Rks. 062.20.0644 Port Ship Unloader Slewing Bearing Ship Repair Parts Deck Crane Bearing

Product Description

Rks. 062.20.0644 Port Ship Unloader Slewing Bearing Ship Repair Parts Deck Crane Bearing

Product Description

1. Overview & Product Definition

The RKS.062 series is a specialized Four-Point Contact Ball Bearing featuring integral internal gearing on its inner ring. This design ingeniously combines a high-performance slewing bearing with a built-in gear mechanism. It is engineered to provide a compact, robust, and highly efficient solution for applications that require the support of complex loads while transmitting drive torque through an internally meshing pinion.

2. Key Design Features

• Four-Point Contact Design: At the heart of the bearing is its optimized raceway geometry. Each ball makes contact with the inner and outer rings at four distinct points. This singular row design is exceptionally capable of accommodating combined loads-including axial forces, radial loads, and tilting moments-simultaneously.

• Integral Internal Spur Gear: The defining feature of the RKS.062 series is the precision-machined internal spur gear on the inner ring. This configuration allows a centrally located pinion to drive the system from within the bearing's diameter, offering distinct mechanical advantages.

• High-Grade Bearing Steel: Manufactured from vacuum-degassed, high-carbon chromium steel, these bearings provide a high load-carrying capacity, exceptional durability, and superior resistance to wear.

• Robust Construction: Designed for high static and dynamic load ratings, ensuring reliability in heavy-duty applications.

• Precision Engineering: Both the bearing components and the internal gear teeth are produced to  exacting tolerances, ensuring smooth operation, precise positioning, and efficient power transmission.

3. Primary Advantages & Benefits

• Compact Drive Integration: The internal gear design allows the drive pinion to be housed within the envelope of the bearing, resulting in a more compact and space-saving overall assembly compared to external gear designs.

• Protected Gear Mechanism: The internal gear teeth are partially shielded by the bearing structure, offering a degree of protection from direct exposure to external contaminants and potential damage.

• Favorable Meshing Conditions: Internal gear and pinion meshing often allows for more teeth in contact simultaneously, which can lead to smoother operation, higher torque transmission capacity, and reduced wear.

• High Load Versatility: The four-point contact design provides unmatched flexibility in handling complex and fluctuating load combinations with a single bearing.

• Simplified System Design: Integrating the bearing and gear reduces part count, simplifies the surrounding structure, and streamlines the manufacturing and assembly process.

4. Typical Applications

The RKS.062 series is ideally suited for applications where a compact drive solution and protected gearing are paramount:

• Slewing Drives and Rotary Actuators: A fundamental component in compact slewing drives for construction, mining, and solar tracking equipment.

• Turntables and Indexing Platforms: Used in manufacturing, assembly lines, and material handling turntables.

• Robotics: Found in the base and major joints of industrial robots where a compact rotational unit is required.

• Radar and Antenna Pedestals: Provides precise rotation and stability for communication and surveillance systems.

• Wind Turbine Yaw and Pitch Systems (in smaller-scale applications).

• Medical Imaging Equipment: Such as MRI and CT scanners, where smooth, precise, and reliable rotation is critical.

5. Technical Specifications (General)

• Bearing Type: Four-Point Contact Ball Bearing

• Gearing: Internal Spur Gear on the inner ring.

• Size Range: The RKS.062 series is available in a range of standard sizes with specific bore diameters, gear modules, and cross-sections. (For precise dimensions, refer to the official RKS.062 catalog).

• Load Capacity: Engineered to support high axial, radial, and moment loads. Exact values for dynamic and static load ratings are specified in the technical data sheets.

• Lubrication: Requires periodic re-lubrication via standard grease fittings. The appropriate lubricant depends on operational speed, temperature, and environmental conditions.

• Mounting: Typically secured via threaded holes in the bearing rings.

6. Selection and Mounting Considerations

Selecting the correct RKS.062 bearing requires a thorough analysis of several factors:

• Load Calculation: A precise analysis of all applied axial, radial, and moment loads is essential for correct bearing selection.

