R-Series Spiral-Bevel Gearboxes

Overview:

The R-Series Spiral-Bevel Gearboxes are available in 3 sizes with ratios from 1:1 to 6:1. These rugged units take over for the Z-Series in high power requirement applications, with ratings from 600 hp to 1,700 hp. The R-Series features carburized alloy steel spiral-bevel gears that are lapped and installed in matched sets to insure low-backlash, quiet operation. Backlash of 10 arcminutes is standard, with the option for <6 arcminutes available on request. Efficiency of the units is from 96% to 99%.

These versatile units can be used as both reducers and increasers and can be mounted in any position. Solid through-shafts and hollow bores are also available. The units have nearly cubic housings, which can be machined on all 6 faces for easy integration into designs. The housings are cast iron for strength and durability. Oversized tapered-roller bearings support every shaft for high radial and axial load capacities. Lubrication is either grease, oil splash, or force-feed depending on the application.

Applications:

Test Benches
Metal Forming Presses

Ratings:

Unit Ratio	Unit Size	Input Torque (lb.ft.) based on Input Speed
Unit Ratio	Unit Size	10 rpm	500 rpm	1,000 rpm	1,500 rpm	2,000 rpm	3,000 rpm
1:1	R41	4,367	2,235	1,829	1,689	1,586	-
	R51	8,453	4,138	3,658	3,334	3,135	-
	R63	15,490	7,405	6,476	5,864	-	-
2:1	R41	2,323	1,217	1,018	907	900	-
	R51	4,927	2,323	1,933	1,837	1,696	-
	R63	8,807	4,396	3,850	3,555	-	-
3:1	R41	1,755	789	656	583	516	-
	R51	2,818	1,519	1,261	1,121	1,018	-
	R63	5,421	2,434	2,043	1,896	-	-
4:1	R41	563	423	373	347	335	301
	R51	845	760	690	679	581	-
	R63	3,238	1,497	1,239	1,106	1,051	-
5:1	R41	351	310	260	236	204	177
	R51	632	524	443	398	354	-
	R63	2,250	1,055	878	782	752	-
6:1	R41	280	184	170	140	131	118
	R51	561	409	332	301	246	-
	R63	1409	704	590	528	505	-

* Speeds above 1,000 rpm may require force-feed lubrication, please consult the factory.
Information provided is subject to change without notice.

To insure proper selection, please consult the factory. If you have any questions regarding the information provided here or require more information, please call us at (800) 713-6170 or e-mail us. Our Sales and Engineering departments are ready to help you with your specific power transmission needs.