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:
2 in stock
Fafnir RTU1 ball bearing take-up unit, 1 in bore, eccentric locking collar, cast iron side-mount frame, shroud seal, 57.2 mm slot length, 92.1 mm height.
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$51.95

2 in stock
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| MFR / Brand | Fafnir |
|---|---|
| MPN | RTU1 |
| GTIN | 087796057487 |
| Model | RTU 1 |
| ID | 1 in (25.4 mm) |
| Base Number | RTU1 |
|---|---|
| Bearing Insert Type | Ball |
| Bore Shaft Size | 1 in (25.4 mm) |
| Housing Style | Take-Up Unit, Side Mount |
| Locking Method | Eccentric Locking Collar |
| Relubrication | Grease fitting |
| Replacement Insert | G1100KRRB |
| Mpn Variants | RTU-1, RTU 1, Timken SAP material ID 101776841 |
| Manufacturer Status | Active |
| Additional Attributes | Total height H 92.1 mm (3.626 in); pitch height H1 76.2 mm; height H2 57.2 mm; total length L 102.4 mm (4.031 in); shaft length L1 67.5 mm (2.657 in); slot length L3 57.2 mm (2.252 in); housing width A 44.4 mm (1.748 in); slot width A1 13.5 mm (0.531 in); socket width A2 37.3 mm (1.469 in); adjustment screw bore N 19 mm (0.748 in); opening width N1 15.9 mm (0.626 in); opening height N2 31.8 mm (1.252 in); S1 26.9 mm; G 42.9 mm; P 34.9 mm; T 22.2 mm |
| Material | Cast Iron |
| Dynamic Load Rating | 15500 N (3490 lbf) |
| Static Load Rating | 7800 N (1750 lbf) |
| Series | RTU |
| Type | Take-Up Unit Bearing |
| Bearing Type | Mounted Take-Up Ball Bearing Unit |
| Item Weight | 3.3 lb (1.50 kg) |
| Number Of Rows | 1 |
| Relubrication Feature | Grease fitting |
| Design Units | Imperial |
| Part Number | RTU1 |
| Closure Type | Shroud Seal |
| Industry Terms | take-up bearing; take-up unit; belt tensioner bearing; mounted ball bearing take-up |
| Common Misspellings | Fafnir RTU-1; Fanir RTU1; Fafner RTU1; Fafnir RTU 1 |
| Application Types | conveyors; belt and chain drives; material handling equipment |
Fafnir RTU1, a ball bearing take-up unit from Timken’s Fafnir mounted ball bearing range. Bore / Shaft Size: 1 in (25.4 mm). Housing Style: take-up, side-mount frame. Material: cast iron. Locking Method: eccentric locking collar. Closure Type: shroud seal. Insert Bearing: G1100KRRB wide inner ring ball bearing. Series: Industrial. Unit Quantity: 1 Pc, one complete take-up unit with cast iron frame, insert bearing, eccentric collar and seals assembled. GTIN: 087796057487.
RTU — Fafnir take-up mounted bearing, cast iron side-mount frame carrying an eccentric locking collar insert.
1 — shaft size, 1 in.
G1100KRRB — the wide inner ring insert bearing fitted in the frame, with its extended inner ring and eccentric collar seat.
Bore / Shaft Size: 1 in (25.4 mm). Dynamic Load Rating: 15,500 N (3,490 lbf). Static Load Rating: 7,800 N (1,750 lbf). Item Weight: 3.3 lb (1.50 kg). Material: Cast iron. Closure Type: Shroud seal. Locking Method: Eccentric locking collar.
Total Height H: 92.1 mm (3.626 in). Pitch Height H1: 76.2 mm. Height H2: 57.2 mm. Total Length L: 102.4 mm (4.031 in). Shaft Length L1: 67.5 mm (2.657 in). Slot Length L3: 57.2 mm (2.252 in). Housing Width A: 44.4 mm (1.748 in). Slot Width A1: 13.5 mm (0.531 in). Socket Width A2: 37.3 mm (1.469 in). Adjustment Screw Bore N: 19 mm (0.748 in). Opening Width N1: 15.9 mm (0.626 in). Opening Height N2: 31.8 mm (1.252 in). Dimension S1: 26.9 mm (1.059 in). Dimension G: 42.9 mm (1.689 in). Dimension P: 34.9 mm (1.374 in). Dimension T: 22.2 mm (0.874 in).
The insert on its own is catalogued as the Fafnir G1100KRRB. The number is also written RTU-1 and RTU 1. Timken SAP material ID: 101776841.
1 in (25.4 mm).
The G1100KRRB wide inner ring ball bearing with an eccentric locking collar.
57.2 mm (2.252 in).
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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
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Our team can locate, cross-reference, and source all parts.
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