• Gear Drive Design: Careful calculation of the mating pinion, gear mesh alignment, backlash, and transmitted torque is crucial for optimal performance and longevity.

• Operating Environment: Consider the need for sealing to protect the gear mesh and bearing raceways from contaminants like dust, moisture, or chemicals.

• Structural Rigidity: The housing and supporting structures must be designed to be rigid enough to prevent deformation under load, which could misalign the gear mesh and reduce bearing life.

• Speed and Lubrication: Suitable for slow to moderate rotational speeds. A proper lubrication regimen is vital for the health of both the bearing and the gear teeth.
  
  

  Main dimensions				Fixing holes					Gear teeth			Tooth force		Mass	Fig  N°	Basic load rating		curves*		Designation
  De	Dm	Di	Fe	he	Ne	Fi	hi	Ni	D	m	Z	Norm. Tooth	Max .   Tooth   force			axial dyn.C	axial stat.Co	raceways ( r)	bolt (b)
  mm	mm	mm	mm	mm		mm	mm		mm			kN	kN	Kg		kN	kN
  486	414	325	460	14	24	375	M12	24	335	5	67	18	34	31	C	169	560	1r	1b	RKS.062.20.0414
  616	544	444	590	14	32	505	M12	32	456	6	76	25	45	42	C	188	740	2r	2b	RKS.062.20.0544
  716	644	546	690	14	36	605	M12	36	558	6	93	25	45	50	C	200	880	3r	3b	RKS.062.20.0644
  816	744	648	790	14	40	705	M12	40	660	6	110	25	45	58	C	211	1010	4r	4b	RKS.062.20.0744
  916	844	736	890	14	40	805	M12	40	752	8	94	33	60	69	C	222	1150	5r	5b	RKS.062.20.0844
  1016	944	840	990	14	44	905	M12	44	856	8	107	33	60	76	C	231	1280	6r	6b	RKS.062.20.0944
  1166	1094	984	1140	14	48	1055	M12	48	1000	8	125	33	60	91	C	244	1490	7r	7b	RKS.062.20.1094
  1289	1204	1072	1257	16	45	1151	16	45	1080	10	108	59	106	145	D	371	1943	8r	8b	RKS.062.25.1204
  1399	1314	1182	1367	16	50	1261	16	50	1190	10	119	59	106	159	D	383	2124	9r	9b	RKS.062.25.1314
  1509	1424	1292	1477	16	54	1371	16	54	1300	10	130	59	106	172	D	395	2304	10r	10b	RKS.062.25.1424
  1619	1534	1402	1587	16	60	1481	16	60	1410	10	141	59	106	186	D	406	2485	11r	11b	RKS.062.25.1534
  1752	1644	1495	1708	22	54	1580	22	54	1500	10	150	59	106	236	D	416	2666	12r	12b	RKS.062.25.1644
  1862	1754	1605	1818	22	60	1690		60	1610	10	161	59	106	252	D	424	2847	13r	13b	RKS.062.25.1754
  2012	1904	1729	1968	22	64	1840	22	64	1736	14	124	82	147	299	D	571	4048	14r	14b	RKS.062.30.1904

Related Slewing Bearing

Four-point contact ball slewing turntable bearings 
consist of two ring seats. Compact structure, light weight, steel ball and arc track contact at four points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.


