Single Row Ball Slewing Bearing

SWBTEC SLEWING BEARING

Single Row Ball Slewing Bearing

Single-row ball slewing bearings are divided into internal tooth, external tooth and toothless structure, which are suitable for a variety of transmission needs. Its advantages are significant: with high load carrying capacity and anti-tilting, smooth operation, low friction loss; compact structure, easy to install, adapt to frequent rotation and heavy-duty working conditions, strong durability. However, it should be noted that the installation precision requirements are stringent, if the standard is not met, it is easy to cause wear and tear of partial load; in addition, extreme high speed or impact environment performance is slightly inferior to the multi-row ball type. Widely used in construction machinery such as cranes and excavators.

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Product Documentation

SLEWING BEARING parameter details

No.	Type	Configuration Size					Mounting Size						Structural Size			Gear Data						Weight(KG)

	QU.QW.QN	QU(D=Internal gear D,d=External gear d)				H	D1	D2	n	Through Hole	Screw Hole		n1 (Grease Hole Qty)	H1	h	B	module	X=-0.5(External Gear Data)		X=+0.5(Internal Gear Data)		External Gear Type	Internal Gear Type
		External Gear		Internal Gear
										A Type	B,C,D Type
	Ball Size	D	d	D	d					φ	M	L (Thread Length)						Da	Z	da	Z
1	315.20	406	222	408	224	60	370	260	10	17	M16	24	2	50	10	40	3	423	140	207	70	35	34
	315.20A																4	428	106	200	51	36	35
2	355.20	446	262	448	264	60	410	300	10	17	M16	24	2	50	10	40	3	462	153	246	84	40	39
	355.20A																4	468	116	240	61	41	40
3	400.20	490	307	493	310	60	455	345	12	17	M16	24	2	50	10	40	4	512	127	288	73	45	44
	400.20A																5	520	103	280	57	47	46
4	450.20	540	357	543	360	60	505	395	12	17	M16	24	2	50	10	40	4	564	140	336	85	51	50
	450.20A																5	570	113	330	67	43	52
5	500.20	590	407	593	410	60	555	445	14	17	M16	24	2	50	10	40	5	615	122	385	78	56	55
	500.20A																6	624	103	378	64	58	57
6	560.20	654	464	656	468	70	618	502	14	17	M16	30	2	60	10	50	4	680	169	440	111	78	76
	560.20A																5	685	136	435	88	79	77
7	630.20	724	534	726	538	70	688	572	16	17	M16	30	2	60	10	50	4	748	186	512	129	86	84
	630.20A																5	755	150	505	102	88	86
8	710.20	804	614	806	618	70	768	652	18	17	M16	30	2	60	10	50	5	835	166	585	118	99	97
	710.20A																6	840	139	582	98	101	97
9	800.20	894	704	896	708	70	858	742	20	17	M16	30	2	60	10	50	6	930	154	672	113	114	110
	800.20A																8	936	116	664	84	114	111
10	800.25	904	692	908	694	78	864	736	18	22	M20	36	2	68	10	58	6	942	156	654	110	143	142
	800.25A																8	952	118	648	82	147	142
11	900.25	1004	792	1008	794	78	964	836	20	22	M20	36	2	68	10	58	8	1048	130	744	94	162	163
	900.25A																10	1060	105	740	75	168	162
12	1000.25	1104	892	1108	894	78	1064	936	24	22	M20	36	2	68	10	58	8	1152	143	848	107	182	178
	1000.25A																10	1160	115	840	85	185	179
13	1000.32	1120	876	1124	880	90	1074	926	24	24	M22	40	2	80	10	70	8	1160	144	832	105	227	230
	1000.32A																10	1170	116	830	84	232	227
14	1120.32	1240	996	1244	1000	90	1194	1046	28	24	M22	40	4	80	10	70	10	1300	129	940	95	272	263
	1120.32A																12	1308	108	936	79	275	262
15	1250.32	1370	1126	1374	1130	90	1324	1176	32	24	M22	40	4	80	10	70	10	1430	142	1070	108	302	294
	1250.32A																12	1440	119	1068	90	309	290
16	1400.32	1520	1276	1524	1280	90	1474	1326	36	24	M22	40	4	80	10	70	12	1584	131	1212	102	337	333
	1400.32A																14	1596	113	1204	87	347	336
17	1250.40	1390	1108	1394	1110	102	1336	1164	32	26	M24	45	4	90	12	80	10	1450	144	1050	106	396	388
	1250.40A																12	1452	120	1044	88	392	388
18	1400.40	1540	1258	1544	1260	102	1486	1314	36	26	M24	45	4	90	12	80	12	1608	133	1188	100	448	444
	1400.40A																14	1610	114	1190	86	443	434
19	1600.40	1740	1458	1744	1460	102	1686	1514	40	26	M24	45	4	90	12	80	12	1812	150	1392	117	528	509
	1600.40A																14	1820	129	1386	100	534	511
20	1800.40	1940	1658	1944	1660	102	1886	1714	44	26	M24	45	4	90	12	80	14	2016	143	1582	114	583	576
	1800.40A																16	2032	126	1568	99	607	591
21	1600.50	1762	1434	1766	1438	124	1704	1496	40	30	M27	50	4	112	12	100	12	1824	151	1368	115	714	714
	1600.50A																14	1834	130	1358	98	727	723
22	1800.50	1964	1634	1966	1638	124	1904	1696	44	30	M27	50	4	112	12	100	14	2044	145	1568	113	845	794
	1800.50A																16	2048	127	1552	98	843	818
23	2000.50	2162	1834	2166	1842	124	2104	1896	48	30	M27	50	6	112	12	100	16	2240	139	1760	111	912	891
	2000.50A																18	2250	124	1746	98	927	913
24	2240.50	2402	2074	2406	2078	124	2344	2136	54	30	M27	50	6	112	12	100	16	2480	154	1984	125	1020	1044
	2240.50A																18	2502	138	1980	111	1078	1041
25	2500.50	2662	2334	2666	2342	124	2604	2396	60	30	M27	50	6	112	12	100	18	2754	152	2250	126	1171	1132
	2500.50A																20	2760	137	2240	113	1175	1148
26	2500.60	2696	2304	2696	2308	150	2626	2374	60	33	M30	56	6	136	14	122	18	2790	154	2214	124	1677	1621
	2500.60A																20	2800	139	2200	111	1701	1654

