Qj109ez Auto Bearing 40X75/85X16mm High Precision Qj109ez Four Point Contact Ball Bearing Stainless Steel Robot Joint Four Point Contact Thin Wall Section Ball

• Dynamic: 42.5
• Static: 30
• Limiting Speed: 20
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QJ 109EZ
• Aligning: Non-Aligning Bearing
• Separated: Unseparated
• Rows Number: Double
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Contact Angle: 0
• Transport Package: Carton, Pallet
• Specification: 40*75*16mm
• Trademark: RTB
• Origin: China
• HS Code: 8482103000
• Production Capacity: 100000 Pieces/Year
• Package Size: 75.00cm * 40.00cm * 16.00cm
• Package Gross Weight: 2.300kg

Product Description

Four point contact ball bearing is a separate bearing, which can also be said to be a set of angular contact ball bearings that can bear two-way axial load. The inner and outer raceways are peach shaped sections. When there is no load or pure radial load, the steel ball and ferrule show four-point contact, which is also the origin of this name. When there is only pure axial load, the steel ball and ferrule become two-point contact and can bear two-way axial load. Four point contact ball bearing can also bear moment load, and has the functions of single row angular contact ball bearing and double row angular contact ball bearing. The four point contact ball bearing can work normally only when two-point contact is formed. Therefore, it is generally applicable to those occasions where there is two-point contact under pure axial load or synthetic load with large axial load. The four-point contact ball bearing has high limit speed and is also suitable for those occasions with high-speed operation.

Designation	Size			dynamic	static	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]
QJ 202 N2MA	15	35	11	12.7	8.3	36 000
QJ 203 N2MA	17	40	12	17	11.4	30 000
QJ 303 N2MA	17	47	14	23.4	15	28 000
QJ 304 MA	20	52	15	32	21.6	24 000
QJ 304 N2MA	20	52	15	32	21.6	24 000
QJ 304 N2PHAS	20	52	15	32	21.6	24 000
QJ 205 MA	25	52	15	27	21.2	22 000
QJ 305 MA	25	62	17	42.5	30	20 000
QJ 305 N2MA	25	62	17	42.5	30	20 000
QJ 206 MA	30	62	16	37.5	30.5	19 000
QJ 206 N2MA	30	62	16	37.5	30.5	19 000
QJ 306 MA	30	72	19	53	41.5	17 000
QJ 306 N2MA	30	72	19	53	41.5	17 000
QJ 306 N2PHAS	30	72	19	53	41.5	17 000
QJ 207 N2MA	35	72	17	49	41.5	17 000
QJ 307 MA	35	80	21	64	51	15 000
QJ 307 N2MA	35	80	21	64	51	15 000
QJ 307 N2PHAS	35	80	21	64	51	15 000
QJ 208 MA	40	80	18	56	49	15 000
QJ 208 N2MA	40	80	18	56	49	15 000
QJ 208 PHAS	40	80	18	56	49	15 000
QJ 308 MA	40	90	23	78	64	14 000
QJ 308 N2PHAS	40	90	23	78	64	14 000
QJ 209 MA	45	85	19	63	56	14 000
QJ 309 MA	45	100	25	100	83	12 000
QJ 309 N2MA	45	100	25	100	83	12 000
QJ 309 N2PHAS	45	100	25	100	83	12 000
QJ 309 PHAS	45	100	25	100	83	12 000
QJ 210 MA	50	90	20	65.5	61	13 000
QJ 310 MA	50	110	27	118	100	11 000

About us
TIANJIN REET BEARING.CO.,LTD is a professional bearing manufacturer and exporter.
We have a wealth of technical.All producing processes are finished in our manufactory. As an ISO9001:2000 certified manufacturer,we will solve various problems in application and use of our bearings. 
Our company is an authorized distributor of FAG, INA, TIMKEN and other world brand bearings.Our company has the right to self-export bearings and launches its own brand RTB.
Our bearing had been exported to more than twenty countries worldwide and are warmly welcomed.
We're looking forward to your order.
FAQ

1.Is the company a production factory or a trading company?
TIANJIN REET BEARING CO.,LTD is a manufacturing enterprise focusing on bearings and integrating research, production and sales.

2.How many the MOQ of your company?
Depending on the size of the bearing, the MOQ is variable, if you are interested, you can contact me for a quote.

3.Does the company accept OEM or customized bearings?
In addition to standard products, we also supply non-standard and modified standard products for special application. Meanwhile, we provide OEM service.

4.Can the company provide free samples?
We can provide samples for free. You only need to provide shipping.

5.What are the company's delivery terms?
We can accept EXW,FOB,CFR,CIF,etc. You can choose the one which is the most convenient cost effective for you.