High-Load Three-Row Cylindrical Roller Slewing Bearing

Three-row Cylindrical Roller Slewing Bearing (Without Gear Type)

Three-row Cylindrical Roller Slewing Bearing

The LYNBC three-row cylindrical roller slewing bearing can carry axial load, tilting moment, and radial load at the same time. Compared to cross-cylindrical roller slewing bearing, the load of each roller is reduced. Point contact is changed into line contact. Compared with that of a double row ball slewing bearing, and the contact stresses are also decreased. Therefore, the load capacity of this design of slewing baring is the highest under the conditions of a bearing with the same boundary dimension. Axial load and radial load for this design are loaded by different rollers, in which the axial load and tilting moment are loaded by two groups of horizontal placed rollers, the radial load is loaded by one group of vertical placed rollers.

LYNBC three-row cylindrical roller slewing bearing mainly consists of the components such as inner ring, outer ring, three rows of rollers, cage (spacing blocks), and a seal device etc.

The design applications where there is a large axial load, tilting moment, a larger radial load, or a low requirement for friction moment.

The basic structure of LYNBC three-row cylindrical roller slewing bearing as below:

Without gear

External gear

Internal gear

▲ The design’s of all these slewing bearing are based on standard structures; LYNBC can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers’. If our customer’s have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNBC Technical Center if you need any assistance in this area.

Designation	Boundary Dimension			Mounting Hole Size				Structure Size					Basic load ratings		Mass (kg)
	D	d	H	D₁	D₂	Φ	n	n₁	D₃	d₁	H₁	h	Coa(10KN)	Cor(10KN)
	mm			mm			n	mm					Coa(10KN)	Cor(10KN)
130.25.500	634	366	148	598	402	18	24	4	474	463	138	32	275	35.5	200
130.25.560	694	426	148	658	462	18	24	4	534	523	138	32	308	39.9	220
130.25.630	764	496	148	728	532	18	28	4	604	593	138	32	345	45.1	250
130.25.710	844	576	148	808	612	18	28	4	684	673	138	32	388	51.7	290
130.32.800	964	636	182	920	680	22	36	4	770	759	172	40	549	712	470
130.32.900	1064	736	182	1020	780	22	36	4	870	859	172	40	619	80.8	530
130.32.1000	1164	836	182	1120	880	22	40	5	970	959	172	40	689	90.3	600
130.32.1120	1284	956	182	1240	1000	22	40	5	1090	1079	172	40	768	102	680
130.40.1250	1445	1055	220	1393	1107	26	45	5	1213	1200	210	50	1110	146	1050
130.40.1400	1595	1205	220	1543	1257	26	45	5	1363	1350	210	50	1240	165	1190
130.40.1600	1795	1405	220	1743	1457	26	48	6	1563	1550	210	50	1420	190	1350
130.40.1800	1995	1605	220	1943	1657	26	48	6	1763	1750	210	50	1590	215	1540
130.45.2000	2221	1779	231	2155	1845	33	60	6	1967	1945	219	54	1690	66.3	1990
130.45.2240	2461	2019	231	2395	2085	33	60	6	2207	2185	219	54	2310	268	2230
130.45.2500	2721	2279	231	2655	2345	33	72	8	2467	2445	219	54	2580	302	2620
130.45.2800	3021	2579	231	2955	2645	33	72	8	2767	2745	219	54	2880	339	2980
130.50.3150	3432	2868	270	3342	2958	45	72	8	3104	3090	258	65	3590	381	4580
130.50.3550	3832	3268	270	3742	3358	45	72	8	3504	3490	258	65	4040	431	5200
130.50.4000	4282	3718	270	4192	3808	45	80	8	3954	3940	258	65	4560	487	5800
130.50.4500	4782	4218	270	4692	4308	45	80	8	4454	4440	258	65	5445	580	6600

Three-row Cylindrical Roller Slewing Bearing (Internal Gear Type)

Three-row Cylindrical Roller Slewing Bearing

The LYNBC three-row cylindrical roller slewing bearing can carry axial load, tilting moment, and radial load at the same time. Compared to cross-cylindrical roller slewing bearing, the load of each roller is reduced. Point contact is changed into line contact.Compared with that of a double row ball slewing bearing, and the contact stresses are also decreased. Therefore, the load capacity of this design of slewing baring is the highest under the conditions of a bearing with the same boundary dimension. Axial load and radial load for this design are loaded by different rollers, in which the axial load and tilting moment are loaded by two groups of horizontal placed rollers, the radial load is loaded by one group of vertical placed rollers.

