HH249949D - HH249910
Tapered Roller Bearings china harmonic drive special for robot suppliers
HH249949-N2/HH249910 NK Cylindrical roller bearing of this type, the cylindrical rollers are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds.
There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs).
The outer and inner rings of all types are separable.
HH249949-N2/HH249910 NK Cylindrical roller bearing have no ribs on either the inner or outer ring, so the rings can move axially relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which either the inner or outer rings has two ribs and the other ring has one, are capable of taking some axial load in one direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.
Pressed steel or machined brass cages are generally used, but sometimes molded polyamide cages are also used.
Series |
HH249900 |
Cone Part Number |
HH249949D |
Cup Part Number |
HH249910 |
Design Units |
Imperial |
Bearing Weight |
253.90 lb115.20 Kg |
Cage Type |
Pin-Type |
Aa - Cage-Cone Backface Clearance |
0 in0 mm |
d - Bore |
9.7500 in247.650 mm |
D - Cup Outer Diameter |
16.0000 in406.400 mm |
B - Double Cone Width |
8.6250 in219.075 mm |
C - Cup Width |
3.6875 in93.663 mm |
T - Bearing Width across Cups |
8.5000 in215.900 mm |
| R - Cone Frontface "To Clear" Radius1 | 0.130 in3.30 mm |
| r - Cup Backface "To Clear" Radius2 | 0.250 in6.40 mm |
da - Cone Frontface Backing Diameter |
10.94 in277.90 mm |
Db - Cup Backface Backing Diameter |
14.41 in366.00 mm |
Ab - Cage-Cone Frontface Clearance |
0.24 in6.1 mm |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 | 115000 lbf509000 N |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 | 769000 lbf3420000 N |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 | 199000 lbf887000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 65200 lbf290000 N |
| K - Factor7 | 1.76 |
| e - ISO Factor8 | 0.7 |
| Y1 - ISO Factor9 | 0.97 |
| Y2 - ISO Factor10 | 1.44 |
| Cg - Geometry Factor11 | 0.175 |
