2800
010.75.3550	3776	3322	174	3686	3014	56	45	M42	84	8	3552	3547	162	12	3500
010.50.3550	3776	3322	174	3686	3014	56	45	M42	84	10	3552	3548	162	12	3500
010.75.4000	4226	3772	174	4136	3864	60	45	M42	84	10	4002	3997	162	12	4200
010.50.4000	4226	3772	174	4136	3864	60	45	M42	84	10	4002	3998	162	12	4200
010.75.4500	4726	4272	174	4636	4364	60	45	M42	84	10	4502	4497	162	12	5100
010.50.4500	4726	4272	174	4636	4364	60	45	M42	84	10	4502	4498	162	12	5100

1. Combined Load Capacity in a Single Raceway

Each ball has four-point contact with the raceway, enabling the bearing to carry axial loads (both directions), radial loads, and overturning moments simultaneously.
One bearing can replace multiple bearing sets, simplifying mechanical design.

2. Compact, Lightweight Structure

Compared with roller-type slewing bearings, ball slewing bearings feature smaller cross-sections and lower weight.
Ideal for applications with strict space and weight limitations.

3. Smooth Rotation with Low Friction

Point contact between balls and raceways results in low rotational resistance.
Suitable for applications requiring smooth, continuous rotation and energy efficiency.

4. Cost-Effective Solution

Lower material consumption and simpler internal structure reduce overall cost.
Provides an excellent performance-to-cost ratio for medium-load applications.

5. Flexible Design Configurations

Available with internal gear, external gear, or without gear.
Customization options include mounting holes, seals, lubrication systems, and preload settings.

6. Easy Installation and Maintenance

Integrated slewing structure simplifies installation.
Standard lubrication and sealing solutions support long service life with minimal maintenance.

1. Construction Machinery

Truck-mounted cranes, concrete pumps, aerial platforms
Provides reliable slewing under moderate loads and frequent operation

2. Material Handling Equipment

Rotary tables, stackers, palletizing systems
Ensures smooth rotation and stable positioning

3. Industrial Automation

Positioning platforms, rotary indexing tables
Suitable for compact automation systems with combined load requirements

4. Packaging and Food Processing Machinery

Turntables, filling and sorting systems
Benefits from smooth motion, low noise, and compact design

5. Medical and Rehabilitation Equipment

Patient handling platforms, rotating medical beds
Supports safe and smooth rotation with low friction

6. Renewable Energy and Environmental Equipment

Small wind turbines, solar tracking systems
Enables accurate orientation with low energy consumption

7. Light-Duty Robotics and Manipulators

Robotic bases and rotary joints
Delivers balanced load capacity with precise, smooth motion

VKUKEN has over 30 years of experience in bearing design and manufacturing. We can customize non-standard bearings according to customer drawings, or we can measure and create drawings of existing bearings on-site and then manufacture custom bearings based on those drawings. Our team of professional engineers has over 20 years of experience in bearing design and measurement.

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application engineer

Hi, I am Maxwell, I am an engineer in the field of bearing applications. I majored in mechanical and electromechanical engineering during college. After graduation, I worked for the top three "SKF" bearing companies in the world for ten years , during which I went to dozens of customers in different industries to help them solve problems in bearing applications; later I joined VKUKEN Bearing Manufacturing, and I will share bearing technical knowledge on this website from time to time. If you are a customer Please contact me to help you solve your problem; if you are also a technical expert in bearings, I am very willing to exchange technical knowledge about bearings with you.

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