Model 81-50 2987/2-06940 Double Volleyball Slewing Bearing

• Customization: Available
• Standard or Nonstandard: Standard
• Feature: High Speed
• Model NO.: 81-50 2987/2-06940
• Sealing Gland: Sealed On Both Sides
• Rolling-Element Number: Double-Row
• Roller Type: Crowned Raceway
• Material: Bearing Steel
• Type: Internal Gear
• Craft: Grinding
• Transport Package: in Wooden Case
• Specification: 3290.4*2820
• Trademark: LYDZC
• Origin: Luoyang Cgina
• HS Code: 4103362175
• Production Capacity: 45000sets/Year

Product Description

Bearing application:
Double volleyball turntable bearings are widely used in bucket turbines, heavy-lift transport machinery, port machinery, mining machinery, construction machinery, park recreation machines, filling machines and missile launchers and other large rotary devices.
Improper lubrication or hard foreign matter can wear out the bearing retainer. Sliding friction is the most important thing to avoid in the running of rolling bearing. However, the sliding contact between the roller and the retainer is usually impossible to eliminate, so if the lubrication is poor, the retainer is the first to wear parts. And the retainer is made of a softer material, so wear is fairly quick. A gradual gap in the retainer will cause the retainer to crack quickly. The same thing happens when a hard particle penetrates a bearing.

More models:

	Boundary dimensions			Bolt hole diameter					Structure dimensions									Basic load   ratings	Mass
external gear type	D	d	H	D1	D2	n	φ	n1	D3	d1	H1	h	b	X	m	da	Z	Coa	kg
	mm			mm			mm		mm				mm					104  N
HSW.25.625	725	525	80	685	565	18	18	3	626	624	68	12	60	1.4	5	751.9	146	5.2	100
HSW.25.625A														1.15	6	765.5	122
HSW.20.720	820	620	80	780	660	18	18	3	721	719	68	12	60	1.4	6	860.3	139	6.2	120
HSW.20.720A														1	8	861.1	104
HSW.30.820	940	705	95	893	749	24	20	4	821	818	83	12	70	1.4	6	980	159	7.2	210
HSW.30.820A														1	10	986.2	95
HSW.30.880	1000	760	95	965	800	24	20	4	881	878	83	12	70	1.15	8	1047.5	127	9.7	230
HSW.30.880A														1	10	1046.3	101
HSW.30.1020	1170	875	95	1120	930	24	22	4	1021	1018	80	15	70	1.4	8	1219.3	148	9.7	300
HSW.30.1020A														1.15	10	1219.2	118
HSW.30.1220	1365	1075	120	1310	1130	36	24	6	1221	1218	105	15	90	1.4	10	1424.9	138	15.7	450
HSW.30.1220A														1	12	1435.9	116
HSW.35.1250	1390	1090	120	1350	1150	36	26	6	1251	1248	105	15	90	-0.35	10	1443	143	15.7	520
HSW.35.1250A														1.15	12	1449.6	117
HSW.35.1435	1595	1278	120	1535	1335	36	26	6	1436	1433	105	15	90	1	12	1665.5	134	18.8	610
HSW.35.1435A														1.4	14	1661.2	115
HSW.35.1540	1720	1360	140	1660	1420	42	26	6	1541	1538	122	18	110	1.15	12	1781.8	144	23	732
HSW.35.1540A

 



 

	Boundary dimensions			Bolt hole diameter				Structure dimensions						Gear parameters					Basic load ratings	Mass
external gear type	D	d	H	D1	D2	n	φ	D3	d1	H1	h	n3	φ3	m	Da	Z	b	x	Coa	kg
	mm			mm			mm	(D3')	(d1')				mm		mm		mm		104 N
021·25·500·	616	384	106	580	420	20	18	523	517	96	26	4	M10×1	5	645	126	60	+0.5	121	100
022·25·500·														6	648	105
021·25·560·	676	444	106	640	480	20	18	583	577	96	26	4	M10×1	5	705	138	60	+0.5	134	115
022·25·560·														6	708	115
021·25·630·	746	514	106	710	550	24	18	653	647	96	26	4	M10×1	6	792	129	60	+0.5	153	130
022·25·630·														8	792	96
021·25·710·	826	594	106	790	630	24	18	733	727	96	26	4	M10×1	6	864	141	60	+0.5	173	140
022·25·710·														8	864	105
021·30·800·	942	658	124	898	702	30	22	828	822	114	29	6	M10×1	8	984	120	80	+0.5	230	200
022·30·800·														10	990	96
021·30·900·	1042	758	124	998	802	30	22	928	922	114	29	6	M10×1	8	1088	133	80	+0.5	258	250

 

 

	Boundary dimensions			Bolt hole diameter				Structure dimensions						Gear parameters					Basic load ratings	Mass
internal gear type	D	d	H	D1	D2	n	φ	D3	d1	H1	h	n3	φ3	m	da	Z	b	x	Coa	kg
	mm			mm			mm	(D3')	(d1')				mm		mm		mm		104 N
023·25·500·	616	384	106	580	420	20	18	483	477	96	26	4	M10×1	5	355	72	60	+0.5	121	100
024·25·500·														6	348	59
023·25·560·	676	444	106	640	480	20	18	543	537	96	26	4	M10×1	5	415	84	60	+0.5	134	115
024·25·560·														6	408	69
023·25·630·	746	514	106	710	550	24	18	613	607	96	26	4	M10×1	6	480	81	60	+0.5	153	130
024·25·630·														8	472	60
023·25·710·	826	594	106	790	630	24	18	693	687	96	26	4	M10×1	6	558	94	60	+0.5	173	140
024·25·710·														8	552	70
023·30·800·	942	658	124	898	702	30	22	778	771	114	29	6	M10×1	8	616	78	80	+0.5	230	200
024·30·800·														10	610	62
023·30·900·	1042	758	124	998	802	30	22	878	871	114	29	6	M10×1	8	712	90	80	+0.5	258	250
024·30·900·														10	710	72
023·30·1000·	1142	858	124	1098	902	36	22	978	971	114	29	6	M10×1	10	810	82	80	+0.5	286	300
024·30·1000·														12	792	67
023·30·1120·	1262	978	124	1218	1022	36	22	1098	1091	114	29	6	M10×1	10	920	93	80	+0.5	321	340
024·30·1120·														12	912	77
023·40·1250·	1426	1074	160	1374	1126	40	26	1218	1214	150	39	6	M10×1	12	1008	85	90	+0.5	482	580

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