STANDARD SERIES

021/022 Series External Gear Double Row Ball Slewing Bearings

Double row four-point contact ball slewing bearings with external gear teeth for applications requiring higher load capacity than single row ball designs.

Double row ballHigher capacityExternal gear

ENGINEERING OVERVIEW

021/022 Double Row External Gear

Double row four-point contact ball slewing bearings with external gear teeth for applications requiring higher load capacity than single row ball designs.

StructureDouble row four-point contact ball

Gear typeExternal gear

Models in this series40 verified rows

MODEL TABLE

021/022 series catalogue parameters

Default columns show ring-body D/d/H plus the critical envelope dimension used for installation clearance. Click a model number to open its generated detail page.

Diameter definition: D is the outer diameter of the ring body and d is the inner diameter of the ring body. For external gear models, the gear is on the outer ring, so the real maximum outside envelope can be De, not D. The structure must leave clearance for Max OD = max(D, De).

Click a model number to open its detail page.

MODEL	D	d	MAX OD	H	MOUNTING HOLES	GEAR m	De / z	WEIGHT	RFQ
021.25.500External gear Envelope dimensions Envelope OD 644 mm Envelope bore 384 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	616	384	644	106	20 x phi 18	5	644 / 126	100	Quote
022.25.500External gear Envelope dimensions Envelope OD 646.8 mm Envelope bore 384 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	616	384	646.8	106	20 x phi 18	6	646.8 / 105	100	Quote
021.25.560External gear Envelope dimensions Envelope OD 704 mm Envelope bore 444 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	676	444	704	106	20 x phi 18	5	704 / 138	115	Quote
022.25.560External gear Envelope dimensions Envelope OD 706.8 mm Envelope bore 444 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	676	444	706.8	106	20 x phi 18	6	706.8 / 115	115	Quote
022.25.630External gear Envelope dimensions Envelope OD 790.4 mm Envelope bore 514 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	746	514	790.4	106	24 x phi 18	8	790.4 / 96	130	Quote
021.25.630External gear Envelope dimensions Envelope OD 790.8 mm Envelope bore 514 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	746	514	790.8	106	24 x phi 18	6	790.8 / 129	130	Quote
022.25.710External gear Envelope dimensions Envelope OD 862.4 mm Envelope bore 594 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	826	594	862.4	106	24 x phi 18	8	862.4 / 105	140	Quote
021.25.710External gear Envelope dimensions Envelope OD 862.8 mm Envelope bore 594 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	826	594	862.8	106	24 x phi 18	6	862.8 / 141	140	Quote
021.30.800External gear Envelope dimensions Envelope OD 982.4 mm Envelope bore 658 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	942	658	982.4	124	30 x phi 22	8	982.4 / 120	200	Quote
022.30.800External gear Envelope dimensions Envelope OD 988 mm Envelope bore 658 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	942	658	988	124	30 x phi 22	10	988 / 96	200	Quote
021.30.900External gear Envelope dimensions Envelope OD 1086.4 mm Envelope bore 758 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1042	758	1086.4	124	30 x phi 22	8	1086.4 / 133	250	Quote
022.30.900External gear Envelope dimensions Envelope OD 1088 mm Envelope bore 758 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1042	758	1088	124	30 x phi 22	10	1088 / 106	250	Quote
022.30.1000External gear Envelope dimensions Envelope OD 1197.6 mm Envelope bore 858 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1142	858	1197.6	124	36 x phi 22	12	1197.6 / 97	300	Quote
021.30.1000External gear Envelope dimensions Envelope OD 1198 mm Envelope bore 858 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1142	858	1198	124	36 x phi 22	10	1198 / 117	300	Quote
022.30.1120External gear Envelope dimensions Envelope OD 1317.6 mm Envelope bore 978 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1262	978	1317.6	124	36 x phi 22	12	1317.6 / 107	340	Quote
021.30.1120External gear Envelope dimensions Envelope OD 1318 mm Envelope bore 978 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1262	978	1318	124	36 x phi 22	10	1318 / 129	340	Quote
022.40.1250External gear Envelope dimensions Envelope OD 1495.2 mm Envelope bore 1074 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1426	1074	1495.2	160	40 x phi 26	14	1495.2 / 104	580	Quote
021.40.1250External gear Envelope dimensions Envelope OD 1497.6 mm Envelope bore 1074 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1426	1074	1497.6	160	40 x phi 26	12	1497.6 / 122	580	Quote
021.40.1400External gear Envelope dimensions Envelope OD 1641.6 mm Envelope bore 1224 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1576	1224	1641.6	160	40 x phi 26	12	1641.6 / 134	650	Quote
022.40.1400External gear Envelope dimensions Envelope OD 1649.2 mm Envelope bore 1224 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1576	1224	1649.2	160	40 x phi 26	14	1649.2 / 115	650	Quote
021.40.1600External gear Envelope dimensions Envelope OD 1845.2 mm Envelope bore 1424 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1776	1424	1845.2	160	45 x phi 26	14	1845.2 / 129	750	Quote
