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Chamfer dimension limits for inch tapered roller bearings

Chamfer dimension limits for inch tapered roller bearings

		Inner ring				Outer ring
Minimum single chamfer dimension		Nominal bearing bore diameter		Maximum chamfer dimensions		Nominal bearing outside diameter		Maximum chamfer dimensions
r_{s min}		d		r₁	r₂	D		r₃	r₄
>	≤	>	≤			>	≤
mm		mm		mm		mm		mm

0,6	1,4	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 0,9	r_{2 min} + 2	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 0,9	r_{4 min} + 2

1,4	2,5	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 2	r_{2 min} + 3	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 2	r_{4 min} + 3

2,5	4,0	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	400	r_{1 min} + 2	r_{2 min} + 4	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
		400	–	r_{1 min} + 2,5	r_{2 min} + 4,5	355,6	400	r_{3 min} + 2	r_{4 min} + 4
						400	–	r_{3 min} + 2,5	r_{4 min} + 4,5

4,0	5,0	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 2,5	r_{2 min} + 4	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 2,5	r_{4 min} + 4

5,0	6,0	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 3	r_{2 min} + 5	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 3	r_{4 min} + 5

6,0	7,5	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 4,5	r_{2 min} + 6,5	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 4,5	r_{4 min} + 6,5

7,5	9,5	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 6,5	r_{2 min} + 9,5	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 6,5	r_{4 min} + 9,5

9,5	12	–	101,6	r_{1 min} + 0,5	r_{2 min} + 1,3	–	168,3	r_{3 min} + 0,6	r_{4 min} + 1,2
		101,6	254	r_{1 min} + 0,6	r_{2 min} + 1,8	168,3	266,7	r_{3 min} + 0,8	r_{4 min} + 1,4
		254	–	r_{1 min} + 8	r_{2 min} + 11	266,7	355,6	r_{3 min} + 1,7	r_{4 min} + 1,7
						355,6	–	r_{3 min} + 8	r_{4 min} + 11

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