N309W Cylindrical Roller Coal Winning Machine Bearing 45x100x25mm
With over 10170 full-service Pioneer Machinery Source stores, our N309W Cylindrical Roller Coal Winning Machine Bearing 45x100x25mm inventory is extensive and our parts are priced right. 28x68x18 within 24 28x68x18 Size (mm) hours. This helps you maximize your productivity by saving time and your hard-earned dollars.
Bearing number: | 63/28NR |
Size (mm): | 28x68x18 |
Bore Diameter (mm): | 28 |
Outer Diameter (mm): | 68 |
Width (mm): | 18 |
d: | 28 mm |
D: | 68 mm |
B: | 18 mm |
Product Details
Bearing number | 63/28NR |
Size (mm) | 28x68x18 |
Bore Diameter (mm) | 28 |
Outer Diameter (mm) | 68 |
Width (mm) | 18 |
d | 28 mm |
D | 68 mm |
B | 18 mm |
C | 18 mm |
rn | 0,5 mm |
a | 3,28 mm |
b | 1,9 mm |
f | 1,7 mm |
r min. | 1,1 mm |
r0 max. | 0,6 mm |
D1 | 64,82 mm |
D2 | 74,6 mm |
da min. | 34,5 mm |
da max | 38,5 mm |
Da max. | 61,5 mm |
ra max. | 1 mm |
Dx | 76 mm |
Cy | 4,6 mm |
Cz | 1,7 mm |
Weight | 0,284 Kg |
Basic dynamic load rating (C) | 26,7 kN |
Basic static load rating (C0) | 14 kN |
(Grease) Lubrication Speed | 11 000 r/min |
(Oil) Lubrication Speed | 13 000 r/min |
a min | 3.07 mm |
a max | 3.28 mm |
Ca min | 4.77 mm |
Ca max | 4.98 mm |
rs min | 1.1 mm |
rNs min | 0.5 mm |
D3 max | 64.82 mm |
b min | 1.9 mm |
b max | 2.2 mm |
r0 max | 0.6 mm |
D4 max | 74.6 mm |
Snap ring reference | R68 |
Radial clearance class | CN |
Mass | 0.28 kg |
Dynamic load, C | 26.7 kN |
Static load, C0 | 14 kN |
Fatigue limit load, Cu | 0.64 kN |
f0 | 12.4 |
Nlim (oil) | 13,000 rpm |
Nlim (grease) | 11,000 rpm |
Min operating temperature, Tmin | -20 °C |
Max operating temperature, Tmax | 120 °C |
Characteristic cage frequency, FTF | 0.37 Hz |
Characteristic rolling element frequency, BSF | 3.52 Hz |
Characteristic outer ring frequency, BPF0 | 2.57 Hz |
Characteristic inner ring frequency, BPFI | 4.43 Hz |
da min | 34.5 mm |
Da max | 61.5 mm |
ra max | 1 mm |
rNa max | 0.5 mm |
Db min | 76 mm |
Category | Single Row Ball Bearing |
Inventory | 0.0 |
Minimum Buy Quantity | N/A |
Weight / Kilogram | 0.291 |
Product Group | B00308 |
Enclosure | Open |
Precision Class | ABEC 1 | ISO P0 |
Maximum Capacity / Filling Slot | No |
Rolling Element | Ball Bearing |
Snap Ring | Yes |
Internal Special Features | No |
Cage Material | Steel |
Internal Clearance | C0-Medium |
Inch - Metric | Metric |
Long Description | 28MM Bore; 68MM Outside Diameter; 18MM Outer Race Diameter; Open; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; Yes Snap Ring; No Internal Special Features |
UNSPSC | 31171504 |
Harmonized Tariff Code | 8482.10.50.68 |
Noun | Bearing |
Keyword String | Ball |
Manufacturer Item Number | 63/28NR |
Weight / LBS | 0.633 |
Outside Diameter | 2.677 Inch | 68 Millimeter |
Outer Race Width | 0.709 Inch | 18 Millimeter |
Bore | 1.102 Inch | 28 Millimeter |
bore diameter: | 28 mm |
finish/coating: | Uncoated |
outside diameter: | 68 mm |
bearing material: | High Carbon Chrome Steel |
overall width: | 18 mm |
cage material: | Steel |
bore type: | Round |
inner ring width: | 18 mm |
closure type: | Open |
outer ring width: | 18 mm |
row type & fill slot: | Single Row Non-Fill Slot |
maximum rpm (grease): | 11000 rpm |
snap ring included: | With Snap Ring |
maximum rpm (oil): | 13000 rpm |
internal clearance: | CN |
fillet radius: | 1.1 mm |
operating temperature range: | -40 to 120 ºC |
maximum rpm: | 7400 RPM |
dynamic load capacity: | 26700 N |
series: | 63 |
static load capacity: | 14000 N |
manufacturer product page: | Click here |
precision rating: | ISO Class 0 |
Company Profile
Worktime |
7:00AM - 6:00PM |
Phone |
0065 82577418 |
Fax |
0065 82577552 |