 

No	Non gear	Dimensions			Mounting Dimensions						Structural Dimensions					Weight (kg)
	DL mm	D mm	d mm	H mm	D1 mm	D2 mm	n	mm	dm mm	L mm	n1 mm	D3 mm	d1 mm	H1 mm	h mm
1	010.20.200	280	120	60	248	152	12	16	M14	28	2	201	199	50	10	17
2	010.20.224	304	144	60	272	176	12	16	M14	28	2	225	223	50	10	20
3	010.20.250	330	170	60	298	202	18	16	M14	28	2	251	249	50	10	22
4	010.20.280	360	200	60	328	232	18	16	M14	28	2	281	279	50	10	24
5	010.25.315	408	222	70	372	258	20	18	M16	32	2	316	314	60	10	37
6	010.25.355	448	262	70	412	298	20	18	M16	32	2	356	354	60	10	45
7	010.25.400	493	307	70	457	343	20	18	M16	32	2	401	399	60	10	50
8	010.25.450	543	357	70	507	393	20	18	M16	32	2	451	449	60	10	55
9	010.30.500	602	398	80	566	434	20	18	M16	32	4	501	498	70	10	85
9Y	010.25.500	602	398	80	566	434	20	18	M16	32	4	501	499	70	10	85
10	010.30.560	662	458	80	626	494	20	18	M16	32	4	561	558	70	10	95
10Y	010.25.560	662	458	80	626	494	20	18	M16	32	4	561	559	70	10	95
11	010.30.630	732	528	80	696	564	24	18	M16	32	4	631	628	70	10	110
11Y	010.25.630	732	528	80	696	564	24	18	M16	32	4	631	629	70	10	110
12	010.30.710	812	608	80	776	644	24	18	M16	32	4	711	708	70	10	120
12Y	010.25.710	812	608	80	776	644	24	18	M16	32	4	711	709	70	10	120
13	010.40.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	220
13Y	010.30.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	220
14	010.40.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	240
14Y	010.30.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	240
15	010.40.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	270
15Y	010.30.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	270
16	010.40.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	300
16Y	010.30.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	300
17	010.45.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1252	1248	100	10	420
17Y	010.35.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1251	1248	100	10	420
18	010.45.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1402	1398	100	10	480
18Y	010.35.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1401	1398	100	10	480
19	010.45.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1602	1598	100	10	550
19Y	010.35.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1601	1598	100	10	550
20	010.45.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1802	1798	100	10	610
20Y	010.35.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1801	1798	100	10	610
21	010.60.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2002	1998	132	12	1100
21Y	010.40.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2001	1998	132	12	1100
22	010.60.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2242	2238	132	12	1250
22Y	010.40.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2241	2238	132	12	1250
23	010.60.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2502	2498	132	12	1400
23Y	010.40.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2501	2498	132	12	1400
24	010.60.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	1600
24Y	010.40.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	1600
25	010.75.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	2800
25Y	010.50.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	2800

