Allfine Double Row Spherical Roller Bearing 21304 21305 21306 21307 21308 21309 21310 21311 21312ca/Cc/E/MB

• Customization: Available
• Certification: ISO9001, Ts16949, ISO9006, QS9000, CE
• Retainer: Ca/Cc/Cak/E/MB/K30
• Model NO.: 21304 21305 21306 21307 21308 21309
• Clearance: C0 C1 C2 C3 C4 C5
• Hardness: 60-64 HRC
• Quality Guarantee: at Least One Year
• Precision Rating: P6, P0, P5, P4, P2
• The Number of Rows: Double
• Outer Dimension: Medium and Large(120-190mm)
• Specifications: D: 40~280mm
• Lubrication: Oil Lubrication
• Vibration Level: V1, V2, V3, V4
• Cage: Steel Cage or Brass Cage
• Usage: Used in Mining, Paper and Other Machinery Equipmen
• Transport Package: Plastic Bag+Colorful Individual Box+ Outside Cart
• Specification: depend on the bearing models
• Trademark: ALLFINE or OEM
• Origin: China
• HS Code: 84821
• Production Capacity: 500000pieces/Month

Product Description

Product Description

Spherical roller bearings have two rows of symmetrical rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The centre point of the sphere in the outer ring while the raceway is at the bearing axis.
 

We produce different kinds of spherical roller bearings, such as CA / CA /CAK /E/ MB /K30 series, etc...

Detailed Photos

Why the Spherical roller bearings that produced by us with superior quality? The below three aspects decides it.
1) We adopt Bainite quenching:
High hardness, more wear-resistant;

2)The raceway is super-polished:
Low noise, high speed;

3)We use super precision rollers:
Good wear resistance;

Product Parameters

 

Bearing No	Dimensions(mm)			Load Ratings(Kn)		(RPM)		Mounting Dimensions(mm)
								da	Da	ra
	d	D	B	Cr	Cor	Grease	Oil	Min	Max	Max
21304	20	52	15	32	32	6100	7500	27	45	1.0
21305	25	62	17	42	45	5400	6800	32	55	1.0
21306	30	72	19	58	64	4400	5800	37	65	1.0
21307	35	80	21	65	75	4200	5400	44	71	1.5
21308	40	90	23	89	99	3800	4500	49	81	1.5
21309	45	100	25	106	118	3400	3800	54	91	1.5
21310	50	110	27	124	144	3000	4000	60	100	2.0
21311	55	120	29	146	175	2800	3400	65	110	2.0
21312	60	130	31	167	201	2600	3300	72	118	2.1
21313	65	140	33	188	235	2400	3200	77	128	2.1
21314	70	150	35	218	276	2200	2900	82	138	2.1
21315	75	160	37	245	311	2000	2800	87	148	2.1
21316	80	170	39	268	359	2000	2400	92	158	2.1
21317	85	180	41	307	397	1800	2200	99	166	2.5
21318	90	190	43	330	433	1600	2200	104	176	2.5
21319	95	200	45	366	500	1700	2200	109	186	2.5
21320	100	215	47	397	546	1600	2000	114	201	2.5
21321	105	225	49	420	575	1500	1900	119	211	2.5
21322	110	240	50	460	635	1400	1800	124	226	2.5

Application

       Metallurgical industry                  Mining industry                            Cement machinery             Food packaging industry

Why choose us?

Shandong Allfine Auto Parts Co., Ltd, is a precision bearing manufacturer integrating R&D, production and sales, with over 30 years bearing production experience;


Covering an area of 10,000 square meters, with 17 advanced bearing production lines and the annual output is more than 300 million sets;


Shandong Allfine Auto Parts Co., Ltd are suppying bearings for customers over  26 countries up to now; Some of them are the TOP 5 in the bearing field in their local marcket;

We have passed the ISO9001:2000 International Quality Management System, SGS certification and got the Certificate of Import & Export from our government;
 

Certifications

Packaging & Shipping

Our packing:

Industrial package+outer carton+pallets;

Single box+outer carton+pallets;

Tube package+middle box+outer carton+pallets;

According to your requirements;

Recommended products

Except for this kind of bearing, our factory also produce many other bearing types, such as deep groove ball bearing, tapered roller bearing, Spherical roller bearing, Cylindrical roller bearing, Self-Aligning ball bearing, Thrust ball/roller bearing, Needle roller bearing, Pillow block bearing, Insert bearing, Square Bore Agricultural Bearing, Clutch bearing, Linear Bearing, Radial spherical plain bearing, Automotive bearing, etc.


Q: Could you supply sample for free?
A: Yes, we provide free samples;
1) Samples quantity: 1-10 PCS are available.
2) Free samples: It depends on the Model No., and quantity. Some of the bearings samples need client to pay the shipping cost.

Q: Could you accept OEM and customize?
A:  Yes, the customized LOGO or drawing is acceptable for us.
Our OEM policy as below:
1).We can printing your brand on the bearing.
2).We can custom your packaging includes the platic bag, individual box, outside carton according to your design;
3).All copyright own by clients and we promised don't disclose any info.

Q: How many the MOQ of your company?
A: Our company MOQ is 1pcs.

Q: Is it your company is factory or Trade Company?
A: We are factory, with over 10,000 square meter workshop, welcome you to visit us at any time, by any way.

Q:  What is the quality guarantee of your bearing?
A: 1) The defect rate of the new goods that you receive is ZERO;
2) The service lif of the normal industrial bearing such as ball bearing is 2 years, the service life of the automotive bearings is at least 5,000 KM; Regard to the detailed quality guarantee of accurate bearing models,welcome to contact with our sales to get the detailes.
  
Q:  What is the delivery time?
A: 7-15 days , mostly base on your order quantity;

Q: How to contact us quickly?
A:  Please send us an inquiry or message, or leave your other contact information, such as Whatsapp number. We will contact you within 12 hours and provide the detailed information you need.


Extra Support:
We have professional catalog and data of all kinds of bearings, just tell me your item number, our price and quality detailed information will be offered to you within 12 hours.

We can satisfy you on difference aspects, such as the material of the bearings, the precision rating, the seals type, the OEM service,etc.