WHY CHOOSE SWBTEC

From the very beginning of the selection and design and drawing quotation to shipment and after-sales service, we will have experienced technical team and sales team to track the whole process.

After about 20 years of development, SWBTEC has obvious advantages in the peer group, no matter from the quality to the price.

ISO 9001-Certified Quality Management

Our adherence to globally recognized ISO 9001 standards ensures consistent product excellence, rigorous process control, and continuous improvement across every production stage.

Rigorous Internal Quality Control

From raw material inspection to final assembly, our multi-layered quality protocols guarantee precision, durability, and compliance with industry specifications.

20 Years of Expertise in Slewing Bearing Manufacturing

Two decades of specialized experience empower us to deliver reliable, industry-tailored solutions backed by deep technical knowledge and proven performance.

Expert Engineering & Innovative Design Capabilities

Our seasoned engineers leverage cutting-edge tools and hands-on experience to create customized, high-efficiency designs for diverse operational demands.

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Annual R&D Investment for Technological Advancement

Dedicated yearly funding drives slewing rings production process optimization, and next-gen slew ring solutions to stay ahead of evolving market needs.

Regularly upgraded CNC equipment and machine

Regularly updated CNC machines ensure micron-level precision, repeatable tolerances (±0.01 mm) and perfect geometrical consistency in every dimension.

Get product information and quotes.

Our customers are ready to answer your questions.

ABOUT SWBTEC

Precision in Rotation: Your Trusted Partner in Slewing Bearing

Established as a leading manufacturer of high-performance slewing bearings, SWBTEC has been at the forefront of innovation and reliability since our inception. With over 65% of our products exported to global markets since 2007, we have solidified our reputation as a trusted OEM supplier to major domestic and international equipment manufacturers. Our commitment to precision engineering, stringent quality control, and customer-centric solutions has positioned us as a preferred partner across industries requiring slewing bearings.

