bearing type | Dimensions | fixing holes | ||||||||||||
d | D | H | H1 | C | D1 | J | J1 | inner ring | outer ring | |||||
unit: mm | d1 | d2 | a | qty | d3 | qty | ||||||||
mm | mm | |||||||||||||
YRT180 | 180 | 280 | 43 | 29 | 15 | 244 | 194 | 260 | 7 | 11 | 6.2 | 46 | 7 | 45 |
bearing type | Number of retaining screws | Extraction thread hole | Number of pitches X angle of pitches | Screw tightening torque | Basic load rating | Limiting speed | Bearing frictional torque | weight | ||||
axial | radial | |||||||||||
dynamic load | static load | dynamic load | static load | |||||||||
MA2) | Ca | Coa | Cr | Cor | grease | |||||||
G | qty | qty×t | Nm | KN | r/min | Nm | Kg | |||||
YRT180 | 2 | M8 | 3 | 48×7.5° | 14 | 118 | 710 | 69.5 | 200 | 280 | 12 | 7.7 |
Machining tolerances for shafts | |||||||
Bearings | shaft diameter (mm) | roundness(○) | perpendicularity(⊥) | parallelism(∥) | roughness Ra | ||
Nominal dimension | upper | lower | t1(µm) | t3(µm) | t4(µm) | Ra(µm) | |
YRT180 | 180 | 0 | -0.018 | 8 | 5 | 5 | 0.8 |
Machining tolerances for housings | |||||||
Bearings | (mm)housing diameter | roundness(○) | perpendicularity(⊥) | parallelism(∥) | roughness Ra | ||
Nominal dimension | upper | lower | t1(µm) | t3(µm) | t4(µm) | Ra(µm) | |
YRT180 | 280 | +0.025 | -0.007 | 12 | 8 | 8 | 0.8 |