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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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2 in stock
Double-row cylindrical roller bearing, 105 x 160 x 41 mm, tapered 1:12 bore, machined brass cage, SP precision class. FAG NN3021-K-M-SP, 1 piece.
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2 in stock
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| MFR / Brand | FAG |
|---|---|
| MPN | NN3021-K-M-SP |
| Model | NN3021KM.SP |
| Bearing Type | Cylindrical Roller Bearing, Open |
| ID | 105 mm |
| OD | 160 mm |
| Width | 41 mm |
| Material | Chrome Steel |
|---|---|
| Series | NN3000 |
| Base Number | NN3021 |
| Industry Terms | double row cylindrical roller bearing, precision spindle bearing, tapered bore roller bearing, machine tool bearing |
| Common Misspellings | NN3021KMSP5, NN 3021KM SP, FAG NN3021 KMSP, NN3021KN.SP |
| Application Types | machine tool spindles, lathe headstocks, grinding spindles, gearboxes |
| Bore Shaft Size | 105 mm (4.1339 in), tapered 1:12 |
| Mpn Variants | NN3021KM.SP, NN-3021-KM-SP, NN3021K.M.SP, NN 3021 K M SP, NN3021KMSP, NN3021-AS-K-M-SP |
| Precision Class | SP |
| Rolling Elements | Cylindrical Roller |
| Cage Material | Machined brass |
| Number Of Rows | 2 |
| Bore Type | Tapered Bore |
| Snap Ring Included | No |
| Harmonization Code | 8482.50.00.00 |
| Part Number | NN3021KM.SP |
| Cross Reference 1 | FAG NN3021-AS-K-M-SP – adds outer-ring lube groove |
|---|---|
| Cross Reference 2 | NSK NN3021KCC1P5 |
| Cross Reference 3 | NTN NN3021KC1NAP5 |
| Cross Reference 4 | SKF NN 3021 KTN9/SP – polyamide cage, not brass |
FAG NN3021-K-M-SP is a double-row cylindrical roller bearing with a tapered 1:12 bore, 105 x 160 x 41 mm. Two rows of cylindrical rollers run between a one-piece outer ring and a one-piece inner ring. Unit Quantity: 1 Pc. Bearing only.
NN30 — double-row cylindrical roller bearing, ISO dimension series 30.
21 — bore code, 105 mm bore.
K — 1:12 tapered bore.
M — machined brass cage.
SP — FAG special precision class: dimensional tolerance to P5 with tightened running accuracy.
Bore Diameter: 105 mm (4.1339 in), tapered 1:12. Outside Diameter: 160 mm (6.2992 in). Overall Width: 41 mm (1.6142 in). Number Of Rows: 2. Rolling Elements: Cylindrical Roller. Cage Material: Machined brass. Precision Class: SP. Arrangement: Non-locating, radial load only. Closure Type: Open. Bearing Material: Chrome steel. Country of Origin: Germany.
The 1:12 tapered bore mounts directly on a matching tapered journal; no adapter sleeve is used. Non-locating design: radial load only. Both rings are one piece; the roller set with the inner ring separates from the outer ring.
Current Schaeffler designation NN3021-AS-K-M-SP adds a lubrication groove and holes in the outer ring. NSK NN3021KCC1P5. NTN NN3021KC1NAP5. SKF NN 3021 KTN9/SP — polyamide cage instead of brass.
Bore Diameter: 105 mm (tapered 1:12). Outside Diameter: 160 mm. Overall Width: 41 mm.
K is a 1:12 tapered bore.
Machined brass cage (M).
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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