6307 Deep Groove Ball Bearing for Automotive and Industrial Motors

Product Description

Product Description

Section	English Product Description	Recommended Placement
Product Name	6307 Deep Groove Ball Bearing	Main heading
Key Specification	35 mm bore × 80 mm outside diameter × 21 mm width. Available in Open, ZZ and 2RS designs.	Opening specification line
Product Overview	The 6307 is a single-row deep groove ball bearing designed for reliable radial load support and moderate axial load capability in both directions. Its standard dimensions, low-friction running characteristics and flexible sealing options make it suitable for electric motors, automotive equipment, pumps, fans, gearboxes and general industrial machinery.	Introduction
Key Features	• Standard 35 × 80 × 21 mm dimensions • Suitable for radial loads and moderate axial loads in both directions • Low-friction operation with stable running performance • Open, double-shielded (ZZ) and double-sealed (2RS) options • Precision, clearance, noise and vibration grades available for different applications • Grease or oil lubrication options	Feature section
Design Options	6307 Open - designed for clean housings, external lubrication or applications with separate sealing. 6307 ZZ - fitted with metal shields on both sides for low-friction protection and grease retention. 6307 2RS - fitted with rubber seals on both sides for improved protection against dust and splash.	Design comparison
Materials and Manufacture	Manufactured from high-carbon chromium bearing steel with controlled heat treatment and precision-ground raceways. The bearing is produced for consistent dimensional accuracy, smooth rotation and dependable service performance.	Product construction
Available Grades	Precision grades: P0, P6, P5 and P4. Internal clearance options: C0, C2 and C3. Noise grades: Z1, Z2 and Z3. Vibration grades: V1, V2 and V3. Final availability is confirmed according to the selected bearing design and order requirements.	Technical options
Typical Applications	Automotive electric motors, industrial AC/DC motors, pumps, fans, blowers, gearboxes, transmission equipment, motorcycles, conveyors, agricultural machinery and production equipment.	Application section
Lubrication	Grease or oil lubrication can be selected according to operating speed, temperature, load, maintenance interval and surrounding conditions.	Technical guidance
Installation Guidance	Keep the bearing and surrounding components clean during installation. Apply mounting force only to the ring being fitted and do not transmit mounting force through the rolling elements. Check shaft and housing fits, shoulders, alignment and operating clearance before trial operation.	Installation section
Quality Assurance	IATF 16949 Certified. Dimensional, appearance, rotational, noise and vibration inspections are available according to agreed requirements.	Quality section
Marking and Packaging	Standard products use YW marking and export packaging. Custom marking and packaging can be discussed according to order quantity and agreed requirements.	Packaging section
Ordering Information	For an accurate quotation, please provide the bearing designation, quantity, design option, precision grade, internal clearance, noise and vibration requirements, application, operating speed, load conditions, temperature range, lubrication, inspection documents and packaging requirements. Minimum order quantity: 3,000 pieces.	Inquiry section

6307 Design Comparison
Select Open, ZZ or 2RS according to contamination, lubrication, speed and maintenance conditions.
 

Design	Protection	Friction / Speed	Contamination Protection and Grease Retention	Typical Applications
Open	No integral shield or seal	Lowest closure friction; suitable for higher-speed operation	Relies on external sealing and lubrication	Clean housings, external oil lubrication and serviceable equipment
6307 ZZ	Metal shields on both sides	Low friction with basic protection	Helps reduce the entry of larger contaminants and retain grease	Electric motors, enclosed machinery and general industrial environments
6307 2RS	Rubber seals on both sides	Contact seals increase friction and operating temperature	Improved protection against dust and splash with stronger grease retention	Dusty or splash-prone environments and maintenance-limited equipment

6307 Applications and Selection
For sales communication, inquiry information collection and installation guidance.

Typical Applications
Application Category	Equipment Examples	Main Considerations	Information to Confirm
Automotive and Vehicle	Automotive electric motors, motorcycles and general vehicle equipment	Low noise, vibration and reliability	Precision grade, internal clearance and noise/vibration grade
Industrial Motors	AC/DC motors, fans and blowers	Operating speed, temperature rise and noise	Design, lubrication, speed and temperature
Transmission Equipment	Gearboxes and transmission equipment	Radial load and moderate axial load	Load direction, load magnitude and service life requirements
General Machinery	Pumps, conveyors, agricultural machinery and production equipment	Contamination, maintenance and lubrication	Seal design, lubrication and maintenance interval