o	External gear DL mm	Dimensions			Mounting Dimensions						Structural Dimension					Gear data					Gear circumferential force		weight kg
		D mm	d mm	H mm	D1 mm	D2 mm	n	mm	dm mm	L mm	n1 mm	D3 mm	d1 mm	H1 mm	h mm	b mm	x	M mm	De mm	z	Normalizing Z10^4N	Quenching T10^4N
1	011.20.200	280	120	60	248	152	12	16	M14	28	2	201	199	50	10	40	0	3	300	98			20
2	011.20.224	304	144	60	272	176	12	16	M14	28	2	225	223	50	10	40	0	3	321	105			22
3	011.20.250	330	170	60	298	202	18	16	M14	28	2	251	249	50	10	40	0	4	352	86			24
4	011.20.280	360	200	60	328	232	18	16	M14	28	2	281	279	50	10	40	0	4	384	94			27
5	011.25.315	408	222	70	372	258	20	18	M16	32	2	316	314	60	10	50	0	5	435	85	2.9	4.4	40
6	011.25.355	448	262	70	412	298	20	18	M16	32	2	356	354	60	10	50	0	5	475	93	2.9	4.4	45
7	011.25.400	493	307	70	457	343	20	18	M16	32	2	401	399	60	10	50	0	6	528	86	3.5	5.3	55
8	011.25.450	543	357	70	507	393	20	18	M16	32	2	451	449	60	10	50	0	6	576	94	3.5	5.3	63
9	011.30.500	602	398	80	566	434	20	18	M16	32	4	501	498	70	10	60	0.5	5	629	123	3.7	5.2	85
	012.30.500																	6	628.8	102	4.5	6.2
9Y	011.25.500	602	398	80	566	434	20	18	M16	32	4	501	499	70	10	60	0.5	5	629	123	3.7	5.2	85
	012.25.500																	6	628.8	102	4.5	6.2
10	011.30.560	662	458	80	626	494	20	18	M16	32	4	561	558	70	10	60	0.5	5	689	135	3.7	5.2	95
	012.30.560																	6	688.8	112	4.5	6.2
10Y	011.25.560	662	458	80	626	494	20	18	M16	32	4	561	559	70	10	60	0.5	5	689	135	3.7	5.2	95
	012.25. 560																	6	688.8	112	4.5	6.2
11	011.30.630	732	528	80	696	564	24	18	M16	32	4	631	628	70	10	60	0.5	6	772.8	126	4.5	6.2	110
	012.30.630																	8	774.4	94	6	8.3
11Y	011.25.630	732	528	80	696	564	24	18	M16	32	4	631	629	70	10	60	0.5	6	772.8	126	4.5	6.2	110
	012.25.630																	8	774.4	94	6	8.2
12	011.30.710	812	608	80	776	644	24	18	M16	32	4	711	708	70	10	60	0.5	6	850.8	139	4.5	6.2	120
	012.30.710																	8	854.4	104	6	8.3
12Y	011.25.710	812	608	80	776	644	24	18	M16	32	4	711	709	70	10	60	0.5	6	850.8	139	4.5	6.2	120
	012.25.710																	8	854.4	104	6	8.9
13	011.40.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	966.4	118	8	11.1	220
	012.40.800																	10	968	94	10	14
13Y	011.30.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	966.4	118	8	11.1	220
	012.30.800																	10	968	94	10	14.1
14	011.40.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	1062.4	130	8	11.1	240
	012.40.900																	10	1068	104	10	14
14Y	011.30.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	1062.4	130	8	11.1	240
	012.30.900																	10	1068	104	10	14
15	011.40.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	1188	116	10	14	270
	012.40.1000																	12	1185.6	96	12	16.7
15Y	011.30.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	1188	116	10	14	270
	012.30.1000																	12	1185.6	96	12	16.7
16	011.40.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	1298	127	10	14	300
	012.40.1120																	12	1305.6	106	12	16.7
16Y	011.30.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	1298	127	10	14	300
	012.30.1120																	12	1305.6	106	12	16.7
17	011.45.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1252	1248	100	10	90	0.5	12	1449.6	118	13.5	18.8	420
	012.45.1250																	14	1453.2	101	15.8	21.9
17Y	011.35.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1251	1248	100	10	90	0.5	12	1449.6	118	13.5	18.8	420
	012.35.1250																	14	1453.2	101	15.8	21.9
18	011.45.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1402	1398	100	10	90	0.5	12	1605.6	131	13.5	18.8	480
	012.45.1400																	14	1607.2	112	15.5	21.9
18Y	011.35.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1401	1398	100	10	90	0.5	12	1605.6	131	13.5	18.8	480
	012.35.1400																	14	1607.2	112	15.8	21.9
19	011.45.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1602	1598	100	10	90	0.5	14	1817.2	127	15.8	21.9	550
	012.45.1600																	16	1820.8	111	18.1	25
19Y	011.35.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1601	1598	100	10	90	0.5	14	1817.2	127	15.8	21.9	550
	012.35.1600																	16	1820.8	111	18.1	25
20	011.45.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1802	1798	100	10	90	0.5	14	2013.2	141	15.8	21.9	610
	012.45.1800																	16	2012.8	123	18.1	25
20Y	011.35.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1801	1798	100	10	90	0.5	14	2013.2	141	15.8	21.9	610
	012.35.1800																	16	2012.8	123	18.1	25
21	011.60.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2002	1998	132	12	120	0.5	16	2268.8	139	24.1	33.3	1100
	012.60.2000																	18	2264.4	123	27.1	37.5
21Y	011.40.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2001	1998	132	12	120	0.5	16	2268.8	139	24.1	33.3	1100
	012.40.2000																	18	2264.4	123	27.1	37.5
22	011.60.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2242	2238	132	12	120	0.5	16	2492.8	153	24.1	33.3	1250
	012.60.2240																	18	2498.4	136	27.1	37.5
22Y	011.40.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2241	2238	132	12	120	0.5	16	2492.8	153	24.1	33.3	1250
	012.40.2240																	18	2498.4	136	27.1	37.5
23	011.60.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2502	2498	132	12	120	0.5	18	2768.4	151	27.1	37.5	1400
	012.60.2500																	20	2776	136	30.1	41.8
23Y	011.40.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2501	2498	132	12	120	0.5	18	2768.4	151	27.1	37.5	1400
	012.40.2500																	20	2776	136	30.1	41.8
24	011.60.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	3074.4	168	27.1	37.5	1600
	012.60.2800																	20	3076	151	30.1	41.8
24Y	011.40.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	3074.4	168	27.1	37.5	1600
	012.40.2800																	20	3076	151	30.1	41.8
25	011.75.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	3476	171	37.7	52.2	2800
	012.75.3150																	22	3471.6	155	41.5	57.4
25Y	011.50.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	3476	171	37.7	52.2	2800
	012.50.3150																	22	3471.6	155	41.5	57.4