LYNBC three-row cylindrical roller slewing bearing mainly consists of the components such as inner ring, outer ring, three rows of rollers, cage (spacing blocks), and a seal device etc.

The design applications where there is a large axial load, tilting moment, a larger radial load, or a low requirement for friction moment.

The basic structure of LYNBC three-row cylindrical roller slewing bearing as below:

Without gear

External gear

Internal gear

Designation	Boundary Dimension			Mounting Hole Size				Structure Size					Gear Data					Tangential Tooth Load		Basic load ratings		Mass (kg)
	D	d	H	D₁	D₂	Φ	n	n₁	D₃	d₁	H₁	h	B	m	De	z	x	Z	T	Coa(10KN)	Cor(10KN)
	mm			mm			n	mm					mm			z	x	Z	T	Coa(10KN)	Cor(10KN)
133.25.500	634	366	148	598	402	18	24	4	474	463	138	32	80	5	337	68	+0.5	50	67	275	35.5	198
134.25.500	634	366	148	598	402	18	24	4	474	463	138	32	80	6	338.4	57	+0.5	60	80	275	35.5	198
133.25.560	694	426	148	658	462	18	24	4	534	523	138	32	80	5	397	80	+0.5	50	67	308	39.9	222
134.25.560	694	426	148	658	462	18	24	4	534	523	138	32	80	6	398.4	67	+0.5	60	80	308	39.9	220
133.25.630	764	496	148	728	532	18	28	4	604	593	138	32	80	6	458.4	77	+0.5	60	80	345	45.1	253
134.25.630	764	496	148	728	532	18	28	4	604	593	138	32	80	8	459.2	58	+0.5	80	110	345	45.1	251
133.25.710	844	576	148	808	612	18	28	4	684	673	138	32	80	6	536.4	90	+0.5	60	80	388	51.7	288
134.25.710	844	576	148	808	612	18	28	4	684	673	138	32	80	8	539.2	68	+0.5	80	110	388	51.7	284
133.32.800	964	636	182	920	680	22	36	4	770	759	157	40	120	8	595.2	75	+0.5	121	167	549	71.2	483
134.32.800	964	636	182	920	680	22	36	4	770	759	157	40	120	10	594	60	+0.5	151	209	549	71.2	481
133.32.900	1064	736	182	1020	780	22	36	4	870	859	172	40	120	8	691.2	87	+0.5	121	167	619	80.8	551
134.32.900	1064	736	182	1020	780	22	36	4	870	859	172	40	120	10	694	70	+0.5	151	209	619	80.8	545
133.32.1000	1164	836	182	1120	880	22	40	5	970	959	172	40	120	10	784	79	+0.5	151	209	689	90.3	618
134.32.1000	1164	836	182	1120	880	22	40	5	970	959	172	40	120	12	784.8	66	+0.5	181	251	689	90.3	613
133.32.1120	1284	956	182	1240	1000	22	40	5	1090	1079	172	40	120	10	904	91	+0.5	151	209	768	102	698
134.32.1120	1284	956	182	1240	1000	22	40	5	1090	1079	172	40	120	12	904.8	76	+0.5	181	251	768	102	691
133.40.1250	1445	1055	220	1393	1107	26	45	5	1213	1200	210	50	150	12	988.8	83	+0.5	229	314	1110	146	1123
134.40.1250	1445	1055	220	1393	1107	26	45	5	1213	1200	210	50	150	14	985.6	71	+0.5	263	366	1110	146	1122
133.40.1400	1595	1205	220	1543	1257	26	45	5	1363	1350	210	50	150	12	1144.8	96	+0.5	229	314	1240	165	1254
134.40.1400	1595	1205	220	1543	1257	26	45	5	1363	1350	210	50	150	14	1139.6	82	+0.5	263	366	1240	165	1258
133.40.1600	1795	1405	220	1743	1457	26	48	6	1563	1500	210	50	150	14	1335.6	96	+0.5	263	366	1420	190	1454
134.40.1600	1795	1405	220	1743	1457	26	48	6	1563	1500	210	50	150	16	1334.4	84	+0.5	302	417	1420	190	1448
133.40.1800	1995	1605	220	1943	1657	26	48	6	1763	1750	210	50	150	14	1531.6	110	+0.5	263	366	1590	215	1658
134.40.1800	1995	1605	220	1943	1657	26	48	6	1763	1750	210	50	150	16	1526.4	96	+0.5	302	417	1590	215	1663
133.45.2000	2221	1779	231	2155	1845	33	60	6	1967	1945	219	54	160	16	1702.4	107	+0.5	322	445	2050	239	2114
134.45.2000	2221	1779	231	2155	1845	33	60	6	1967	1945	219	54	160	18	1699.2	95	+0.5	362	501	2050	239	2112
133.45.2240	2461	2019	231	2395	2085	33	60	6	2207	2185	219	54	160	16	1926.4	121	+0.5	322	445	2310	268	2447
134.45.2240	2461	2019	231	2395	2085	33	60	6	2207	2185	219	54	160	18	1933.2	108	+0.5	362	501	2310	268	2407
133.45.2500	2721	2279	231	2655	2345	33	72	8	2467	2445	219	54	160	18	2185.2	122	+0.5	362	501	2580	302	2862
134.45.2500	2721	2279	231	2655	2345	33	72	8	2467	2445	219	54	160	20	2188	110	+0.5	402	556	2580	302	2834
133.45.2800	3021	2579	231	2955	2645	33	72	8	2767	2745	219	54	160	18	2491.2	139	+0.5	360	501	2880	339	3211
134.45.2800	3021	2579	231	2955	2645	33	72	8	2767	2745	219	54	160	20	2488	125	+0.5	402	556	2880	339	3209
133.50.3150	3432	2868	270	3342	2958	45	72	8	3104	3090	258	65	180	20	2768	139	+0.5	452	626	3590	381	4954
134.50.3150	3432	2868	270	3342	2958	45	72	8	3104	3090	258	65	180	22	2758.8	126	+0.5	498	689	3590	381	4988
133.50.3550	3832	3268	270	3742	3358	45	72	8	3504	3490	258	65	180	20	3168	159	+0.5	452	626	4040	431	5638
134.50.3550	3832	3268	270	3742	3358	45	72	8	3504	3490	258	65	180	22	3154.8	144	+0.5	498	689	4040	431	5706
133.50.4000	4282	3718	270	4192	3808	45	80	8	3954	3940	258	65	180	22	3116.8	165	+0.5	498	689	4560	487	6257
134.50.4000	4282	3718	270	4192	3808	45	80	8	3954	3940	258	65	180	25	3610	145	+0.5	565	783	4560	487	6268
133.50.4500	4782	4218	270	4692	4308	45	80	8	4454	4440	258	65	180	22	4122.8	188	+0.5	498	689	5445	580	7040
134.50.4500	4782	4218	270	4692	4308	45	80	8	4454	4440	258	65	180	25	4110	165	+0.5	565	783	5445	580	7108

