Best-Selling Custom Custom Automotive Tapered Roller Auto Bearing for Motorcycle Wheel

• Customization: Available
• Precision: P0/P6/P5/P4
• Material: Gcr15
• Model NO.: 30306 30307 30309 30310
• Hardness: 60 - 64 HRC
• Clearance: C0/C3/C4/C5/C6
• Transport Package: Wooden Case
• Specification: As your needs
• Trademark: LUVIVO
• Origin: China
• Package Size: 40.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 10.000kg

Product Description

Product Description

Product Description:

The 303 series (30306, 30307, 30309, 30310) is designed for applications requiring superior structural rigidity and the ability to handle heavy combined loads. Compared to the 302 series, the 303 range features a thicker cross-section and larger rolling elements, making it the preferred choice for machine tool spindles, heavy-duty reducers, and agricultural equipment. We utilize advanced heat treatment to ensure the rings can withstand intense impact forces without surface flaking. The high-quality steel cage ensures stable roller guidance even during rapid acceleration. Our 303 series bearings are engineered to provide zero-clearance operation when properly preloaded, ensuring maximum system stiffness. For manufacturers seeking a robust, long-lasting component that minimizes maintenance downtime, our 303 series provides the reliability needed for high-torque industrial environments.

Specification

Bearing No.	Dimensions(mm)			Weight	Bearing No.	Dimensions(mm)			Weight
	d	D	T	kg		d	D	T	kg
30202	15	35	11	0.053	30302	15	42	13	0.098
30203	17	40	13.25	0.079	30303	17	47	15.25	0.129
30204	20	47	15.25	0.126	30304	20	52	16.25	0.165
30205	25	52	16.25	0.154	30305	25	62	18.25	0.263
30206	30	62	17.25	0.231	30306	30	72	20.75	0.387
30207	35	72	18.25	0.331	30307	35	80	22.75	0.515
30208	40	80	19.75	0.422	30308	40	90	25.25	0.747
30209	45	85	20.75	0.474	30309	45	100	27.25	0.984
30210	50	90	21.75	0.529	30310	50	110	29.25	1.28
30211	55	100	22.75	0.713	30311	55	120	31.5	1.63
30212	60	110	23.75	0.904	30312	60	130	33.5	1.99
30213	65	120	24.75	1.13	30313	65	140	36	2.44
30214	70	125	26.25	1.26	30314	70	150	38	2.98
30215	75	130	27.25	1.36	30315	75	160	40	3.57
32203	17	40	17.25	0.102	32304	20	52	22.25	0.23
32204	20	47	19.25	0.16	32305	25	62	25.25	0.368
32205	25	52	19.25	0.187	32306	30	72	28.75	0.562
32206	30	62	21.25	0.287	32307	35	80	32.75	0.763
32207	35	72	24.25	0.445	32308	40	90	35.25	1.04
32208	40	80	24.75	0.532	32309	45	100	38.25	1.4
32209	45	85	24.75	0.573	32310	50	110	42.25	1.89
32210	50	90	24.75	0.626	32311	55	120	45.5	2.37
32211	55	100	26.75	0.853	32312	60	130	48.5	2.9
32212	60	110	29.75	1.17	32313	65	140	51	3.51
32213	65	120	32.75	1.55	32314	70	150	54	4.34
32214	70	125	33.25	1.64	32315	75	160	58	5.37
32215	75	130	33.25	1.74	32316	80	170	61.5	6.38
32004X	20	42	15	0.095	33005	25	47	17	0.129
32005X	25	47	15	0.11	33006	30	55	20	0.201
32006X	30	55	17	0.17	33007	35	62	21	0.25
32007X	35	62	18	0.224	33008	40	68	22	0.306
32008X	40	68	19	0.267	33009	45	75	24	0.398
32009X	45	75	20	0.337	33010	50	80	24	0.433
32010X	50	80	20	0.366	33011	55	90	27	0.651
32011X	55	90	23	0.551	33012	60	95	27	0.691
32012X	60	95	23	0.584	33013	65	100	27	0.732
32013X	65	100	23	0.62	33014	70	110	31	1.07
32014X	70	110	25	0.839	33015	75	115	31	1.12
32015X	75	115	25	0.872	33016	80	125	36	1.63

Company Profile

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FAQ

Q1: Are you a bearing manufacturer or a sourcing agent? 
A: We are an industrial sourcing and supply chain execution firm specializing in bearings. Unlike a traditional factory limited to its own production lines, we act as your external procurement office in China. We provide rigorous requirement checking, factory auditing, and 100% controlled order execution to ensure the products you receive match your technical specifications exactly.

Q2: Why should I work with an execution-type company instead of buying directly from a factory?
A: Buying from a factory often means you bear the risk of communication gaps and inconsistent QC. We bridge this gap by providing neutral quality oversight. Our value lies in predictability: we manage the "uncertainty" of Chinese manufacturing—handling everything from technical verification and anti-rust protocols to document accuracy—so your port-side operations are never delayed. 

Q3: How do you guarantee the quality consistency of industrial bearings? 
A: Our execution follows a Zero-Defect Protocol. This includes:
Requirement Check: Verifying clearance (C2/C3), precision grades (P5/P6), and grease types before production starts.
On-site PSI (Pre-Shipment Inspection): A 12-point physical check covering dimensional accuracy, noise levels, and surface finish.
Visual Proof: Providing high-resolution photos/videos of your specific batch before it leaves the warehouse.

Q4: How do you prevent rust and damage during long-term sea transit? 
A: We implement Seaworthy Protection Standards. All bearings are treated with VCI (Volatile Corrosion Inhibitor) anti-rust film or vacuum-sealed. For outer packaging, we use IPPC-standard fumigation-free plywood crates and reinforced internal padding to prevent shifting and impact during maritime transport.

 

Q5: Can you handle customized labeling and private brand packaging? 

A: Yes. We specialize in consistent branding execution. We ensure that your Logo, SKU labels, and shipping marks are 100% compliant with your local market requirements. We emphasize labeling integrity to ensure that your warehouse team can scan and stock the goods immediately upon arrival without confusion.