o	Internal gear DL mm	Dimensions			Mounting Dimensions						Structural Dimension					Gear data					Gear circumferential force		Weight (kg)
		D mm	d mm	H mm	D 1 mm	D2 mm	n	mm	dm mm	L mm	n1 mm	D3 mm	d1 mm	H1 mm	h mm	b mm	x	M mm	De mm	z	Normalizing Z10^4N	Quenching T10^4N
1	013.25.315	408	222	70	372	258	20	18	M16	32	2	316	314	60	10	50	0	5	190	40	2.9	4.4	38
2	013.25.355	448	262	70	412	298	20	18	M16	32	2	356	354	60	10	50	0	5	235	49	2.9	4.4	43
3	013.25.400	493	307	70	457	343	20	18	M16	32	2	401	399	60	10	50	0	6	276	48	3.5	5.3	53
4	013.25.450	543	357	70	507	393	20	18	M16	32	2	451	449	60	10	50	0	6	324	56	3.5	5.3	61
5	013.30.500	602	398	80	566	434	20	18	M16	32	4	501	498	70	10	60	0.5	5	367	74	3.7	5.2	85
	014.30.500																	6	368.4	62	4.5	6.2
5Y	013.25.500	602	398	80	566	434	20	18	M16	32	4	501	499	70	10	60	0.5	5	367	74	3.7	5.2	85
	014.25.500																	6	368.4	62	4.5	6.2
6	013.30.560	662	458	80	626	494	20	18	M16	32	4	561	558	70	10	60	0.5	5	427	86	3.7	5.2	95
	014.30.560																	6	428.4	72	4.5	6.2
6Y	013.25.560	662	458	80	626	494	20	18	M16	32	4	561	559	70	10	60	0.5	5	427	86	3.7	5.2	95
	014.25.560																	6	428.4	72	4.5	6.2
7	013.30.630	732	528	80	696	564	24	18	M16	32	4	631	628	70	10	60	0.5	6	494.4	83	4.5	6.2	110
	014.30.630																	8	491.2	62	6	8.3
7Y	013.25.630	732	528	80	696	564	24	18	M16	32	4	631	629	70	10	60	0.5	6	494.4	83	4.5	6.2	110
	014.25.630																	8	491.2	62	6	8.2
8	013.30.710	812	608	80	776	644	24	18	M16	32	4	711	708	70	10	60	0.5	6	572.4	96	4.5	6.2	120
	014.30.710																	8	571.2	72	6	8.3
8Y	013.25.710	812	608	80	776	644	24	18	M16	32	4	711	709	70	10	60	0.5	6	572.4	96	4.5	6.2	120
	014.25.710																	8	571.2	72	6	8.9
9	013.40.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	635.2	80	8	11.1	220
	014.40.800																	10	634	64	10	14
9Y	013.30.800	922	678	100	878	722	30	22	M20	40	6	801	798	90	10	80	0.5	8	635.2	80	8	11.1	220
	014.30.800																	10	634	64	10	14.1
10	013.40.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	739.2	93	8	11.1	240
	014.40.900																	10	734	74	10	14
10Y	013.30.900	1022	778	100	978	822	30	22	M20	40	6	901	898	90	10	80	0.5	8	739.2	93	8	11.1	240
	014.30.900																	10	734	74	10	14
11	013.40.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	824	83	10	14	270
	014.40.1000																	12	820.8	69	12	16.7
11Y	013.30.1000	1122	878	100	1078	922	36	22	M20	40	6	1001	998	90	10	80	0.5	10	824	83	10	14	270
	014.30.1000																	12	820.8	69	12	16.7
12	013.40.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	944	95	10	14	300
	014.40.1120																	12	940.8	79	12	16.7
12Y	013.30.1120	1242	998	100	1198	1042	36	22	M20	40	6	1121	1118	90	10	80	0.5	10	944	95	10	14	300
	014.30.1120																	12	940.8	79	12	16.7