 

Product Parameters

Parameter	Value / Option	Unit	Verification Note
Bearing type	Single-row deep groove ball bearing		Fixed description
Bore diameter (d)	35	mm	Standard dimension
Outside diameter (D)	80	mm	Standard dimension
Width (B)	21	mm	Standard dimension
Closure options	Open / ZZ / 2RS		Confirm with order
Precision grade	P0 / P6 / P5 / P4		Confirm with order
Internal clearance	C0 / C2 / C3		Confirm with order
Noise level	Z1 / Z2 / Z3		Confirm with order
Vibration level	V1 / V2 / V3		Confirm with order
Bearing material	AISI 52100 / 100Cr6 / GCr15		Confirm with order
Lubrication	Grease or oil		Confirm for operating conditions
Reference dynamic load rating	33,500	N	Verify against approved drawing
Reference static load rating	19,000	N	Verify against approved drawing
Reference limiting speed, grease	8,500	rpm	Verify for selected design and lubrication
Reference limiting speed, oil	10,000	rpm	Verify for selected design and lubrication
Minimum order quantity	3,000	pieces	Consistent with product listing

Model	Bore Diameter (d)	Outer Diameter (D)	Width (B)	rsmin (mm)	Cr (kN)	Cor (kN)	Limit Speed -Oil (rpm)	Limit Speed-Grease (rpm)	Weight (kg)
6300	10	35	11	0.6	8.15	3.45	22,000	28,000	0.054
6301	12	37	12	1	9.65	4.15	20,000	26,000	0.061
6302	15	42	13	1	11.4	5.4	18,000	22,000	0.108
6303	17	47	14	1	13.4	6.55	16,000	19,000	0.111
6304	20	52	15	1	17.3	8.5	14,000	17,000	0.148
6305	25	62	17	1.1	22.4	11.4	11,000	14,000	0.232
6306	30	72	29	1.1	29	16.3	9,500	12,000	0.343
6307	35	80	21	1.5	33.5	19	8,500	10,000	0.458
6308	40	90	23	1.5	42.5	25	7,500	9,000	0.632
6309	45	100	25	1.5	53	32	6,700	8,000	0.848
6310	50	110	27	2	62	38	6,000	7,000	1.1
6311	55	120	29	2	76.5	47.5	5,300	6,300	1.39
6312	60	130	31	2.1	81.5	52	5,000	6,000	1.72
6313	65	140	33	2.1	93	60	4,500	5,300	2.13
6314	70	150	35	2.1	104	68	4,300	5,000	2.63
6315	75	160	37	2.1	114	76.5	4,000	4,800	3.12
6316	80	170	39	2.1	122	86.5	3,800	4,500	3.73
6317	85	180	41	3	125	88	3,400	4,000	4.24
6318	90	190	43	3	134	102	3,400	4,000	5.27
6319	95	200	45	3	143	112	3,200	3,800	6.14
6320	100	215	47	3	163	134	3,000	3,600	7.56
6321	105	225	49	3	173	146	2,800	3,400	8.63
6322	110	240	50	3	190	166	2,600	3,200	10.3
6324	120	260	55	3	212	190	2,400	3,000	12.8
6326M	130	280	58	4	228	216	2,200	2,800	18.2
6328M	140	300	62	4	255	245	2,000	2,600	22.1
6330M	150	320	65	4	285	300	1,900	2,400	26.6
6332M	160	340	68	4	300	325	1,800	2,200	31.5
6334M	170	360	72	4	325	365	1,700	2,000	37
6336M	180	380	75	4	355	405	1,600	1,900	43.3
6338M	190	400	78	5	375	440	1,500	1,800	50
6340M	200	420	80	5	380	465	1,400	1,700	56.6
6344M	220	460	88	5	430	550	1,300	1,600	74.5
6348M	240	500	95	5	465	620	1,200	1,500	96

 

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FAQ

Q1: Are you a factory or a trader?
A: We are a manufacturer integrating industry and trade. Welcome to visit our company.

Q2: Can I add my LOGO to the product?
A: We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.

Q3: What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.

Q4: What are your modes of transportation?
A: We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.

Q5: How can I get an accurate quotation?
A: You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.