PATENT CLAIM ANALYSIS

Application Number: 16298146
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["384", "571000"]

Abstract:
A raceway surface ( 3 a ) of an outer ring ( 3 ) of a tapered roller bearing ( 1 ) includes a composite crowning surface. The composite crowning surface includes a center curve ( 3 a 1 ), which is formed at a center portion in a generating-line direction, and end portion curves ( 3 a 2  and  3 a 3 ), which are formed on both sides of the center curve ( 3 a 1 ) in the generating-line direction. The raceway surface ( 3 a ) of the outer ring ( 3 ) is entirely subjected to superfinishing. Each of a ratio (R 2 /R 1 ) of a curvature radius (R 2 ) of the end portion curve ( 3 a 2 ) to a curvature radius (R 1 ) of the center curve ( 3 a 1 ) and a ratio (R 3 /R 1 ) of a curvature radius (R 3 ) of the end portion curve ( 3 a 3 ) to the curvature radius (R 1 ) is set to 0.02 or more. Each of drop amounts of the end portion curves ( 3 a 2  and  3 a 3 ) is set to 0.07 mm or less.

Claim (Index 7):
A tapered roller bearing, comprising:\n an inner ring comprising a raceway surface having a tapered shape on an outer peripheral surface of the inner ring; an outer ring comprising a raceway surface having a tapered shape on an inner peripheral surface of the outer ring; a plurality of tapered rollers, which are arranged between the raceway surface of the inner ring and the raceway surface of the outer ring so as to be rollable and each comprise a rolling surface having a tapered shape on an outer peripheral surface of each of the plurality of tapered rollers; and a cage which is configured to retain the plurality of tapered rollers at predetermined intervals, wherein the raceway surface of the outer ring comprises a composite crowning surface, the composite crowning surface comprising a center curve, which is formed at a center portion in a generating-line direction and has a curvature radius R 1 , and end portion curves, which are formed on both sides of the center curve in the generating-line direction and each have a curvature radius R 2 , R 3  which is smaller than the curvature radius R 1  of the center curve, wherein the raceway surface of the outer ring is entirely subjected to superfinishing, and wherein each of a ratio R 2 /R 1  of the curvature radius R 2  of the end portion curve to the curvature radius R 1  of the center curve and a ratio R 3 /R 1  of the curvature radius R 3  of the end portion curve to the curvature radius R 1  of the center curve is set to 0.02 or more, and each of drop amounts of the end portion curves is set to 0.02 mm or more.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 99.0
- Lexical Diversity: 3.74576
- Patent Class: 384.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15542181', '15692028', '14586459', '11504760', '11504761']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8055022149802616
- 35 USC 102 Novelty (BERT): 0.5838356093682489
- Combined Prediction Score: 0.7833355544190603
- Mean Citation Score: 341.44362
- Max Citation Score: 486.6399
- Similarity Product: 474.837475286007

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test