022.40.1600External gear Envelope dimensions Envelope OD 1852.8 mm Envelope bore 1424 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1776	1424	1852.8	160	45 x phi 26	16	1852.8 / 113	750	Quote
021.40.1800External gear Envelope dimensions Envelope OD 2055.2 mm Envelope bore 1624 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1976	1624	2055.2	160	45 x phi 26	14	2055.2 / 144	820	Quote
022.40.1800External gear Envelope dimensions Envelope OD 2060.8 mm Envelope bore 1624 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	1976	1624	2060.8	160	45 x phi 26	16	2060.8 / 126	820	Quote
022.50.2000External gear Envelope dimensions Envelope OD 2300.4 mm Envelope bore 1785 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2215	1785	2300.4	190	48 x phi 33	18	2300.4 / 125	1150	Quote
021.50.2000External gear Envelope dimensions Envelope OD 2300.8 mm Envelope bore 1785 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2215	1785	2300.8	190	48 x phi 33	16	2300.8 / 141	1150	Quote
021.50.2240External gear Envelope dimensions Envelope OD 2540.8 mm Envelope bore 2025 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2455	2025	2540.8	190	48 x phi 33	16	2540.8 / 156	1500	Quote
022.50.2240External gear Envelope dimensions Envelope OD 2552.4 mm Envelope bore 2025 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2455	2025	2552.4	190	48 x phi 33	18	2552.4 / 139	1500	Quote
021.50.2500External gear Envelope dimensions Envelope OD 2804.4 mm Envelope bore 2285 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2715	2285	2804.4	190	56 x phi 33	18	2804.4 / 153	1700	Quote
022.50.2500External gear Envelope dimensions Envelope OD 2816 mm Envelope bore 2285 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	2715	2285	2816	190	56 x phi 33	20	2816 / 138	1700	Quote
021.50.2800External gear Envelope dimensions Envelope OD 3110.4 mm Envelope bore 2585 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3015	2585	3110.4	190	56 x phi 33	18	3110.4 / 170	1900	Quote
022.50.2800External gear Envelope dimensions Envelope OD 3116 mm Envelope bore 2585 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3015	2585	3116	190	56 x phi 33	20	3116 / 153	1900	Quote
021.60.3150External gear Envelope dimensions Envelope OD 3536 mm Envelope bore 2872 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3428	2872	3536	226	56 x phi 45	20	3536 / 174	3300	Quote
022.60.3150External gear Envelope dimensions Envelope OD 3537.6 mm Envelope bore 2872 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3428	2872	3537.6	226	56 x phi 45	22	3537.6 / 158	3300	Quote
022.60.3550External gear Envelope dimensions Envelope OD 3933.6 mm Envelope bore 3272 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3828	3272	3933.6	226	56 x phi 45	22	3933.6 / 176	3700	Quote
021.60.3550External gear Envelope dimensions Envelope OD 3936 mm Envelope bore 3272 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	3828	3272	3936	226	56 x phi 45	20	3936 / 194	3700	Quote
022.60.4000External gear Envelope dimensions Envelope OD 4395 mm Envelope bore 3722 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	4278	3722	4395	226	60 x phi 45	25	4395 / 173	4200	Quote
021.60.4000External gear Envelope dimensions Envelope OD 4395.6 mm Envelope bore 3722 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	4278	3722	4395.6	226	60 x phi 45	22	4395.6 / 197	4200	Quote
021.60.4500External gear Envelope dimensions Envelope OD 4879.6 mm Envelope bore 4222 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	4778	4222	4879.6	226	60 x phi 45	22	4879.6 / 219	4700	Quote
022.60.4500External gear Envelope dimensions Envelope OD 4895 mm Envelope bore 4222 mm D / d meaning D and d are ring-body dimensions; De describes gear diameter or pitch reference depending on series.	4778	4222	4895	226	60 x phi 45	25	4895 / 193	4700	Quote

Catalogue notes

The 021/022 external gear double-row ball series is used when the project needs more load capacity and moment resistance than a single-row ball bearing while retaining a ball-bearing rotation structure. External gear teeth keep the drive pinion accessible, which is helpful for cranes, concrete placing equipment, mobile machinery, heavy manipulators, loading arms, and industrial platforms that require periodic gear inspection or backlash adjustment. During RFQ review, provide axial load, radial load, overturning moment, working cycle, pinion data, and mounting-surface thickness so the double-row structure can be checked correctly.

Catalogue dimensions are reference data and may extend beyond the current verified in-house machining range. Final manufacturing capability is confirmed against the customer drawing before quotation.

Final quotation and production are based on confirmed drawings, load conditions, material requirements, heat treatment, inspection documents, and packing requirements.

RELATED SERIES

Other series in the same structure family

023/024

023/024 Double Row Internal Gear

Double row four-point contact ball slewing bearings with internal gear teeth for heavy-duty equipment requiring compact drive integration.

View data table

020

020 Double Row Ungeared

Ungeared double row ball slewing bearings for applications where higher load capacity is required but gear teeth are not part of the bearing.

View data table

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