PATENT CLAIM ANALYSIS

Application Number: 15749931
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["384", "504000"]

Abstract:
A matched ball bearing includes four or more rows of angular ball bearings axially aligned, two or more rows of the angular ball bearings with contact angles in a same direction being arranged in a back-to-back combination. The respective angular ball bearings have same inner diameters, respectively. The respective angular ball bearings with contact angles in the same direction have same outer diameters, respectively. The respective angular ball bearings with contact angles in different directions have different outer diameters, respectively. With respect to at least the respective angular ball bearings having the larger outer diameters, the angular ball bearing positioned at an axially outboard side has a ball diameter and a contact angle greater than those of the angular ball bearing positioned at an axially inboard side.

Claim (Index 4):
The spindle device according to  claim 3 ,\n wherein the housing comprises:\n an outer cylinder housing to which a stator of the built-in motor is mounted, \n a front bearing housing which is provided at a front part of the outer cylinder housing and to which an outer ring of the front bearing is internally fitted, and \n a rear bearing housing which is provided at a rear part of the outer cylinder housing and to which an outer ring of the rear bearing is internally fitted or is supported via a bearing sleeve, \n wherein an outer peripheral surface of the front bearing housing has a stepped shape having a large-outer peripheral surface and a small-diameter outer peripheral surface, wherein at least a part of the small-diameter outer peripheral surface of the front bearing housing is arranged at an inner side of an end coil of the stator so as to overlap the end coil of the stator, as seen from a radial direction, and wherein at least one of the motor-side bearings is internally fitted to the front bearing housing at a position at which it overlaps the small-diameter outer peripheral surface of the front bearing housing, as seen from the radial direction.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 2.40351
- Patent Class: 384.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11907761', '10534354', '14395619', '16325451', '10399160']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8188163383840208
- 35 USC 102 Novelty (BERT): 0.4988682273982551
- Combined Prediction Score: 0.7868215272854442
- Mean Citation Score: 233.531514
- Max Citation Score: 253.89485
- Similarity Product: 181.24145183154343

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test