d - 140 mm

D - 250 mm

B - 42 mm

d₁ - 176.8 mm

d₂ - 176.8 mm

D₁ - 213.2 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 1.5 mm

a - 66.7 mm

d_a - min. - 154 mm

d_b - min. - 154 mm

D_a - max. - 236 mm

D_b - max. - 241 mm

r_a - max. - 2.5 mm

r_b - max. - 1.5 mm

d_n - 184.8 mm

Basic dynamic load rating - C - 212 kN

Basic static load rating - C₀ - 228 kN

Fatigue load limit - P_u - 7 kN

Limiting speed for grease lubrication - 6000 r/min

Limiting speed for oil lubrication - 9000 mm/min

Ball - D_w - 30.162 mm

Ball - z - 18

G_ref - 83.931 cm3

Calculation factor - e - 0.68

Calculation factor - Y₂ - 0.87

Calculation factor - Y₀ - 0.38

Calculation factor - X₂ - 0.41

Calculation factor - Y₁ - 0.92

Calculation factor - Y₂ - 1.41

Calculation factor - Y₀ - 0.76

Calculation factor - X₂ - 0.67

Preload class A - G_A - 1350 N

Preload class B - G_B - 2700 N

Preload class C - G_C - 5400 N

Preload class D - G_D - 10800 N

Calculation factor - f - 1.09

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.01

Calculation factor - f_2C - 1.03

Calculation factor - f_2D - 1.06

Calculation factor - f_HC - 1.01

Preload class A - 441 N/micron

Preload class B - 573 N/micron

Preload class C - 754 N/micron

Preload class D - 1011 N/micron

Mass bearing - 6.923 kg

• Model Number:7228 ACD/HCP4A
• Inner Diameter：250mm Outer Diameter：140mm Width：42mm
• Type：Angular Contact Ball Bearings
• Update date：2025-12-12
• Application:Hairbrush device,Rolling mill,embroidery cloth,office equipment,X-ray Equipment,medical equipment,Insect Count,engineering machine,Other machinery,storage shelves,Roller
• Similar models:SKF S7228CD/P4A NTN 7228DT AST 7228C CYSD 7228CDF CYSD 7228 NTN 7228C NTN 7228DFT NTN 7228 NACHI 7228BDB SKF 7228CD/HCP4A
• BEARING POWER International Trading Co.,Ltd. specialize in 7228ACD/HCP4A products，there is large inventory of SKF 7228 ACD/HCP4A . We has been built up long-term cooperation with SKF company, could make a bulk order of the 7228 ACD/HCP4A Which SKF 7228ACD/HCP4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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