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About Us

Precision in Rotation: Your Trusted Partner in Slewing Bearing

Established as a leading manufacturer of high-performance slewing bearings, SWBTEC has been at the forefront of innovation and reliability since our inception. With over 65% of our products exported to global markets since 2007, we have solidified our reputation as a trusted OEM supplier to major domestic and international equipment manufacturers.

Our commitment to precision engineering, stringent quality control, and customer-centric solutions has positioned us as a preferred partner across industries requiring slewing bearings.

Two Decades of Expertise, Delivering Excellence

Our journey began with a vision to redefine industry standards, driven by a team of seasoned professionals. Our technical and production leaders bring over 20 years of specialized experience in slewing bearing design and manufacturing.

Our workforce includes 70 highly skilled employees, 90% of whom possess more than 8 years of hands-on experience in CNC machining and precision engineering—ensuring each piece meets the demanding needs of diverse industries.

Advanced Manufacturing Capabilities

Our vertically integrated facility includes cutting-edge CNC machining centers and offers complete control over the entire production process:

Precision Machining: Advanced CNC lathes and high-precision hobbing machines for micron-level gear and raceway accuracy.
Heat Treatment Excellence: In-house induction hardening and tempering ensure resistance and durability.
Threading Perfection: German-brand extrusion taps produce ISO-compliant threads for unmatched reliability.

With a monthly output of over 2,500 units, we combine efficiency with meticulous attention to detail.

Quality: The Foundation of Our Legacy

Quality is embedded in our DNA. Our dual-certified system includes:

ISO 9001 Compliance: International quality management standards.
Proprietary QC Protocols: Full-spectrum inspection: material testing, dimensional verification, load capacity validation.

We maintain near-zero customer complaints, a 99% on-time delivery rate, and 100% batch traceability for full accountability.

Global Reach, Localized Impact

SWBTEC slewing rings serve critical applications in over 9 countries:

Construction Machinery: Slewing rings for excavators, cranes, and aerial platforms.
Sustainable Infrastructure: Custom solutions for wastewater rotators and forestry harvesters.
Specialized Equipment: High-precision slewing bearings for medical imaging devices.

We actively participate in major exhibitions such as Bauma Germany, CONEXPO-CON/AGG Las Vegas, and Shanghai Bauma to foster global engagement.

Driving the Future of Slewing Bearing

As industries evolve, so do we. Our R&D efforts focus on:

Process Innovation: Custom slewing bearings with varied materials and ultra-thin complex structures.
Cost Optimization: Lean manufacturing to reduce costs by 15% over two years—without sacrificing quality.

Why Partner With Us?

Proven Reliability: 16 years of flawless export performance.
Technical Agility: Custom engineering support for complex applications.
Total Quality Commitment: “Zero Defect” shipment policy.

Join the Revolution in Slewing Bearing Technology

SWBTEC is more than a supplier—we’re your engineering ally. Whether improving existing equipment or innovating next-gen systems, our precision solutions boost your competitive edge.

Explore how our slewing bearings can transform your applications. Contact us today for technical specs or a facility audit.

Precision Engineered. Globally Trusted.
SWBTEC – Where Slewing Bearings Meet Innovation.

Single Row Ball Slewing Bearing

Slewing Ring Bearing With External Gear

Slewing Bearing Without Gear

Double Row Ball Slewing Bearing

Slewing Bearing With Internal Gear

Cross Roller Slewing Bearing

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QUALITY / CERTIFICATES

At SWBTEC, quality is the foundation of everything we do. We have established a comprehensive quality control system that covers every stage of production — from raw material sourcing to final inspection.

Our manufacturing process strictly follows ISO 9001 quality management standards.

Our commitment to quality is not just a promise — it’s proven by certifications and trusted by customers worldwide.

Comprehensive Quality Control

Precision dimensions, controlled raceway & gear hardness/depth, optimized clearance, minimized runout

Certified for Global Applications

We also support custom quality requirements and third-party testing. No matter the industry — robotics, mining, or packaging — our products meet both international standards and client expectations.

