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QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height

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QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height
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Features
Specifications
Product Name: QJ304M
ID: 20mm
OD: 52mm
Height: 15mm
Type: Four-point Angular Contact Ball Bearing
Cage: Brass Cage
Stock Quantity: 125 Piece
Lead Time: Within 3 Days
Highlight:

Metric Ball Bearings

,

Steel Cage Bearing

Basic Infomation
Place of Origin: Germany
Brand Name: FAG
Certification: ISO
Model Number: QJ304M
Payment & Shipping Terms
Packaging Details: Packed in carton firstly,and then reinforced with wooden case for outer packing
Delivery Time: 3 working days after received your payment
Payment Terms: T/T or western Union or PayPal
Supply Ability: 3,000pcs per month
Product Description

QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height

 

1. Specification:

 

Specification of Bearing

Bearing type

Angular contact ball bearing

Brand type

FAG

Precision Rating

P0,P6,P5,P4,P2

Place of origin

Germany

Vibration

Z1V1,Z2V2,Z3V3

Durability

Long

Material

Bearing steel

Certificate

ISO9001: 2008

Main market abroad

South America,USA,European,Southeast

Asia,Middle East

Packaging Details

1. inner: polyester bag outer:paper carton

2. industrial standard packing

3. Poly bag+box+packing 

4. 4. as your order

Delivery Time

Within 3-5 days after receiving 

your subscription

Payment Terms

T/T,Western Union,Paypal

 

2. Feature:

(1) Singe row

(2) P0,P6,P5,P4 precision
(3) brass,steel or nylon cage

(4) Quick delivery

(5) 1 year's quality guarantee

 

3. Anguar contact contact angle:

AC: 25 degree

B: 40 degree

C: 15 degree

A: 30 degree

 

4. Matching type:

DB: back to back

DF: face to face

DT: Series connect

 

5. Bearing Picture:

QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height 0

QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height 1

 

6. We also supply following angular contact ball bearing:

designation

Dimensions

d (mm)

D (mm)

B (mm)

QJ 318 N2MA

90

190

43

QJ 219 N2MA

95

170

32

QJ 319 N2MA

95

200

45

QJ 220 N2MA

100

180

34

QJ 320 N2MA

100

215

47

QJ 1021 N2MA

105

160

26

QJ 1022 N2MA

110

170

28

QJ 222 N2MA

110

200

38

QJ 322 N2MA

110

240

50

QJ 224 N2MA

120

215

40

QJ 324 N2MA

120

260

55

QJ 226 N2MA

130

230

40

QJ 326 N2MA

130

280

58

QJ 228 N2MA

140

250

42

QJ 328 N2MA

140

300

62

QJ 1030 N2MA

150

225

35

QJ 230 N2MA

150

270

45

QJ 330 N2MA

150

320

65

QJ 1032 N2MA

160

240

38

QJ 232 N2MA

160

290

48

QJ 332 N2MA

160

340

68

QJ 234 N2MA

170

310

52

QJ 334 N2MA

170

360

72

QJ 236 N2MA

180

320

52

QJ 336 N2MA

180

380

75

QJ 1038 N2MA

190

290

46

QJ 238 N2MA

190

340

55

QJ 338 N2MA

190

400

78

QJ 1040 N2MA

200

310

51

QJ 240 N2MA

200

360

58

QJ 1240 N2MA

200

360

70

QJ 1244 N2MA

220

400

78

QJ 344 N2/309829

220

460

88

QJ 344 N2MA

220

460

88

QJ 248 N2MA

240

440

72

QJ 1248 MA/344524

240

440

85

QJ 252 N2MA

260

480

80

QJ 1252 N2MA

260

480

90

QJ 1252 MA

260

480

90

QJ 1056 N2MA

280

420

65

QJ 1256 N2MA

280

500

90

QJ 1060 N2MA

300

460

74

QJ 1060 MA

300

460

74

QJ 1260 N2MA

300

540

98

QJ 1064 N2MA

320

480

74

QJ 1064 MA

320

480

74

QJ 1264 N2MA

320

580

105

QJ 1068 N2MA

340

520

82

QJ 1268 MA/344524

340

620

118

QJ 1072 N2MA

360

540

82

QJ 1272 N2MA

360

650

122

QJ 1076 N2MA

380

560

82

QJ 1276 N2MA

380

680

132

QJ 1080 N2MA

400

600

90

QJ 1280 N2MA

400

720

140

QJ 1984 MA

420

560

65

QJ 1084 N2MA

420

620

90

QJ 1284 N2MA

420

760

150

QJ 1988 N2MA

440

600

74

QJ 1088 N2MA

440

650

94

QJ 1288 N2MA

440

790

155

QJ 1092 N2MA

460

680

100

QJ 1292 N2MA

460

830

165

QJ 1096 N2MA

480

700

100

QJ 1296 N2MA

480

870

170

Company information:

QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height 2

QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height 3QJ304M 4 Point Contact Ball Bearing 25 Degree Contact Angle 15mm Height 4

FAQ

 

How do I determine the correct contact angle for my Angular Contact Ball Bearing application?

Choosing the right contact angle for an Angular Contact Ball Bearing is crucial for optimal performance. The contact angle, typically ranging from 15° to 40°, determines the bearing's axial load capacity. Lower angles (e.g., 15°-25°) are suited for applications with moderate axial loads but require high-speed rotation, such as in electric motors. Higher angles (e.g., 30°-40°) can withstand heavier axial loads, making them ideal for gearboxes or pumps. Understanding the specific operational requirements, including load type and magnitude, rotational speed, and precision needs, will guide you in selecting the Angular Contact Ball Bearing with the most appropriate contact angle.

 

What is preload, and why is it important in the context of Angular Contact Ball Bearings?

Preload in Angular Contact Ball Bearings refers to intentionally introducing a slight axial load during assembly to remove play between the balls and races, enhancing rigidity and precision. This is particularly important in high-precision machinery like CNC machines, where minimal backlash and high stability are required. By carefully adjusting the preload, the bearing's running accuracy and stiffness can be optimized. However, excessive preload can lead to increased friction, heat generation, and reduced bearing life. Therefore, a balanced preload setting is vital to exploit the full potential of Angular Contact Ball Bearings without compromising their longevity.

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