Three-row Cylindrical Roller Slewing Bearing (External Gear Type)

Three-row Cylindrical Roller Slewing Bearing

The LYNBC three-row cylindrical roller slewing bearing can carry axial load, tilting moment, and radial load at the same time. Compared to cross-cylindrical roller slewing bearing, the load of each roller is reduced. Point contact is changed into line contact.Compared with that of a double row ball slewing bearing, and the contact stresses are also decreased. Therefore, the load capacity of this design of slewing baring is the highest under the conditions of a bearing with the same boundary dimension. Axial load and radial load for this design are loaded by different rollers, in which the axial load and tilting moment are loaded by two groups of horizontal placed rollers, the radial load is loaded by one group of vertical placed rollers.

LYNBC three-row cylindrical roller slewing bearing mainly consists of the components such as inner ring, outer ring, three rows of rollers, cage (spacing blocks), and a seal device etc.

The design applications where there is a large axial load, tilting moment, a larger radial load, or a low requirement for friction moment.

The basic structure of LYNBC three-row cylindrical roller slewing bearing as below:

Without gear

External gear

Internal gear

▲ The design’s of all these slewing bearing are based on standard structures; LYNBC can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers’. If our customer’s have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNBC technical center if you need any assistance in this area.

Designation	Boundary Dimension			Mounting Hole Size				Structure Size					Gear Data					Tangential Tooth Load		Basic load ratings		Mass (kg)
	D	d	H	D₁	D₂	Ф	n	n₁	D₃	d₁	H₁	h	B	m	De	z	x	Z	T	Coa(10KN)	Cor(10KN)
	mm			mm			n	mm					mm			z	x	Z	T	Coa(10KN)	Cor(10KN)
131.25.500	634	366	148	598	402	18	24	4	537	526	138	32	80	5	664	130	+0.5	50	67	275	35.5	200
132.25.500	634	366	148	598	402	18	24	4	537	526	138	32	80	6	664.8	108	+0.5	60	80	275	35.5	200
131.25.560	694	426	148	658	462	18	24	4	597	586	138	32	80	5	724	142	+0.5	50	67	308	39.9	224
132.25.560	694	426	148	658	462	18	24	4	597	586	138	32	80	6	724.8	118	+0.5	60	80	308	39.9	224
131.25.630	764	496	148	728	532	18	28	4	667	656	138	32	80	6	808.8	132	+0.5	60	80	345	45.1	262
132.25.630	764	496	148	728	532	18	28	4	667	656	138	32	80	8	806.4	98	+0.5	80	110	345	45.1	257
131.25.710	844	576	148	808	612	18	28	4	747	736	138	32	80	6	886.8	145	+0.5	60	80	388	51.7	295
132.25.710	844	576	148	808	612	18	28	4	747	736	138	32	80	8	886.4	108	+0.5	80	110	388	51.7	291
131.32.800	964	636	182	920	680	22	36	4	841	830	172	40	120	8	1006.4	123	+0.5	121	167	549	71.2	490
132.32.800	964	636	182	920	680	22	36	4	841	830	172	40	120	10	1008	98	+0.5	151	209	549	71.2	487
131.32.900	1064	736	182	1020	780	22	36	4	941	930	172	40	120	8	1102.4	135	+0.5	121	167	619	80.8	549
132.32.900	1064	736	182	1020	780	22	36	4	941	930	172	40	120	10	1108	108	+0.5	151	209	619	80.8	562