CUSTOMER REVIEWS

★ ★ ★ ★ ★

“We’ve been sourcing slewing bearings from SWBTEC for over five years. Their products are durable, precise, and handle our heavy-duty excavators perfectly. After-sales support is also fast and professional.”

Alex Gorsky

Heavy Industry Enterprises

★ ★ ★ ★ ★

“SWBTEC’s bearings helped improve our production line stability. The consistent quality and long service life save us a lot on maintenance downtime. Truly a reliable partner!”

Gary L.

Factory Supervisor

★ ★ ★ ★ ★

“For our cranes, bearing reliability is critical. SWBTEC delivers exactly what we need—high load capacity, smooth operation, and dependable lead times. Highly recommended.”

James P.

Crane Manufacturers

APPLICATION FIELDS

Construction Industry

Excavator

SWBTEC‘s slewing bearings are used in excavator components

Slewing bearings are often used in excavators to connect structures, achieve rotation, load bearing and stability, etc.

Construction Industry

Crane

Load-bearing and structural connections

Construction Industry

Aerial Work Platform

Support and connect and bear multi-directional loads

Industrial Machinery

Packing Machine

Stable rotary table and high-precision positioning

Medical Equipment

Stable structure, precise rotation control

Forestry And Farming

Withstand heavy loads and operate in harsh environments

Water Treatment

Sedimentation tank scrapers and filters, etc.

Filling Machine

Supports rotating table or filling turntable

Mining Industry

Supports heavy loads and enables rotational motion

Precision Robot

Precisely control the rotation of robot joints

OUR SERVICES

We provide the best services for our customers for sure.

Pre-Sale Services

Our professional engineer which has rich experience in slewing bearing and seller who has rich experience in export business will provide the best advice based on your special requirement.

After-Sale Services

Any feedback of product quality will be replied within 24 hours, new one will be sent out for compensation if any quality problem happened Although the probability of occurrence is very small.

Documents Download

You can click here to download all our supporting documents, including SWBTEC product catalogs, product details, manufacturers, installation and maintenance instructions, etc.

FAQS

1.Which industries are your slewing bearings used in?

Our slewing bearings are widely used in excavators, cranes, aerial work platform, packing machine, Medical equipment, forestry and farming, water treatment, filling machine, Mining Industry and precision robot.

2.Do you offer custom designs?

Yes, we offer custom design and manufacturing based on customer drawings or technical requirements.

3.What is your typical lead time?

For standard models, the lead time is 15–30 days. Custom products may take longer depending on specifications.

4.Which countries do you export to?

We export to countries including Germany, the USA, Japan, South Korea, Italy, Spain, and the UK, among others.

5.What certifications do you have?

We are ISO 9001 certified and continuously improve our manufacturing and inspection processes.

6.How do you ensure product quality?

Every product is tested for dimensions, hardness, gear and raceway quenching quality, and operational performance before delivery.

7.Do you provide installation guidance?

Yes, we provide installation manuals and can offer remote technical support if needed.

8.What if there’s a problem with the product?

We offer warranty support. If any quality issue occurs, please contact our after-sales team for prompt assistance.

9.How can I choose the right slewing bearing model?

We can recommend the appropriate model based on your load, installation space, and working conditions. Custom designs based on drawings are also available.

10.Do you provide 3D drawings or technical documents?

Yes, we can provide 2D drawings, 3D CAD models, and technical documents to assist in your design and selection process.

11.Do slewing bearings require maintenance?

Yes, regular lubrication and inspection are required. We provide maintenance manuals to help extend the bearing’s service life.

12.Is there a minimum order quantity (MOQ)?

We accept small trial orders. The MOQ can be negotiated based on the product type.

RELATED PRODUCTS

Double Row Ball Slewing Bearing

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Cross Roller Slewing Bearing

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Ningguo SWBTEC Slewing Bearing Industry Co.,Ltd.