13	013.45.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1252	1248	100	10	90	0.5	12	1049	88	13.5	18.8	420
	014.45.1250																	14	1042	75	15.8	21.9
13Y	013.35.1250	1390	1110	110	1337	1163	40	26	M24	48	5	1251	1248	100	10	90	0.5	12	1049	88	13.5	18.8	420
	014.35.1250																	14	1042	75	15.8	21.9
14	013.45.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1402	1398	100	10	90	0.5	12	1193	100	13.5	18.8	480
	014.45.1400																	14	1196	86	15.5	21.9
14Y	013.35.1400	1540	1260	110	1487	1313	40	26	M24	48	5	1401	1398	100	10	90	0.5	12	1193	100	13.5	18.8	480
	014.35.1400																	14	1196	86	15.8	21.9
15	013.45.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1602	1598	100	10	90	0.5	14	1392	100	15.8	21.9	550
	014.45.1600																	16	1382	87	18.1	25
15Y	013.35.1600	1740	1460	110	1687	1513	45	26	M24	48	5	1601	1598	100	10	90	0.5	14	1392	100	15.8	21.9	550
	014.35.1600																	16	1382	87	18.1	25
16	013.45.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1802	1798	100	10	90	0.5	14	1574	113	15.8	21.9	610
	014.45.1800																	16	1574	99	18.1	25
16Y	013.35.1800	1940	1660	110	1887	1713	45	26	M24	48	5	1801	1798	100	10	90	0.5	14	1574	113	15.8	21.9	610
	014.35.1800																	16	1574	99	18.1	25
17	013.60.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2002	1998	132	12	120	0.5	16	1734	109	24.1	33.3	1100
	014.60.2000																	18	1735	97	27.1	37.5
17Y	013.40.2000	2178	1825	144	2110	1891	48	33	M30	60	8	2001	1998	132	12	120	0.5	16	1734	109	24.1	33.3	1100
	014.40.2000																	18	1735	97	27.1	37.5
18	013.60.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2242	2238	132	12	120	0.5	16	1990	125	24.1	33.3	1250
	014.60.2240																	18	1987	111	27.1	37.5
18Y	013.40.2240	2418	2065	144	2350	2131	48	33	M30	60	8	2241	2238	132	12	120	0.5	16	1990	125	24.1	33.3	1250
	014.40.2240																	18	1987	111	27.1	37.5
19	013.60.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2502	2498	132	12	120	0.5	18	2239	125	27.1	37.5	1400
	014.60.2500																	20	2228	112	30.1	41.8
19Y	013.40.2500	2678	2325	144	2610	2391	56	33	M30	60	8	2501	2498	132	12	120	0.5	18	2239	125	27.1	37.5	1400
	014.40.2500																	20	2228	112	30.1	41.8
20	013.60.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	2527	141	27.1	37.5	1600
	014.60.2800																	20	2528	127	30.1	41.8
20Y	013.40.2800	2978	2625	144	2910	2691	56	33	M30	60	8	2802	2798	132	12	120	0.5	18	2527	141	27.1	37.5	1600
	014.40.2800																	20	2528	127	30.1	41.8
21	013.75.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	2828	142	37.7	52.2	2800
	014.75.3150																	22	2825	129	41.5	57.4
21Y	013.50.3150	3376	2922	174	3286	3014	56	45	M42	84	8	3152	3147	162	12	150	0.5	20	2828	142	37.7	52.2	2800
	014.50.3150																	22	2825	129	41.5	57.4