131.32.1000	1164	836	182	1120	880	22	40	5	1041	1030	172	40	120	10	1218	119	+0.5	151	209	689	90.3	631
132.32.1000	1164	836	182	1120	880	22	40	5	1041	1030	172	40	120	12	1221.6	99	+0.5	181	251	689	90.3	631
131.32.1120	1284	956	182	1240	1000	22	40	5	1161	1150	172	40	120	10	1338	131	+0.5	151	209	768	102	710
132.32.1120	1284	956	182	1240	1000	22	40	5	1161	1150	172	40	120	12	1341.6	109	+0.5	181	251	768	102	710
131.40.1250	1445	1055	220	1393	1107	26	45	5	1300	1287	210	50	150	12	1509.6	123	+0.5	229	314	1110	146	1137
132.40.1250	1445	1055	220	1393	1107	26	45	5	1300	1287	210	50	150	14	1509.2	105	+0.5	263	366	1110	146	1126
131.40.1400	1595	1205	220	1543	1257	26	45	5	1450	1437	210	50	150	12	1665.6	136	+0.5	229	314	1240	165	1299
132.40.1400	1595	1205	220	1543	1257	26	45	5	1450	1437	210	50	150	14	1663.2	116	+0.5	263	366	1240	165	1281
131.40.1600	1795	1405	220	1743	1457	26	48	6	1650	1637	210	50	150	14	1873.2	131	+0.5	263	366	1420	190	1501
132.40.1600	1795	1405	220	1743	1457	26	48	6	1650	1637	210	50	150	16	1868.8	114	+0.5	302	417	1420	190	1471
131.40.1800	1995	1605	220	1943	1657	26	48	6	1850	1837	210	50	150	14	2069.2	145	+0.5	263	366	1590	215	1682
132.40.1800	1995	1605	220	1943	1657	26	48	6	1850	1837	210	50	150	16	2076.8	127	+0.5	302	417	1590	215	1697
131.45.2000	2221	1779	231	2155	1845	33	60	6	2055	2033	219	54	160	16	2300.8	141	+0.5	322	445	2221	1779	2147
132.45.2000	2221	1779	231	2155	1845	33	60	6	2055	2033	219	54	160	18	2300.4	125	+0.5	362	501	2221	1779	2129
131.45.2240	2461	2019	231	2395	2085	33	60	6	2295	2273	219	54	160	16	2556.8	157	+0.5	322	445	2310	268	2501
132.45.2240	2461	2019	231	2395	2085	33	60	6	2295	2273	219	54	160	18	2552.4	139	+0.5	362	501	2310	268	2461
131.45.2500	2721	2279	231	2655	2345	33	72	8	2555	2533	219	54	160	18	2822.4	154	+0.5	362	501	2580	302	2786
132.45.2500	2721	2279	231	2655	2345	33	72	8	2555	2533	219	54	160	20	2816	138	+0.5	402	556	2580	302	2731
131.45.2800	3021	2579	231	2955	2645	33	72	8	2855	2833	219	54	160	18	3110.4	170	+0.5	360	501	2880	339	3067
132.45.2800	3021	2579	231	2955	2645	33	72	8	2855	2833	219	54	160	20	3116	153	+0.5	402	556	2880	339	3079
131.50.3150	3432	2868	270	3342	2958	45	72	8	3213	3196	258	65	180	20	3536	174	+0.5	452	626	3590	381	5025
132.50.3150	3432	2868	270	3342	2958	45	72	8	3213	3196	258	65	180	22	3537.6	158	+0.5	498	689	3590	381	5009
131.50.3550	3832	3268	270	3742	3358	45	72	8	3613	3596	258	65	180	20	3936	194	+0.5	452	626	4040	431	5713
132.50.3550	3832	3268	270	3742	3358	45	72	8	3613	3596	258	65	180	22	3933.6	176	+0.5	498	689	4040	431	5670
131.50.4000	4282	3718	270	4192	3808	45	80	8	4063	4046	258	65	180	22	4395.6	197	+0.5	498	689	4560	487	6520
132.50.4000	4282	3718	270	4192	3808	45	80	8	4063	4046	258	65	180	25	4395	173	+0.5	565	783	4560	487	6470
131.50.4500	4782	4218	270	4692	4308	45	80	8	4563	4546	258	65	180	22	4901.6	220	+0.5	498	689	5445	580	7450
132.50.4500	4782	4218	270	4692	4308	45	80	8	4563	4546	258	65	180	25	4895	193	+0.5	565	783	5445	580	7320

