Normal and CL7C class tolerances for metric tapered roller bearings

Inner ring, bearing width and ring widths
d		t_Δdmp		t_Vdsp	t_Vdmp	t_ΔBs		t_Kia		t_ΔTs		t_ΔT1s		t_ΔT2s
								Tolerance classes
								Normal	CL7C¹⁾
>	≤	U	L			U	L			U	L	U	L	U	L
mm		μm		μm	μm	μm		μm		μm		μm		μm

10	18	0	–12	12	9	0	–120	15	7	+200	0	+100	0	+100	0
18	30	0	–12	12	9	0	–120	18	8	+200	0	+100	0	+100	0
30	50	0	–12	12	9	0	–120	20	10	+200	0	+100	0	+100	0

50	80	0	–15	15	11	0	–150	25	10	+200	0	+100	0	+100	0
80	120	0	–20	20	15	0	–200	30	13	+200	–200	+100	–100	+100	–100
120	180	0	–25	25	19	0	–250	35	–	+350	–250	+150	–150	+200	–100

180	250	0	–30	30	23	0	–300	50	–	+350	–250	+150	–150	+200	–100
250	315	0	–35	35	26	0	–350	60	–	+350	–250	+150	–150	+200	–100
315	400	0	–40	40	30	0	–400	70	–	+400	–400	+200	–200	+200	–200


Outer ring
D		t_ΔDmp		t_VDsp	t_VDmp	t_ΔCs		t_Kea
								Tolerance classes
								Normal	CL7C¹⁾
>	≤	U	L			U	L
mm		μm		μm	μm	μm		μm

18	30	0	–12	12	9	0	–120	18	9
30	50	0	–14	14	11	0	–120	20	10
50	80	0	–16	16	12	0	–150	25	13

80	120	0	–18	18	14	0	–200	35	18
120	150	0	–20	20	15	0	–250	40	20
150	180	0	–25	25	19	0	–250	45	23

180	250	0	–30	30	23	0	–300	50	–
250	315	0	–35	35	26	0	–350	60	–
315	400	0	–40	40	30	0	–400	70	–

400	500	0	–45	45	34	0	–450	80	–
500	630	0	–50	60	38	0	–500	100	–
630	800	0	–75	80	55	0	–750	120	–

1) Tolerances are not in accordance with any ISO tolerance class and are for high-performance design tapered roller bearings.

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