 

Single row cross roller slewing bearing
Composed of two or three rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.

Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc

 
Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest one of the four structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.

 

Detailed Photos

 

 

Technical Parameters

Product Process

SLEWING BEARING RINGS

Rings are mainly made of 50Mn carbon steel or alloy steels such as 42CrMo4 and the choice of material depends on the required mechanical properties. Alloy steels are often used for heavy-duty applications. Their structural characteristics mean that heat treatments are more effective and greater surface hardness can be obtained than with carbon steels. Stainless steels such as AISI420 or AISI440C can be used for applications where corrosion resistance is required.

RACEWAYS

The raceways are heat-treated by induction in order to achieve a maximum surface hardness of 62 HRC for carbon or alloy steels, or 58 HRC for stainless steels. The hardening depth can vary depending on the type of steel. Hardening treatment is essential to allow the slewing coupling to support the heavy-duty loads it is exposed to in its intended application.

ROTATING ELEMENTS

The rotating elements used in slewing bearings may be balls or cylindrical rollers; both are typically made of 100Cr6 steel but other materials such as ceramic (zirconium oxide ZrO2 or silicon nitride Si3N4) or stainless steel (AISI440C) can be used. Rolling elements with different materials, sizes and precision grades are selected depending on the desired results.

CAGES OR SPACERS

Slewing bearing clearance plays a crucial role and is defined and optimised according to the application and performance to be achieved.
Cages or spacers made of different materials can be used to separate rolling elements, balls or rollers, depending on the loads and speeds required by the specific application.

PROTECTIONS

Special sliding seals are fitted between the inner and outer ring to protect the slewing bearing against the ingress of debris, dust or water particles that could affect its operation. The material used for seals is typically NBR rubber, but different materials can be chosen for specific applications.

LUBRICANT

The lubricant is another very important factor to ensure effective operation of the base bearing. The type of lubricant, quantity, quality, lubrication intervals, number and position of greasing points are determined according to the performance required of the slewing bearing and any specific customer requirements.

GEARED RINGS

Slewing bearing rings can be spur-gear or, more rarely, helical-gear. The gear module is sized and selected according to the application requirements.
Typically, the gearing is soft, i.e. untreated - the maximum hardness of untreated gears is 30 HRC for 42CrMo4. When service conditions require it, the gear surface can be induction-hardened to achieve a surface hardness of 60 HRC. Gear hardening is required when at least one of the following variables must be satisfied:

• high rolling torque
•  
• high rotating speed
•  
• unfavourable environmental conditions, presence of abrasive elements
•  
• maximum tooth lifetime

The experience gained by LYMC Bearing allows us to design slewing bearings to specific customer needs. You can get the right product for your machines or systems without having to compromise with an off-the-shelf product.

Customer Feedback

Customer Feedback:

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Application

Application:

- Excavators - Drilling rigs - Mining Equipments - Cranes   -Offshore Equipments  - Vehicles  - Machine Tools  - Wind Turbines

Company Profile

About Us:
Luoyang MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers' project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

After Sales Service

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years' experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service.