Location

Zhongyi Industrial Plaza, Ningguo City, Xuancheng City, Anhui Province, China Postal Code: 242311

Email

sales@ngswbtec.com

WhatsApp

+8618098501069

Make a Call

+86 5634113031

Fax

5634113031

SWBTEC SLEWING BEARING

Single Row Ball

Slewing Bearing

Single-row ball slewing bearings are divided into internal tooth, external tooth and toothless structure, which are suitable for a variety of transmission needs. Its advantages are significant: with high load carrying capacity and anti-tilting, smooth operation, low friction loss; compact structure, easy to install, adapt to frequent rotation and heavy-duty working conditions, strong durability. However, it should be noted that the installation precision requirements are stringent, if the standard is not met, it is easy to cause wear and tear of partial load; in addition, extreme high speed or impact environment performance is slightly inferior to the multi-row ball type. Widely used in construction machinery such as cranes and excavators.

Contact Us

Product Documentation

SLEWING BEARING parameter details

No.	Type	Configuration Size					Mounting Size						Structural Size			Gear Data						Weight(KG)

	QU.QW.QN	QU(D=Internal gear D,d=External gear d)				H	D1	D2	n	Through Hole	Screw Hole		n1 (Grease Hole Qty)	H1	h	B	module	X=-0.5(External Gear Data)		X=+0.5(Internal Gear Data)		External Gear Type	Internal Gear Type
		External Gear		Internal Gear
										A Type	B,C,D Type
	Ball Size	D	d	D	d					φ	M	L (Thread Length)						Da	Z	da	Z
1	315.20	406	222	408	224	60	370	260	10	17	M16	24	2	50	10	40	3	423	140	207	70	35	34
	315.20A																4	428	106	200	51	36	35
2	355.20	446	262	448	264	60	410	300	10	17	M16	24	2	50	10	40	3	462	153	246	84	40	39
	355.20A																4	468	116	240	61	41	40
3	400.20	490	307	493	310	60	455	345	12	17	M16	24	2	50	10	40	4	512	127	288	73	45	44
	400.20A																5	520	103	280	57	47	46
4	450.20	540	357	543	360	60	505	395	12	17	M16	24	2	50	10	40	4	564	140	336	85	51	50
	450.20A																5	570	113	330	67	43	52
5	500.20	590	407	593	410	60	555	445	14	17	M16	24	2	50	10	40	5	615	122	385	78	56	55
	500.20A																6	624	103	378	64	58	57
6	560.20	654	464	656	468	70	618	502	14	17	M16	30	2	60	10	50	4	680	169	440	111	78	76
	560.20A																5	685	136	435	88	79	77
7	630.20	724	534	726	538	70	688	572	16	17	M16	30	2	60	10	50	4	748	186	512	129	86	84
	630.20A																5	755	150	505	102	88	86
8	710.20	804	614	806	618	70	768	652	18	17	M16	30	2	60	10	50	5	835	166	585	118	99	97
	710.20A																6	840	139	582	98	101	97
9	800.20	894	704	896	708	70	858	742	20	17	M16	30	2	60	10	50	6	930	154	672	113	114	110
	800.20A																8	936	116	664	84	114	111
10	800.25	904	692	908	694	78	864	736	18	22	M20	36	2	68	10	58	6	942	156	654	110	143	142
	800.25A																8	952	118	648	82	147	142
11	900.25	1004	792	1008	794	78	964	836	20	22	M20	36	2	68	10	58	8	1048	130	744	94	162	163
	900.25A																10	1060	105	740	75	168	162
12	1000.25	1104	892	1108	894	78	1064	936	24	22	M20	36	2	68	10	58	8	1152	143	848	107	182	178
	1000.25A																10	1160	115	840	85	185	179
13	1000.32	1120	876	1124	880	90	1074	926	24	24	M22	40	2	80	10	70	8	1160	144	832	105	227	230
	1000.32A																10	1170	116	830	84	232	227
14	1120.32	1240	996	1244	1000	90	1194	1046	28	24	M22	40	4	80	10	70	10	1300	129	940	95	272	263
	1120.32A																12	1308	108	936	79	275	262
15	1250.32	1370	1126	1374	1130	90	1324	1176	32	24	M22	40	4	80	10	70	10	1430	142	1070	108	302	294
	1250.32A																12	1440	119	1068	90	309	290
16	1400.32	1520	1276	1524	1280	90	1474	1326	36	24	M22	40	4	80	10	70	12	1584	131	1212	102	337	333
	1400.32A																14	1596	113	1204	87	347	336
17	1250.40	1390	1108	1394	1110	102	1336	1164	32	26	M24	45	4	90	12	80	10	1450	144	1050	106	396	388
	1250.40A																12	1452	120	1044	88	392	388
18	1400.40	1540	1258	1544	1260	102	1486	1314	36	26	M24	45	4	90	12	80	12	1608	133	1188	100	448	444
	1400.40A																14	1610	114	1190	86	443	434
19	1600.40	1740	1458	1744	1460	102	1686	1514	40	26	M24	45	4	90	12	80	12	1812	150	1392	117	528	509
	1600.40A																14	1820	129	1386	100	534	511
20	1800.40	1940	1658	1944	1660	102	1886	1714	44	26	M24	45	4	90	12	80	14	2016	143	1582	114	583	576
	1800.40A																16	2032	126	1568	99	607	591
21	1600.50	1762	1434	1766	1438	124	1704	1496	40	30	M27	50	4	112	12	100	12	1824	151	1368	115	714	714
	1600.50A																14	1834	130	1358	98	727	723
22	1800.50	1964	1634	1966	1638	124	1904	1696	44	30	M27	50	4	112	12	100	14	2044	145	1568	113	845	794
	1800.50A																16	2048	127	1552	98	843	818
23	2000.50	2162	1834	2166	1842	124	2104	1896	48	30	M27	50	6	112	12	100	16	2240	139	1760	111	912	891
	2000.50A																18	2250	124	1746	98	927	913
24	2240.50	2402	2074	2406	2078	124	2344	2136	54	30	M27	50	6	112	12	100	16	2480	154	1984	125	1020	1044
	2240.50A																18	2502	138	1980	111	1078	1041
25	2500.50	2662	2334	2666	2342	124	2604	2396	60	30	M27	50	6	112	12	100	18	2754	152	2250	126	1171	1132
	2500.50A																20	2760	137	2240	113	1175	1148
26	2500.60	2696	2304	2696	2308	150	2626	2374	60	33	M30	56	6	136	14	122	18	2790	154	2214	124	1677	1621
	2500.60A																20	2800	139	2200	111	1701	1654

