Timken 91008K

Deep groove ball · Open

The seat — 40 MM × 68 MM × 15 MM

Bore

40 MM

Outside dia

68 MM

Width

15 MM

Type

Deep groove ball

Seal

Open

Clearance

CN (Normal)

Precision

ABEC-1 (P0)

Dynamic C

16.8 kN

Static C0

11.6 kN

113 other designations in the catalogue share this bore × outside diameter × width. Each was compared on the four fields every bearing row carries — Type, Seal, Clearance, Precision — as recorded, case- and separator-insensitively. All four agreeing puts a designation in the first list; anything else, a difference or a blank, puts it in the second with the fields named.

Candidates at the recorded dimensions above

May substitute — 11 designations

Part number	Manufacturer	C	C0
BB1-3191/HN3	NTN	20.8 kN	13.2 kN
6008 JEM	NTN	17.8 kN	11.0 kN
6008 NR	NTN	17.8 kN	11.0 kN
6008 NRJEM	NTN	17.8 kN	11.0 kN
6008 RSJEM	NTN	17.8 kN	11.0 kN
6008 ZJEM	NTN	17.8 kN	11.0 kN
PER.6008-2RLD	NTN	17.0 kN	11.7 kN
PER.6008-2RLDV2	NTN	17.0 kN	11.7 kN
PER.6008-D-A	NTN	17.0 kN	11.7 kN
6008	NTN	16.8 kN	11.6 kN
W 6008	NTN	14.6 kN	11.4 kN

Check before substituting — 102 designations · top 12 shown

Part number	Manufacturer	C	Differs from this part
NU 1008 ML	NTN	28.5 kN	Type: Cylindrical — this part: Deep groove ball
NU 1008 ML/HC5C4	NTN	25.1 kN	Type: Cylindrical — this part: Deep groove ball Clearance: C5 — this part: CN (Normal)
N 1008 KTNHA/HC5SP	NTN	24.2 kN	Type: Cylindrical — this part: Deep groove ball Clearance: C5 — this part: CN (Normal)
N 1008 KPHA/HC5SP	NTN	23.3 kN	Type: Cylindrical — this part: Deep groove ball Clearance: C5 — this part: CN (Normal)
N 1008 KPHA/SP	NTN	23.3 kN	Type: Cylindrical — this part: Deep groove ball
N 1008 KPHA/SPVR592	NTN	23.3 kN	Type: Cylindrical — this part: Deep groove ball
6008-2RS1	NTN	17.8 kN	Seal: 2RS contact seal — this part: Open
6008-2RS1/C2	NTN	17.8 kN	Seal: 2RS contact seal — this part: Open Clearance: C2 — this part: CN (Normal)
6008-2RS1/C3	NTN	17.8 kN	Clearance: C3 — this part: CN (Normal)
6008-2RS1/C3GJN	NTN	17.8 kN	Clearance: C3 — this part: CN (Normal)
6008-2RS1/W64	NTN	17.8 kN	Seal: 2RS contact seal — this part: Open
6008-2RS1NR/C3	NTN	17.8 kN	Clearance: C3 — this part: CN (Normal)

What this sheet is — and what the catalogue did not say

The envelope is recorded dimensions only: the same bore, outside diameter and width. Every designation above shares all three, or it would not be on this page.
The four compared fields are Type, Seal, Clearance, Precision. Two recorded spellings were counted to mean one value and are read as one: CN/Normal = CN, and ABEC-1/P0 = P0. A third precision spelling, P0/Class4, is deliberately not equated with either — the catalogue's meaning for it has not been sourced, so it lands in the warnings where both spellings are printed for the reader to judge.
A blank is a difference. Missing is the absence of the proof, not the proof.
Cage material and ring material are never compared: the catalogue records neither, on any bearing row.
Suffixes the catalogue does not record separately — a snap ring (NR) and anything else outside those four fields — are not compared, and this sheet does not claim they match.
Ranking is recorded dynamic load, strongest first, with an unrecorded rating ranked last. It orders the lists; it is not a verdict.
Compiled from catalogue records. This is not a manufacturer interchange list, no manufacturer has confirmed any line on it, and it does not know what job the bearing is doing. Verify before fitting.

Anyone with this link can view this part and its recorded candidate comparison.

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