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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.
Availability:
8 in stock
Conrad deep groove ball bearing, 60 x 130 x 31 mm, one metal shield, pressed steel cage. Dynamic 81,900 N, static 52,000 N, 5,000 rpm on grease.
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$40.60
8 in stock
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| MFR / Brand | MRC |
|---|---|
| MPN | 312SF |
| Model | 6312-Z |
| Bearing Type | Ball Bearing |
| ID | 60 mm (2.3622 in) |
| OD | 130 mm (5.1181 in) |
| Width | 31 mm (1.2205 in) |
| Base Number | 312 |
|---|---|
| Industry Terms | Deep groove ball bearing; Conrad bearing; single shielded ball bearing; radial ball bearing; Marlin Rockwell |
| Common Misspellings | 312-SF; 312 SF; MCR 312SF; MRC312SF |
| Bore Shaft Size | 60 mm (2.3622 in) |
| Mpn Variants | 312SF; 312-SF; 312 SF; 312-S-F; 6312-Z; 6312Z |
| Additional Attributes | Conrad deep groove, no filling notch; full shoulders on both rings; equal load-carrying capacity in either direction; maximum shaft or housing fillet radius 2.0 mm (0.08 in); load ratings quoted for one million revolutions or 500 hours at 33-1/3 rpm; speed ratings quoted for pressed steel cage at ABEC-1 |
| Dynamic Load Rating | 81,900 N (18,400 lbf) |
| Static Load Rating | 52,000 N (11,700 lbf) |
| Series | MRC 300-S Medium |
| Rolling Elements | Ball |
| Item Weight | 4.0 lb (1.81 kg) |
| Cage Material | Pressed steel |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Limiting Speed | 5,000 rpm grease, 6,000 rpm oil |
| Contact Angle | 0° |
| Part Number | 312SF |
| Closure Type | One metal shield, opposite face open |
| Cross Reference 1 | SKF 6312-Z |
|---|---|
| Cross Reference 2 | NSK 6312Z |
| Cross Reference 3 | MRC 312-SFF – two shields |
| Cross Reference 4 | MRC 312-S – open, no shield |
| Cross Reference 5 | MRC 312-SZZ – two rubber seals |
MRC 312-SF Conrad single-row deep groove ball bearing, 60 x 130 x 31 mm, with one metal shield and the opposite face open. Sold as 1 Pc. Unit Quantity: 1 Pc.
3 — MRC 300-S Medium Series.
12 — bore code, multiplied by five: Bore Diameter 60 mm.
S — Conrad deep groove bearing, no filling notch.
F — one shield. In MRC nomenclature F is one shield, FF two shields, Z one seal and ZZ two synthetic rubber seals.
Bearing Type: Conrad single-row deep groove ball bearing. Bore Diameter: 60 mm (2.3622 in). Outside Diameter: 130 mm (5.1181 in). Overall Width: 31 mm (1.2205 in). Closure Type: one metal shield, opposite face open. Number Of Rows: 1. Rolling Elements: ball. Contact Angle: 0°. Cage Material: pressed steel. Dynamic Load Rating: 81,900 N (18,400 lbf). Static Load Rating: 52,000 N (11,700 lbf). Limiting Speed: 5,000 rpm on grease, 6,000 rpm on oil. Item Weight: 1.81 kg (4.0 lb). Series: MRC 300-S Medium. Source: MRC Bearing Services Engineering Handbook M190-730.
Maximum Shaft or Housing Fillet Radius: 2.0 mm (0.08 in). Bore Type: straight.
Cross-references: SKF 6312-Z; NSK 6312Z; MRC 312-SFF (two shields); MRC 312-S (open, no shield); MRC 312-SZZ (two rubber seals). Also written 6312-Z, 6312Z, 312SF, 312-SF, 312 SF and 312-S-F.
Bore 60 mm, outside diameter 130 mm, width 31 mm.
F means one shield; the opposite face is open.
Dynamic load rating 81,900 N and static load rating 52,000 N.
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Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
Tapered, cylindrical, and spherical roller bearings all solve the same basic problem, carrying more load
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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