our advantages

From the selection and design and drawing quotation to shipment and after-sales service, we will have experienced team to track the whole process.

ISO 9001-Certified Quality Managementiso

Our adherence to globally recognized ISO 9001 standards ensures consistent product excellence, rigorous process control, and continuous improvement.

Rigorous Internal Quality Control

From raw material inspection to final assembly, our multi-layered quality protocols guarantee precision, durability, and compliance with industry specifications.

20 Years of Expertise in Slewing Bearing Manufacturing

Two decades of specialized experience empower us to deliver reliable, industry-tailored solutions backed by deep technical knowledge and proven performance.

ABOUT SWBTEC

Established as a leading manufacturer of high-performance slewing bearings, SWBTEC has been at the forefront of innovation and reliability since our inception. With over 65% of our products exported to global markets since 2007, we have solidified our reputation as a trusted OEM supplier to major domestic and international equipment manufacturers. Our commitment to precision engineering, stringent quality control, and customer-centric solutions has positioned us as a preferred partner across industries requiring slewing bearings.

ISO quality certification

Experienced Bearing mechanic

quality inspection system

focus on slewing bearings

our factory

SWBTEC operates a modern slewing bearing production base equipped with precision CNC machines, large-scale turning centers, and fully automated assembly lines. Our facilities support both standard and custom bearing solutions with high efficiency.

CERTIFICATES

Comprehensive Quality Control

All key components undergo strict inspection, including gear precision, hardness, and raceway smoothness. Advanced testing tools ensure every bearing meets our high standards before shipment.

Certified for Global Applications

We also support custom quality requirements and third-party testing. No matter the industry — robotics, mining, or packaging — our products meet both international standards and client expectations.

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