two-row four points contact ball slewing ring from China manufacturer

two-row four points contact ball slewing ring

Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: HJB.30.880

Production Capacity: 100000 Piece/Pieces per Mon...

Delivery Date: 50days

Number of row: Double row

Material of race: 42CrMo

Precision: P0

Means of Transport: Ocean,Air

Packing: RNB OR NATURAL

Brand Name: RNB OR NATURAL

Type: Ball bearings

Material of ball: Chrome steel

The double-row slewing ring has three seat-ring .the steel balls and spacers may be directly arranged into the upper and lower raceways.

Double-Row Balls Slewing bearings

CHARACTERISTIC OF STRUCTURE,PERFORMANCE AND APPLICATION

The double-row slewing ring has three seat-ring .the steel balls and spacers may be directly arranged into

the upper and lower raceways. two rows of steel balls with different diameters are fitted according to the

load.Such open mode fitting featurextraordinary convence .the load angles of both upper and lower race are

90, which enable the bearing to bear large axial force the resutant moment. crossed roller bearing, crossed

roller bearings .When the radial force is large than 1/10 of the axial force the raceways should be especially

designed. As the axial and radial dimension of the double-row ball slewing rings are rather large, the bearing

construction is sturdy,hence it is especially suit able for tower cranes which requiring working diameter over

medium range, mobile cranes and loading and unloading machines. crossed roller bearing, crossed roller bearings

  Notes:
  1. n1-number of lurbricating holes, evenly distributed, lubricating nipple M10×1GB1152-1153-79.
  2. Mounting hole n-φ, may be replaced with screw hole, tooth width b may be taken as H-h.
  3. Gear force of periphery given in the table is its maximum value, nominal force of periphery is taken 1/2 of the given value.
  4. The trim top coefficient of outer and inner tooth is 0.1 and 0.2, respectively.
Gear heat treatment forms
Due to the need of transmission power or torque of slewing bearing, there are usually teeth in a ferrule. The general state of heat treatment of gear is normalizing or tempering. And the tooth surface and tooth root is IF Quenching.

Iterm No.			Principaldimensions/mm			Installationdimension				Structure dimension					GearParameter			Outer gearParameter		Inner gearParameter		Gearcircular force		Mass (kg)
D_L mm	D_L mm	D_L mm	D mm	d mm	H mm	D₁ mm	D₂ mm	n	Φ mm	n1	d₁ mm	D₃ mm	H₁ mm	h	b mm	x	m mm	D_e mm	Z	D_e mm	Z	Z 10⁴ N	T 10⁴ N
<a FCK__AnchorC" name="OLE_LINK3">HJB.20.625	HJW.20.625	HJN.20.625	725	525	80	685	565	18	18	3	627	623	68	12	60	+1.4	5	751.9	146	498.8	101		5.2	100
	HJW.20.625A	HJN.20.625A														+1.15	6	755.5	122	496.7	84		6.2
HJB.20.720	HJW.20.720	HJN.20.720	820	620	80	780	660	18	18	3	722	718	68	12	60	+1.4	6	860.3	139	586.6	99		6.2	120
	HJW.20.720A	HJN.20.720A														+1.0	8	861.1	104	582.3	74		8.3
HJB.30.820	HJW.30.820	HJN.30.820	940	705	95	893	749	24	20	4	822	818	83	12	70	+1.4	6	980.6	159	664.5	112		7.2	210
	HJW.30.820A	HJN.30.820A														+1.0	10	986.2	95	658.0	67		12.2
HJB.30.880	HJW.30.880	HJN.30.880	1000	760	95	956	800	24	20	4	882	878	83	12	70	+1.15	8	1047.5	127	718.2	91		9.7	230
	HJW.30.880A	HJN.30.880A														+1.0	10	1046.3	101	707.9	72		12.2
HJB.30.1020	HJW.30.1020	HJN.30.1020	1170	875	95	1120	930	24	22	4	1022	1018	80	15	70	+1.4	8	1219.3	148	830.1	105		9.7	300
	HJW.30.1020A	HJN.30.1020A														+1.15	10	1219.2	118	827.8	84		12.2
HJB.36.1220	HJW.36.1220	HJN.36.1220	1365	1075	120	1310	1130	36	24	6	1222	1218	105	15	90	+1.4	10	1424.9	138	1027.8	104		15.7	450
	HJW.36.1220A	HJN.36.1220A														+1.0	12	1435.9	116	1017.3	86		18.8
HJB.36.1250	HJW.36.1250	HJN.36.1250	1400	1090	120	1350	1150	36	26	6	1252	1248	105	15	90	-0.35	10	1443	143	1037	105		15.7	520
	HJW.36.1250A	HJN.36.1250A														+1.0	12	1449.6	117	1036.8	86		18.8
HJB36.1435	HJW.36.1435	HJN.36.1435	1595	1278	120	1535	1335	36	26	6	1437	1433	105	15	90	+1.15	12	1655.5	134	1221.2	103		18.8	610
	HJW.36.1435A	HJN.36.1435A														+1.0	14	1661.2	115	1214.8	83		21.9
HJB.45.1540	HJW.45.1540	HJN.45.1540	1720	1360	140	1660	1420	42	26	6	1543	1537	122	18	110	+1.4	12	1780.8	144	1293.1	109		23.0	732
	HJW.45.1540A	HJN.45.1540A														+1.15	14	1791.1	124	1284.8	93		26.8
HJB.45.1700	HJW.45.1700	HJN.45.1700	1875	1525	140	1815	1585	42	29	6	1703	1679	122	18	110	+1.15	14	1945.4	135	1452.7	105		26.8	844