Three-row Cylindrical Roller Slewing Bearing

A three-row cylindrical roller slewing bearing is a type of rolling-element bearing that is specifically designed for supporting high loads in applications involving slow rotation or oscillation.

Key Characteristics Of Three-row Cylindrical Roller Slewing Bearing

Three Rows of Cylindrical Rollers: This is the defining feature. Having three separate rows of cylindrical rollers rolling between inner and outer rings allows the bearing to distribute loads more evenly and handle significantly higher axial, radial, and moment loads compared to single or double-row designs.

Cylindrical Rollers: Cylindrical rollers provide line contact with the raceways, which contributes to the high load capacity.

Integral Inner and/or Outer Rings: Slewing bearings often have integrated inner and outer rings with machined features like mounting holes, gears (internal or external), or seals. This simplifies integration into the application.

Preloaded Design: These bearings are often preloaded to reduce deflection under load and improve stiffness.

Slow Rotation/Oscillation: They are best suited for applications with slow rotational speeds or oscillating movements. High-speed applications are typically not recommended.

Advantages

Extremely High Load Capacity: The most significant advantage. The three rows of rollers enable it to handle very heavy axial, radial, and tilting moment loads.

High Rigidity: Preloading and the multiple rows of rollers contribute to high stiffness and resistance to deflection under load.

Compact Design: For a given load capacity, a three-row design can often be more compact than other bearing types.

Precision: Can be manufactured to high precision levels, ensuring accurate positioning and movement.

Durability: Well-suited for demanding environments.

Integrated Features: The integrated rings and features like gears and mounting holes simplify the design and assembly process.

Applications

Three-row cylindrical roller slewing bearings are found in heavy-duty applications where high load capacity, rigidity, and accuracy are crucial. Common examples include:

Heavy Construction Equipment:

Excavators (turret rotation)

Cranes (slewing)

Pile Drivers

Tunnel Boring Machines

Wind Turbines: Blade Pitch Control, Yaw Control

Large Machine Tools: Rotary Tables

Mining Equipment: Shovels, Drills

Radar Antennas: Tracking systems

Offshore Equipment: Rotating Platforms

Medical Equipment: CT Scanners, MRI Machines

Robotics: Large robotic arms and positioners

Design Considerations

When designing with three-row cylindrical roller slewing bearings, consider the following:

Load Calculations: Accurate load calculations are crucial to select the correct bearing size and type. This includes axial, radial, and moment loads, as well as dynamic and static loads.

Mounting and Support: Proper mounting and support structures are essential to distribute the load evenly and prevent premature failure.

Lubrication: Proper lubrication is critical for the life of the bearing. The correct type of lubricant and lubrication intervals must be determined.

Sealing: Effective sealing is necessary to protect the bearing from contaminants such as dirt, dust, and moisture.

Clearances and Tolerances: Appropriate clearances and tolerances must be specified to ensure proper operation.

Gear Design (if applicable): If the bearing includes a gear, the gear design must be carefully considered to ensure proper mesh and load distribution.

Operating Environment: The operating environment (temperature, humidity, presence of corrosive substances) must be taken into account when selecting the bearing material and lubricant.